California Department of Fish and Wildlife
Aquatic Biological Assement

California Digital Reference Collection Home | Family Level | Level 1 Taxonomy | Level 2 Taxonomy

Jump to:

Ephemeroptera Odonata Plecoptera Hemiptera Megaloptera Neuroptera Trichoptera Lepidoptera Coleoptera Diptera Non-Insects

Corixidae Level 1 Level 2

Corixidae

 

Key Characters

Water boatmen; scavengers and predators, largest family of aquatic/semi-aquatic Heteroptera. Ventrally keeled, dorsally flattened, beak triangular, short, and unsegmented. Oar-like hind legs, front legs with single tarsal segment scooplike or fringed with stiff setae.
Tolerance 8-10
Distribution CA, OR, WA, NV, AZ, Baja