Field Guide

Land Invertebrates

Showing 1 - 6 of 6 results
Photo of a spotted fishing spider and several water springtails at the surface of shallow water
Spotted Fishing Spider
Dolomedes triton
The spotted fishing spider lives around ponds, slow-moving streams, swampy areas, and other damp places. It can run across the surface of water much like water striders and will dive for prey, including small tadpoles or aquatic insects.
Photo of an orchard orbweaver with a black background
Orchard Orbweaver
Leucauge venusta
The orchard orbweaver is a small, colorful, greenish, delicate spider that makes circular webs in low bushes and damp woodlands. It typically hangs in the middle of its web, its back to the ground.
Image of a female Argiope garden spider.
Black-and-Yellow Garden Spider
Argiope aurantia
The black-and-yellow garden spider is large but harmless. It sets up large, circular webs in gardens and grasslands. Lucky gardeners can host this remarkable pest exterminator all season long.
Photo of a triangle orbweaver, or arrowhead spider
Arrowhead Spider (Triangle Orbweaver)
Verrucosa arenata
In late summer and fall, woodland hikers can count on walking into the arrowhead spider's web. These webs are delicate circles that help the spider snare tiny flying insects.
White micrathena, side view
Spiny Orbweavers (Micrathena Spiders)
Micrathena spp.
Missouri has three species of spiny orbweavers in genus Micrathena. The webs of these woodland spiders are often run into by hikers!
banded or white backed garden spider in web
Banded Garden Spider
Argiope trifasciata
The banded, or white-backed garden spider is slightly smaller than the black-and-yellow garden spider and has a pointier hind end. The abdomen is patterned with many thin silver and yellow transverse lines and thicker black, spotty lines.
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.