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

Caenidae Level 1 Level 2

Caenidae

 

Key Characters

Quadrate operculate gills on segments 2 not fused medially, gills on segments 3-6 with fringed margins. Mesonotum unlike Neoephemeridae. Hind wing pads absent.

Tolerance 7
Distribution CA, OR, WA, AZ, Baja