Illinois Spiders

              Family Agelenidae barn funnel weaver Tegenaria domestica
Family Anyphaenidae garden ghost spider Hibana gracilis
Family Araneidae yellow garden spider Argiope aurantia
arrowshaped micrathena Micrathena sagittata
Family Dysderidae wood louse eater Dysdera crocata
Family Lycosidae wolf spider Schizocosa avida
Family Miturgidae longlegged sac spider Cheiracanthium mildei
Family Pholcidae shortbodied cellar spider Spermophora senoculata
Family Pisauridae sixspotted fishing spider Dolomedes triton
Family Salticidae Pike slender jumper Marpissa pikei
bold jumper Phidippus audax
jumping spider Phidippus clarus
jumping spider Phidippus mystaceus
zebra jumper Salticus scenicus
Pike slender jumper Marpissa pikei
Family Sicariidae
(formerly Loxoscelidae) brown recluse Loxosceles reclusa
Family Tetragnathidae longjawed orbweaver Tetragnatha guatemalensis
Family Theridiidae common house spider Achaearanea tepidariorum
northern black widow Latrodectus variolus
false widow Steatoda triangulosa
Family Thomisidae goldenrod crab spider Misumena vatia
whitebanded crab spider Misumenoides formosipes
celer crab spider Misumenops celer
crab spider Misumenops oblongus
crab spider Xysticus auctificus
crab spider Xysticus ferox
This poster made possible by:
Illinois Department of Natural Resources
Division of Education
Field Museum of Natural History
Illinois Wildlife Preservation Fund
Assistance provided by:
Dr. Petra Sierwald, Field Museum of Natural History
Funding for this project was made possible in part by
contributions to the Illinois Wildlife Preservation Fund.
Species List
Spiders are not
represented in actual
size nor in correct
proportion to other
species.
All photos © Hank Guarisco.
Spiders belong to a large animal group, the arthropods, all of which have
jointed legs and an exoskeleton. Other arthropods include insects,
millipedes, centipedes, ticks, harvestmen, scorpions and crustaceans. The
arachnid group of arthropods, composed of the spiders, scorpions, harvestmen
and ticks, all have eight legs and some of them have book lungs. Spiders are
unique, though, in having spinnerets at the end of their abdomen. Spiders also
have complex reproductive structures. More than 630 species of spiders have
been identified in Illinois so far. Spiders are found in nearly all Illinois habitats,
even on and sometimes in water, and are important predators of insects.
FAMILY THOMISIDAE
crab spider Xysticus auctificus
FAMILY THOMISIDAE
goldenrod crab spider Misumena vatia
FAMILY LYCOSIDAE
wolf spider Schizocosa avida
I l l i n o i s
SPIDERS FAMILY AGELENIDAE
barn funnel weaver Tegenaria domestica
FAMILY SALTICIDAE
jumping spider Phidippus mystaceus
FAMILY ARANEIDAE
yellow garden spider Argiope aurantia
FAMILY THERIDIIDAE
common house spider Achaearanea tepidariorum
FAMILY ARANEIDAE
arrowshaped micrathena Micrathena sagittata
FAMILY SALTICIDAE
bold jumper Phidippus audax
FAMILY SICARIIDAE (formerly Loxoscelidae)
brown recluse Loxosceles reclusa
FAMILY SALTICIDAE
zebra jumper Salticus scenicus
FAMILY DYSDERIDAE
wood louse eater Dysdera crocata
FAMILY THERIDIIDAE
false widow Steatoda triangulosa
FAMILY ANYPHAENIDAE
garden ghost spider Hibana gracilis
FAMILY MITURGIDAE
longlegged sac spider Cheiracanthium mildei
FAMILY THOMISIDAE
crab spider Xysticus ferox
FAMILY TETRAGNATHIDAE
longjawed orbweaver Tetragnatha guatemalensis
FAMILY THOMISIDAE
whitebanded crab spider Misumenoides formosipes
FAMILY PISAURIDAE
sixspotted fishing spider Dolomedes triton
FAMILY THOMISIDAE
crab spider Misumenops oblongus
FAMILY PHOLCIDAE
shortbodied cellar spider Spermophora senoculata
FAMILY SALTICIDAE
Pike slender jumper Marpissa pikei
FAMILY THOMISIDAE
celer crab spider Misumenops celer
FAMILY SALTICIDAE
jumping spider Phidippus clarus
FAMILY THERIDIIDAE
northern black widow Latrodectus variolus
male
* Text words in bold are defined in the glossary.
female