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Spiders
(order Araneae, class Arachnida, subphylum
Chelicerata, phylum Arthropoda, superphylum Protostomia, subkingdom Metazoa,
kingdom Animalia, domain Eukarya) Discussion
of Taxonomy Source Choices
Click on arrows to show pull-down menus:
All spiders are venomous, but
only a couple of species in the US, the
Brown Recluse (not pictured on this
page) and the
Black Widow
can do serious harm to humans via their venom. The Brown Recluse, also
called the "violin spider" because of a charactertistic dark marking on its
cephalothorax (literally, "head-neck"), is most often
found indoors in old houses not protected by pest control. Black Widows are generally found outside.
The tarantulas of the Southwestern US sometimes bite in self-defense and can
sometimes toss spine-like hairs at their attackers. The harmless North
American Funnel Web Spiders (members of the Agelenidae family) should not be
confused with the highly venomous Sydney (Australia) Funnel Web Spiders (Atrax
robustus), which are members of another suborder altogether (the Mygalomorphae).
Re spider
identification questions:
If you are afraid of encountering a poisonous spider in your home (and there are
some places where there is real danger), please consider contacting your local
North Carolina Agricultural Extension agent (or the equivalent if you
live in another state) for advice. It may be necessary to consider using pest control if
you live in warmer, less developed parts of the US (and various other places in
the world). When I lived in Arkansas, people there complained more
about their fear of encountering Brown Recluses than about anything else, with the possible
exception of copperheads. Unlike in Piedmont North
Carolina, insects and arachnids (including
ticks) were often a source of fear and the risk of getting Rocky Mountain
Spotted Fever was a major concern.
However, if you're confident that insects and arachnids in
your area aren't dangerous, feel free to ask questions. If the photos
for a species aren't up to snuff by your standards, by all means say so!
Purseweb
Spider (Sphodros genus, Atypidae family,
Mygalomorphae suborder)
Mygalomorphs are generally large spiders. True
Tarantulas (family Theraphosidae) are members of this suborder; some are found
in the Southwestern US.
The Atypidae are sometimes known as "atypical tarantulas."
There are two genera in the US: Atypus and Sphodros.
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| Male
Purseweb Spider
(Sphodros atlanticus),
Eno River State Park, Fews Ford access, top
of Cox Mountain, Orange County, NC, 5/27/06.
Family
ID thanks to John and Jane Balaban,
referring to
BugGuide's Purseweb Spider page. Genus, species and sex ID thanks to
Jeff Hollenbeck. |
Common Orb
Weavers
(Araneidae family, Araneoidea, Orbiculariae,
Entelegynae, Araneomorphae)
Spinning
mainly vertical flat, spiral-patterned webs ("orbs") is characteristic of
most these spiders, but it is not the most important taxonomically.
Arachnologists consider anatomical structure and behavior to be more important
than web characteristics, as exemplified by
Willey and Johnson (1992).
Spiny Orb
Weavers
(Micrathena genus, Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
These orb weavers have traditionally been considered to be in
this family, and I'm betting it will be official in the final classification
scheme. But their genus seems not to have come up for consideration yet.
Micrathena gracilis
These spiders, commonly known as Spined Micrathenas,
have five black spines on a mostly white abdomen, at least under ideal
circumstances. I see six spines on some of these, and have no ready
answers.
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Spined Micrathena
(Micrathena gracilis), Durham, 7/28/05. This spider had spun a web
across a walking path in my neighborhood that was high enough not to be
disturbed by people. |
Spined Micrathena (Micrathena gracilis), Riverbend Park, Catawba
County, 9/24/09 |
Penny's Bend, Durham County, NC,
8/24/05. |
Micrathena mitrata
These spiders have just two spines on their abdomens,
but are similar to the gracilis species spiders otherwise. ID based
on remarks about this species near the bottom of the Micrathena Gracilis page of
the
University of Arkansas' Arthropod Museum Notes.
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| Micrathena mitrata,
Penny's Bend Nature Preserve, Durham County, NC, 9/7/07. |
Chatham County, NC, 11/9/05. This one
was about ¼ inch long. |
Mason Farm Biological Reserve, 9/8/05.
The two spines are not obvious here. |
Micrathena mitrata, ventral view. Riverbend Park, Catawba County,
NC, 9/24/09 |
Maybe the other side of a mitrata,
but just guessing! Mason Farm Biological Reserve, 10/23/05.
This tiny spider was only about ¼ inch
long, so I was surprised to see the "spiny" abdomen. It was one of only
2 spiders I saw that day. |
Arrow-shaped Micrathenas
(Micrathena sagittata)
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Arrow-shaped
Micrathena
(Micrathena sagittata), Eno River SP, Old
Cole Mill Road access, 7/30/05. This spider was in the process of
web-spinning. |
Another
Arrow-shaped Micrathena
spider found in the same general area. |
Arrow-shaped Micrathena (Micrathena sagittata), Mason Farm
Biological Reserve, Orange County, NC, 8/12/08 |
Crablike Spiny Orb Weavers
(Gasterocantha cancriformis, Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
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Crablike
Spiny Orb Weaver, Cypress Gardens, Berkeley County, SC,
10/12/07.
See other
spiders. |
Crablike Spiny Orb Weaver
(Gasteracantha cancriformis), Carolina Beach State
Park, New Hanover County, NC, 6/23/06 |
Crablike Spiny Orb Weaver,
same spider |
Crablike Spiny Orb Weaver,
Carolina Beach State Park, New Hanover County, NC,
6/23/07 |
Crablike Spiny Orb Weaver,
Fort Fisher Basin Trail, New Hanover County, NC,
6/22/06 |
Crablike Spiny Orb Weaver,
Audubon Swamp Garden, Charleston County, SC, 10/11/07 |
Star-bellied Orb Weavers
(Acanthepeira stellata, Araneidae family,
Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
There are only five species in this genus.
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Star-bellied Orb Weaver (mostly ventral view), Penny's Bend Nature
Preserve, Durham, NC, 8/23/09. |
Star-bellied spider, Mason Farm
Biological Reserve, Orange County, NC, 8/28/05. This one reminds of
part of a cuckoo clock my mother once had! |
Star-bellied spider, Indian
Creek Trail, a Jordan Lake Game Land, Chatham County, NC, 7/7/06:
ventral view on left, dorsal on right. |
Triangulate Orb Weavers
(Verrucosa arenata, Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
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Triangulate Orb Weaver
(Verrucosa arenata), Indian Creek, 8/2/05 |
Triangulate
Orb Weaver, Little River Park, Orange County, NC, 10/20/07 |
Triangulate Orb
Weaver (Verrucosa arenata),
Mason Farm Biological Reserve, 9/18/05. |
Triangulate Orb
Weaver
(Verrucosa arenata), White Pines Nature
Preserve, Chatham County, NC, 9/25/05. ID based on the
State of Missouri's spiders page.
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Araneus
genus members,
Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae
Araneus and Neoscona are very similar genera, and many
of these photos were not taken at an angle that reveals the one tiny difference
(the posterior dorsal longitudinal groove), as described at
American Museum of Natural History's Orb Weaver Page. So many of these
are guesses.
Araneus marmoreus
(Marbled Orb Weavers)
These pictures illustrate the variation in abdominal
patterns occuring among members of this species.
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Marbled Orb Weaver
(Araneus marmoreus),
Johnston Mill Nature Preserve, Orange County, NC, 9/27/07 |
Marbled Orb Weaver,
Eno River State Park, Orange County, NC, 10/9/06. |
Marbled Orb Weaver?,
Nova Scotia, Canada, 10/18/07. Photo taken by Nancy Crowell.
ID is uncertain, since Nova Scotia may have some spider species unique
to the area. |
Marbled Orb
Weaver, Sybertsville, PA, 9/26/08. Photo by Ted Reinmiller. |
Marbled Orb Weaver. Photo taken by Steve Harkins, Waxhaw,
Union County, NC, 12/25/08. |
Marbled Orb Weaver (Araneus marmoreus),
Durham, 9/27/05. |
Marbled Orb Weaver
(Araneus marmoreus),
mostly ventral view, Eno River State Park,
Old Cole Mill Road access, 9/16/05 |
Araneus guttulatus
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| Araneus guttulatus, Durham, NC,
6/14/08. A very tiny spider, about 2 mm long. |
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Araneus alboventris
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| Orb weaver (Araneus
alboventris), very tiny, was hanging by a strand of silk from a tree. It
had recently lost two legs, which were in the process of growing back. |
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Araneus genus, unknown species
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| Araneus genus orb weaver,
Durham, NC, 8/18/07 |
Neoscona genus members,
Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae
Neoscona Crucifera
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Spider
(Neoscona crucifera), dorsal view, Durham,
9/28/08 |
Spider
(Neoscona crucifera), ventral view, Durham, 9/28/08 |
Spider
(Neoscona crucifera), ventral view, Durham, 8/5/05. Probably a male. |
Spider
(Neoscona crucifera,
ventral view, White Pines Natural Area, Chatham County, 9/25/05. Maybe
another male. |
Spider,
side view, Durham, NC, 8/30/06 |
Other Neoscona genus members
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| Neoscona domiciliorum, Johnston's Mill
Nature Preserve, Orange County, NC, 8/25/05 |
Orb weaver (Neoscona genus), Penny's
Bend Nature Preserve, Durham County, NC, 6/15/07 |
Orb weaver
(Neoscona genus),
Johnston Mill Nature Preserve, Orange County, NC, 9/9/06 |
Orb weaver (Neoscona genus), Durham,
7/6/05 |
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| Orb weaver (Neoscona
genus), Durham, 8/11/07. This spider repaired its web every night. |
Orb weaver (Neoscona
genus), Durham, NC, 8/14/07. This was apparently the same spider,
several nights later, resting after repairing its web. |
Argiope genus,
Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae
Argiopes are standard orb weavers in that their webs are
round and flat.
White-backed Garden Spider
or Banded Argiope (Argiope trifasciata)
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White-backed
Garden Spider,
Durham, 9/27/05. Also very well-fed. Was
hanging out next to a large lantana patch visited by many insects. |
White-backed
Garden Spider,
Penny's Bend, Durham County, NC, 10/15/05,
ventral view |
White-backed Garden Spider.
Dorsal view of the same spider. Definitely
well-fed! |
White-backed
Garden Spider,
Mason Farm Biological Reserve, Orange
County, NC, 10/17/07
Dorsal view. |
White-backed
Garden Spider,
ventral view of the same spider. |
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Yellow-and-black Garden Spider
(Argiope aurantia)
All of these are females.
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Yellow-and-black
Garden Spider, 9/2/04. Not so well-fed. |
Yellow-and-black
Garden Spider, Indian Creek Trail, Chatham
County, 8/2/05. Also not so well-fed. |
Yellow-and-black
Garden Spider.
Close-up of well-fed Argiope.
Doesn't look as much like just another Harnett County, NC (8/10/04)
spider as it does ... a
Spider Woman (at our online store)?
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Yellow-and-black
Garden Spider,
Durham, NC, 10/10/09, with prey. |
Yellow-and-Black
Garden Spider,
Fayetteville, NC, 8/25/06. Taken by Adolph
Thomas. © 2006 Adolph Thomas.
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Immature Yellow-and-Black
Garden Spider?,
Fort Fisher, New Hanover County, NC, 6/22/06. ID tentative:
somewhat different than those seen in the NC Piedmont. See
BugGuide's photo of this type of spider. |
Yellow-and-black Garden Spider,
Jordan Lake Game Land, Chatham County, NC 10/1/06 |
Egg sac of
Yellow-and-black Garden Spider on left. Jordan Lake Game Land,
Chatham County, NC 10/1/06 |
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A long view of a
Yellow-and-black
Garden Spider,
Ozark, MO, 8/12/10. Photo by Susi
Meredith. |
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Mangora genus,
Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae
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| Orb weaver (probably Mangora placida),
Penny's Bend Nature Preserve, Durham County, NC, 3/30/07 |
Orb weaver (probably Mangora placida),
Johnston Mill Nature Preserve, Orange County, NC, 3/31/07 |
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| Mangora genus, Durham, 7/30/05 |
Mangora
maculata, Johnston Mill Nature Preserve, Orange County, NC,
8/31/07. This may be the same species as the spider on the left. |
Mangora
maculata, Durham, NC,
8/1/07. This appears to be the same species as the spider on the
immediate left. Genus ID thanks to
Jeff Hollenbeck.
Species ID thanks to
John and Jane Balaban. |
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| Mangora genus? Eno River SP, Old Cole
Mill Road access, 8/17/05 |
Acacesia hamata
(Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
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Acacesia hamata,
Durham, 7/18/05. ID provided by
John and Jane Balaban.
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Spider, (Acacesia hamata), Penny's Bend Nature Preserve, Durham
County, NC, 9/7/07. This was a very tiny spider, a few mm long. Its
placement on the brown spot of this leaf camouflaged it effectively. |
Gea
heptagon
(Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
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| Spider (Gea heptagon), Durham, NC,
8/21/06 |
Basilica
Spiders
(Mecynogea lemniscata, Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
In contrast with the flat webs of the orchard spiders, the
webs of most of these spiders fill a three-dimensional space and no two threads
seem
to be in the same plane. They often are found in groups in contiguous
webs. Maybe they get their common name from this web structure.
They do not weave orb-shaped webs;
Willey, Johnson and Adler say that although some have argued that
they should be assigned to the Linyphiidae family on the basis of similarity of
web construction; giving greater weight to anatomical structure and behavior as critera led to their Araneidae classification.
This illustrates another problem with common names: orb-weaving is not a
universal Araneidae trait.
The two pictures on the left
(second row) suggest an aborted courtship
(Durham, 7/20/05). It took place within one of a group of complex webs
with elaborate three-dimensional structures. All webs were apparently spun
by spiders of the same species, which had the abdominal patterns pictured in the
two photos on the right.
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| Basilica
spider, Durham, NC, 7/6/09 |
Basilica Spider, dorsal view of part of the abdomen, Durham, NC, 7/20/05. |
Durham, 7/31/05. With egg
sacs. |
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| Basilica Spider, Durham, 6/30/05, wrapping up its prey. |
Basilica Spiders. The large spider approached
the smaller spider. |
Basilica Spiders. The smaller spider let the
big spider touch it with two feet for a second or two, then they quickly
separated. No accounting for taste (pun intended!) |
Unidentified orb weavers,
Araneidae family, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae
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| Another orb weaver,
upstaged by its dew-adorned web at the very beginning of the day. |
Mystery orb weaver, Durham,
10/29/05. This tiny spider was the only
live orb weaver I saw that day. |
Golden Silk Spiders and
Allies
(Nephilinae subfamily, Nephilidae family,
Araneoidea, Orbiculariae, Entelegynae, Araneomorphae)
Golden Silk Spiders
(Nephila clavipes)
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| Female
Golden Silk Spider
(Nephila clavipes), Carolina Beach State Park, New Hanover County, NC,
9/16/07. These are different views of the same spider: ventral, side
and dorsal. |
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Golden Silk Spider couple (big one is female), Carolina Beach State
Park, New Hanover County, NC, 8/4/09 |
Male Golden Silk Spider, Carolina Beach State Park, New Hanover County,
NC, 8/4/09 |
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Long-jawed Orb Weavers
(Tetragnathidae family, derived araneoids, Araneoidea,
Orbiculariae, Entelegynae, Araneomorphae)
Elongate Long-jawed Orb
Weavers (Tetragnatha elongata)
These spiders are so named because of their unusually
large chelicerae, commonly called "fangs," which contain venom-producing
glands and end in hollow spikes through which they deliver their venom.
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Elongate
Long-jawed Orb Weaver,
Durham, NC, 8/21/09 |
Elongate Long-jawed
Orb Weaver, Durham, 6/13/05.
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This same
Elongate Long-jawed Orb Weaver sought cover on a form of swamp
grass, using impressive camouflage. |
Long-jawed Orb Weavers
(Tetragnatha genus)
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Long-jawed Orb Weaver,
Jordan Lake Gameland, Chatham County, NC, 6/19/07 |
Long-jawed Orb
Weaver,
Durham, 4/28/06 |
Orchard Spiders
(Leucauge venusta)
Some very beautiful small spiders are
easily overlooked. Orchard Spiders are about 3 mm long (excluding legs) at
maturity.
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Orchard
Spider,
Carolina Beach State Park, New Hanover County, NC, 9/17/07 |
Orchard
Spider, Durham, NC, 5/27/09 |
Orchard Spider,
Audubon
Swamp Garden, Charleston County, SC, 10/11/07. |
Another
Orchard Spider,
also Audubon Swamp, 10/11/07 |
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Orchard Spider,
Goose Creek State Park, Beaufort County, SC, 9/20/08 |
Durham,
6/17/05. |
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Comb-footed Spiders
(Theridiidae family, Theridioidea, Araneoid
sheetweb weavers, Reduced pyriform clade, Derived Araneoids, Araneoidea, RTA
Clade, Entelegynae, Araneomorphae)
These spiders spin cobwebs, which humans detest and songbirds
love to use for nesting material.
American House Spiders
(Achaearanea tepidariorum)
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American House Spider
(Achaearanea tepidariorum) attacking a Marbled Orb Weaver, Johnston Mill
Nature Preserve, 7/15/06 |
American House Spider
(Achaearanea tepidariorum) with egg sac. Durham, 7/22/05 |
American House
Spider,
Durham, NC, 8/10/07 |
American House Spider
with egg sac. Durham, 6/14/05. One of the larger spiders I've seen. |
American House Spider
with prey, Durham, 7/6/05 |
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Comb-footed spider (Theridion pictipes), Johnston Mill Nature Preserve,
Orange County, NC, 5/31/07. ID thanks to
John and Jane Balaban. |
Black Widows (Latrodectus genus members) use a neurotoxic venom.
They are outdoor spiders; some are reclusive, while others appear out in the
open. It is unusual to see a male; they are much smaller and very different in appearance. These spiders are venomous at every age. It is best to be
observant.
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Adult female Black Widow
Spider, Durham, NC, 5/27/09. This spider is also shown
in the picture on the right. |
Two adult female Black Widow Spiders. The big one on
the right (maybe pregnant) was much more reclusive and had made a rare trip outside this
dark hiding place. The other disappeared after a couple of days. |
Adult female
Black Widow,
Zebulon, NC. Photo taken by and provided by Cindy Privette. |
Adult female Black Widow, Durham, NC, 7/22/09.
Note dorsal red spots on abdomen. |
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Black Widow spiderling, one of a large group near
a rock crevice on a power line cut in Durham, NC, 10/15/08. Might be a
Southern Black Widow, but not sure. It matches this
BugGuide picture of Missouri spiderlings. |
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False Black Widow
(Steatoda grossa), venomous but less dangerous than black widows. Durham, 12/30/05.
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Sheet Web Weaver and Dwarf
Spiders
(Linyphiidae Family, Linyphioids, Araneoid sheetweb
weavers, Reduced pyriform clade, Derived araneoids, Araneoidea, Orbiculariae,
Entelegynae, Araneomorphae)
All photos in the first row were taken of
members of the species Florinda coccinea,
subfamily Linyphiinae
member, according to
Wikipedia's Blacktailed Red Sheetweaver page and
Samford University's Florinda coccinea page. Levi and Levi
(2002) describe this species as yellow-colored (rather puzzling) and most
commonly found in the southeastern US.
This spider family has the most species, although its members
are very tiny and probably overlooked altogether by most people. The two
shown below are apparently the most common in Piedmont North Carolina.
Black-tailed Red
Sheetweavers (Florinda coccinea)
These spiders usually spins their webs, in the form of
horizontal sheets, near the ground in grasses.
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Black-tailed Red
Sheetweaver,
Durham, 8/6/05,
at edge of local swamp, but still deep in swamp grass. About ¼ inch
long.
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Black-tailed Red
Sheetweaver,
same location,
9/3/05. According to Patrick Moran, this is a male spider; the others
are females. The large pedipalps are the key. |
Black-tailed Red
Sheetweaver,
Durham, 7/16/05,
local swamp. Possibly the same species as at left, but maybe not as
well-fed. |
Black-tailed Red
Sheetweaver,
Johnston Mill
Nature Preserve, Orange County, NC, 9/30/06. This picture was taken on
a cool morning when the dew was still on its web. |
Bowl-and-doily
Spiders (Frontinella communis)
These
spiders have typically showed up in the branches of small trees. Their
webs have two parts, one that is bowl-shaped and another below it that is
disk-shaped and looks like a doily. When prey lands on the "doily," the
spider leaps down from the "bowl" and attacks it.
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Female Bowl-and-doily Spider, Johnston Mill Nature Preserve, Orange
County, NC, 4/18/09 |
Female
Bowl and Doily Spider,
Mason Farm Biological Reserve, 11/21/07 |
Female
Bowl and Doily Spider,
Eno River State Park, 10/18/07 |
Male
Bowl and Doily Spider,
Mason Farm Biological Reserve, Orange
County, NC, 8/12/08 |
Filmy Dome Spiders
(Prolinyphia marginata)
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Filmy Dome Spider, Johnston Mill Nature Preserve, Orange County, NC,
8/18/06. ID thanks to John Robinson, confirmed by
Samford University's relevant page.
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Filmy
Dome Spider, Johnston Mill Nature Preserve, Orange County, 7/30/09 |
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Ghost Spiders
(Anyphaenidae family, Entelegynae, Araneomorphae)
Funnel Web
Spiders
(Agelenidae family, Other Amaurobioids, RTA Clade,
Entelegynae, Araneomorphae)
These spiders have a two-part web consisting of a horizontal
sheet which catches prey and a funnel-shaped tunnel in which the spider hides.
In this way, these harmless (to humans) spiders bear a superficial resemblance
to the highly venomous Sydney (Australia) Funnel-web Spiders, members of the
Hexathelidae family, suborder Mygalomorphae. This is a classic
example of how common names can cause serious confusion, not the least because
web shape is a relatively unimportant spider classification factor.
On our deck, funnel web spiders
spin horizontal webs that attach at one end to large round lights, curving
partially around them across to the "funnel" end of the web. Moths drawn
to the light find themselves trapped in the web because the web partially blocks
their departure from the light. The web isn't sticky and sometimes moths
find their way out. Yet sometimes the spider is faster, jumping up to bite
a flying moth, which lands on the web. Since these lights are such a
recent development in natural history, these spiders' strategic use of them
looks a lot like human-like engineering reasoning. But spiders don't even
have real brains: a single ganglion (a bundle of nerves) serves instead.
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| Funnel Web Spider,
emerging from the "funnel" part of its web, Piedmont Wildlife
Center, Durham, NC, 5/8/10 |
Funnel web spider (probably
Agelenolopsis genus), Johnston Mill, Orange County, NC, 7/1/06 |
Funnel web spider, Boone, NC, 8/7/06 |
Funnel web spider with moth prey, Durham, NC, 9/24/08.
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Funnel web spider?
Eno River State
Park, Old Cole Mill Road access, 5/10/07, ventral view. The light color
suggests that it's a recent molt. |
Nursery Web
Spiders and Fishing Spiders
(Pisauridae family, Lycosoidea, RTA Clade,
Entelegynae, Araneomorphae)
These spiders are noted both for their ability to walk on
water and for their spiderlings, which stay together until relatively large.
Their only use of silk is to build their "nursery webs."
Six-spotted Fishing Spiders
(Dolomedes triton)
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Six-spotted Fishing Spider (Dolomedes
triton) with sea snail, Durham, 5/03/05 |
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| Six-spotted Fishing Spider,
NC Botanical Garden, 8/17/06.
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Six-spotted Fishing Spider,
Durham, NC, 6/9/05 |
Dark Fishing Spiders
(Dolomedes tenebrosus)
These spiders can seem to be wolf spiders to those with poor
vision. But they are more likely than wolf spiders to be found in aquatic
habitats.
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| Dark Fishing Spider
(Dolomedes tenebrosus), with egg sac, Durham,
4/25/08 |
Dark Fishing Spider
(Dolomedes tenebrosus), Durham, 6/23/05
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Dark Fishing Spider,
Occoneechee Mountain Natural Area, Orange County,
NC, 4/9/06. This spider, about ¼ inch long, was following around a
brown worker ant subduing a black winged ant. |
Other Dolomedes genus spiders
Some of these spiders can get very big. But I've
never seen any of the big ones personally.
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Big fishing spider,
a lake in Illinois, 7/9/07, taken by Danielle
Lessing. © 2007 Danielle Lessing |
This picture gives a better picture of
how big this spider was. Ms. Lessing said it seemed to be five inches
across. |
Nursery Web Spiders
(Pisaurina mira)
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Nursery Web Spider,
Durham, 6/22/05. |
Nursery Web Spider,
Durham, NC, 8/14/08 |
I'm guessing these are
Nursery Web
spiderlings. Eno River SP, Old Cole Mill Road access, Orange County,
NC, 9/16/05. |
Wolf Spiders
(Lycosidae family, Lycosoidea, RTA Clade,
Entelegynae, Araneomorphae)
These are very big spiders at maturity. Although they
are not known to administer venomous bites, I once had a close call with a
full-size Wolf Spider: it had found its way into an empty shoe and surprised me
with a painful nip that left deep indentations on my heavily callused toe when I
put the shoe on.
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Rabid Wolf Spider
(Rabidosa rabida), Durham (edge of swamp),
10/24/05. This spider was about ½ inch long and very timid, may be
immature. |
Wolf spider, Durham, 10/28/05 |
This large wolf spider was carrying a
bunch of spiderlings on her abdomen at Johnston Mill, Orange County, NC,
7/15/06. |
Giant Wolf Spider
(Hogna carolinensis), Durham, 3/22/06. This
relatively large spider was scrambling around
on the edge of a creek, sometimes in the water, sometimes on leaves or
blades of grass. |
Lynx Spiders
(Oxyopidae family, Lycosoidea, RTA Clade,
Entelegynae, Araneomorphae)
Green Lynx Spider (Peucetia viridans)
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Green Lynx Spider
(Peucetia
viridans), NC Botanical Garden, Orange County, NC, 7/17/09 |
Green Lynx Spider(Peucetia
viridans),
Durham, 7/16/05. This one showed up in my local marsh. |
Green Lynx Spider
(Peucetia
viridans),
Indian Creek Trail, a Jordan Lake Game Land,
Chatham County, NC, 9/3/06 |
Striped Lynx Spider (Oxyopes salticus)
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Striped Lynx Spider (Oxyopes salticus), with small green prey,
Boone, NC, 8/6/08 |
Striped Lynx Spider, with large black prey, Durham, 8/16/08. |
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Crab
Spiders
(Thomisidae family, Dionycha, RTA Clade,
Entelegynae, Araneomorphae)
These spiders don't spin webs; instead, they wait in ambush
for their prey.
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This female
Smooth Flower Spider
or White-banded Crab Spider
(Misumenoides formosipes) was apparently eating a fly on Siler's Bald in
Macon County, NC, on 8/10/05. |
Female
Smooth Flower Spider
or
White-banded Crab Spider
(Misumenoides
formosipes) with Eastern Tailed Blue prey, Durham, NC, 9/28/08 |
Smooth Flower Spider
or
White-banded Crab Spider,
North Carolina Museum
of Art outdoor trail, Wake County, NC, 5/8/07, with grasshopper prey. |
Flower Spider or White-banded Crab Spider (Misumenoides
formosipes, Thomisidae family), on a Little-leaf Sensitive Briar flower,
Riverbend Park, Catawba County, NC, 9/24/09 |
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Crab Spider,
Durham, 8/13/05.
Apparently lying in wait
for prey. |
Tiny crab spider
(with prey), Indian Creek Trail, a Jordan Lake Game Land, Chatham
County, NC, 7/7/06. |
Female
Flower Spider
(Misumenops asperatus), Mason Farm Biological
Reserve, Orange County, NC, 10/2/05.
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Crab Spider, Durham, 8/17/06. Showed up on door to our deck. |
Crab spider
(Xysticus genus). Durham (swamp in my neighborhood), 9/22/05. |
Crab spider
(Xysticus genus), Durham,
10/1/05. Also found in local swamp. This spider was about ⅛ inch long. |
Crab spider,
Durham, NC, 5/17/08 |
Crab
spider, Mason Farm Biological
Reserve, Orange County, NC, 8/12/08 |
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| Crab Spider,
Wannamaker County Park, Charleston County, SC,
3/28/06 |
Crab spider,
White Pines Nature Preserve, Chatham County, NC, 11/11/06 |
Crab spider with ant prey, Durham, NC, 5/27/09 |
Crab Spider, Bassaniana genus maybe, Southern Village, Chapel Hill, NC,
5/7/09 |
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| Crab spider, Eno River SP, Old
Cole Mill Road access, Orange County, NC, 6/23/05. This one showed up
on my car. |
Mystery crab spider, Penny's Bend, 8/23/05 |
Running Crab Spiders (Philodromidae family,
Dionycha, RTA Clade,
Entelegynae, Araneomorphae)
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Running crab spider (Philodromus genus perhaps), Durham, NC, date
unknown. ID thanks to
John R. Maxwell. |
Metallic Crab Spider (Philodromus maxi) spider, Johnston Mill Nature Preserve, Orange County, NC,
6/9/07 |
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Ground Spiders
(Gnaphosidae family, Gnaphosoidea, Dionycha, RTA
Clade, Entelegynae, Araneomorphae)
These are mainly nocturnal spiders that hide under rocks
during the day, but every now and then we get a glimpse of them scurrying across
a walking path. They may be often overlooked because they look like
ants from a distance. However, they should not be confused with the
"ant-mimic" spiders of Corinnidae, which look like brown ants up close.
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Gnaphosa muscorum?
Durham, 6/9/05. You can see only six legs, but
this small (magnified) spider apparently lost some. |
Gnaphosa muscorum?Durham,
6/16/05. The abdomens have different colors and different numbers of
spots. |
Ground spider (Sergiolus capulatus),
Durham, 2/17/06 |
Ground spider (Cesonia bilineata),
Durham, NC, 6/13/06. The large abdomen suggests that this is a pregnant
female. |
Ant Mimic Spiders (Corinnidae family,
Gnaphosoidea,
Dionycha, RTA Clade, Entelegynae, Araneomorphae)
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| Ground sac
spider
(Castaneira longipalpa), American Tobacco Trail (miles 0-2), Durham, NC,
5/2/10 |
Ground sac spider (Castianeira longipalpa),
Southpoint Swamp, Durham, NC, 9/26/07, a moderate-sized spider.
Thanks to
Lynette Schimming
for genus ID.
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Ground sac spider
(Castaneira longipalpa), Durham, NC, 7/7/08 |
Corinnid spider (Castaneira longipalpa), Hanging Rock State Park, Stokes
County, NC, 6/18/09 |
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Red-spotted Ant Mimic (Castianeira
descripta),
Durham, NC, 11/20/07 |
Red-spotted Ant Mimic Spider,
Durham, 5/18/08 |
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Jumping
Spiders
(Salticidae family, Dionycha, RTA Clade,
Entelegynae, Araneomorphae)
Jumping spiders seem to have excellent vision and quick
response times. One thing that's obvious is that they can make big moves,
such as 180° complete turnabouts, almost instantaneously, and don't need to have
a completely horizontal surface to do it, either! They are pounce on prey rather than using webs to catch it.
Lyssomaninae subfamily
Lyssomanes genus
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Young
Magnolia Green
Jumping Spider (Lyssomanes
viridis, subfamily Lyssomaninae),
outdoor trail at the North Carolina Museum
of Art, Wake County, NC, 5/8/07 |
Adult Magnolia Green Jumping Spider (Lyssomanes viridis),
which showed up on my hat at the Raulston Arboretum, Raleigh, Wake
County, NC, 5/22/09 |
Dendryphantinae subfamily
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| Three
views of what may be a Metaphidippus genus jumping spider. Durham, NC, 5/23/09.
Am confident of the subfamily classification. |
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Jumping spider (Metaphidippus genus?), Eno River State Park, Few Ford Access, 10/18/07 |
Jumping spider (Metaphidippus genus?), Durham, 6/22/05. |
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Paraphidippus genus
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| Jumping spider (Paraphidippus
aurantius), Mason Farm Biological Reserve (area north of the creek),
4/28/07 |
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Phidippus genus
Phidippus clarus
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Jumping spider (Phidippus clarus, maybe), Durham, NC, 6/15/08 |
Jumping spider (Phidippus clarus) with prey, Durham, NC, 5/29/08 |
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Phidippus whitmani
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Male jumping spider (Phidippus whitmani), at Abbott Lake, Peaks of Otter Recreational Area,
Bedford County, VA, 7/9/09 |
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Phidippus audax
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Daring Jumping Spider (Phidippus audax), displaying green chelicerae, Durham,
NC, 10/10/09 |
Daring Jumping Spider
(Phidippus audax), Durham, 4/16/06 |
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Phidippus mystaceous
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| Jumping
spider (Phidippus mystaceous), Occoneechee
Mountain, October 29, 2009 |
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Pelegrina genus
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| Peppered Jumper (Pelegrina
galathea), Durham, NC, 5/8/08 |
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Marpissinae subfamily
Platycryptus genus
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Tree Trunk Spider
(Platycryptus
genus), Durham, 9/19/05. |
Jumping spider (Platycryptus
undatus), Durham, 8/14/07. This was a relatively large spider, at least
13 mm long and very lively. |
Jumping Spider
(Platycryptus undatus),Durham, NC, 7/13/06. It is missing its left
foreleg. |
Jumping
spider (Platycryptus
genus), Durham, 6/20/05 |
Maevia genus
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Dimorphic Jumper
(Maevia inclemens), Eno River State Park, Old Cole Mill Road access,
Orange County, NC, 7/27/07 |
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Pelleninae subfamily
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| Colorful Creek Bank
Spider (Habronattus decorus,
Pelleninae subfamily),
Mason Farm Biological Reserve, Orange County, NC, 4/14/06. About ⅛ inch
long. |
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Thiodininae subfamily
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Jumping spider (Thiodina sylvana), about 5 mm long. Durham, NC, 10/3/09 |
Unidentified Jumping Spiders
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| Jumping spider with prey, Dare County,
NC, 10/5/05. |
Jumping spider, Eno River
SP, Old Cole Mill Road access, 8/17/05. Look at all those eyes! In the
picture on the right, the spider faced toward me, but maybe was looking
at me the whole time! |
Spider Exuviae
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Spider exuvia, Durham, NC, 7/25/09 |
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Mystery Spiders: unknown or
uncertain/unconfirmable taxonomic classifications
From time to time spiders present ID problems and
photos are shown here. See if you can figure out what kinds of spiders
these are. If you know the answer,
contact us.
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| Jumping spider with prey, possibly a
winged termite. Penny's Bend Nature Preserve, Durham County, NC,
4/20/07. |
Phidippus
genus?Boone, Watauga County, 8/29/05 |
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Spider, Durham, 7/31/05. Another tiny, hard-to-see spider. Kevin
Pfeiffer thinks that its "tightly balled pedipalps" and "prickly"
surface suggest that it's a male orb weaver. |
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| Probably a running
crab
spider (Philodromus dispar)Durham, 7/28/05. This tiny spider
showed up at the swamp in my neighborhood. |
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This little spider was busily spinning a web, apparently unhindered by
its having only three full-size legs and maybe one other in the process
of growing back. Eno River SP, Old Cole Mill Road access, 9/16/05. |
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| This looks like a marsh crab spider,
found on the shoulder of a road going over Lake Crabtree, Wake County,
NC, 10/13/05. Maybe an Araniella genus member? |
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Generally speaking, spider taxonomy is based on
anatomical structure characteristics and nature of predatory behavior, e.g.,
whether the spider catches prey in a web or captures it directly, with web shape
a lesser consideration. This is based on the theoretical heredity pattern
on certain traits during the process of evolution. Nevertheless, certain
families have misleading common names, e.g., "orb weavers."
© Copyright 2005-2010 by Dorothy E. Pugh. All
photos copyrighted except those by other photographers.