Field Guide

Land Invertebrates

Showing 11 - 14 of 14 results
Marbled orbweaver spider in web
Marbled Orbweaver
Araneus marmoreus
The marbled orbweaver is sometimes called the “pumpkin spider” because its rounded abdomen is sometimes bright orange. The color and markings can vary greatly.
Photo of a northern crab spider
Northern Crab Spider
Mecaphesa asperata
The northern crab spider has many spiny hairs covering the top surfaces of the carapace, abdomen, and legs, and it has usually has greenish-yellow or yellow-brown markings.
Photo of a swift crab spider, female, from above.
Swift Crab Spider
Mecaphesa celer (formerly Misumenops celer)
The swift crab spider has many spiny hairs covering the top of its body and legs, and it often has a light pinkish-tan cast.
Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background
Barn Spider
Neoscona crucifera
A widespread species, the barn spider commonly builds its webs in woods and on the eaves of barns, houses, and similar structures.
See Also
Photo of a Yellow-Collared Scape Moth
Yellow-Collared Scape Moth
Cisseps fulvicollis
The yellow-collared scape moth is more often “orange-collared.” And whether you think it looks more like a firefly or a wasp, it’s still a moth!
image of Plume Moth on blade of grass
Plume Moths
Nearly 150 species in North America north of Mexico
Slim, delicate plume moths are instantly recognizable by their T-shaped silhouette, long legs, and muted shades of tan and brown. It can be hard to separate the various species.
Photo of an Isabella Tiger Moth
Isabella Tiger Moth (Woolly Bear; Woolly Worm)
Pyrrharctia isabella
Not many people know the adult Isabella tiger moth when they see one, but we’re all acquainted with its caterpillar, the woolly worm, or woolly bear.

About Land Invertebrates in Missouri

Invertebrates are animals without backbones, including earthworms, slugs, snails, and arthropods. Arthropods—invertebrates with “jointed legs” — are a group of invertebrates that includes crayfish, shrimp, millipedes, centipedes, mites, spiders, and insects. There may be as many as 10 million species of insects alive on earth today, and they probably constitute more than 90 percent all animal species.