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

Chironomidae Level 1 Level 2



Key Characters

"Midges" or "bloodworms" (ones w/ hemoglobin). Found everwhere, usually add 50% to the species diversity of any aquatic system. Elongate, C-shaped, and cylindrical. Prolegs w/ hooks on prothoracic & last abdominal segments.

Tolerance highly variable, from 0-10
Distribution CA, OR, WA, NV, AZ