Search Results - Field Guide

Showing 1 - 10 of 22 results
Media
Marbled orbweaver spider in web
Species Types
Scientific Name
Araneus spp.
Description
Missouri's Araneus spiders, called angulate and roundshouldered orbweavers, can be hard to identify to species. Most have camouflage patterns, and they all make characteristic, delicate, wheel-shaped webs to catch prey.
Media
Female spider wasp grasping and dragging body of sac spider
Species Types
Scientific Name
Auplopus spp.
Description
There are 10 species of spider wasps in genus Auplopus in North America north of Mexico. They often snip off the legs of the spiders they capture, which makes them easier to move around.
Media
Image of a black widow
Species Types
Scientific Name
Latrodectus mactans and Latrodectus variolus
Description
The glossy, black-bodied female black widow spider has distinctive red spots on the underside of the abdomen. Only the female can inflict a potentially dangerous bite. The small, seldom-seen male is harmless.
Media
Photo of a bold jumping spider.
Species Types
Scientific Name
Phidippus audax
Description
The bold jumper, or white-spotted jumping spider, is fuzzy, makes jerky movements, jumps surprisingly long distances, and doesn't build webs. It usually has a black body with white, orange, or reddish spots on the abdomen.
Media
Closeup of brown recluse spider on floor.
Species Types
Scientific Name
Loxosceles reclusa
Description
The brown recluse is a spider whose venomous bite may be medically significant to humans, though a bite is almost never fatal. Brown recluses are most commonly encountered in houses, where they occupy little-used drawers, closets, and other small hiding spaces.
Media
Photo of a common house spider, egg sac, and web
Species Types
Scientific Name
Parasteatoda tepidariorum (syn. Achaeranea tepidariorum)
Description
You probably have at least a few common house spiders in your garage. Take heart: they are harmless and they eat many pest insects.
Media
Photo of a Harvestman, viewed from above
Species Types
Scientific Name
About 6,500 species have been named so far, worldwide.
Description
Daddy longlegs, or harvestmen, are familiar Missouri animals. They are not spiders, but opilionids. Unlike spiders, they have a fused body form and lack silk and venom glands.
Media
Photo of a dotted wolf spider
Species Types
Scientific Name
Rabidosa punctulata
Description
The dotted wolf spider has a solid brown stripe running down the middle of the abdomen, seen from above. Like other wolf spiders, females have strong maternal instincts, carrying their spiderlings around on their back until they can be on their own.
Media
Long-legged wasp grasping a wolf spider while clinging to house siding
Species Types
Scientific Name
Entypus aratus, E. unifasciatus, E. fulvicornis, and others
Description
Spider wasps in genus Entypus are bluish black and usually have some amount of amber color on their dark, smoky wings. Some species have bright yellow antennae.
Media
filmy dome spider
Species Types
Scientific Name
Neriene radiata (formerly Prolinyphia marginata)
Description
The filmy dome spider is one of the most abundant woodland spiders in Missouri. Although the spider is tiny, its snare web, which looks like an upside-down silk bowl, is conspicuous throughout the year.