Descriptions of Nearctic caddis flies (Trichoptera)
Subtitle: with special reference to the Illinois species
By: Herbert H. Ross.
Contributors: Illinois. Natural History Survey Division.
Series: Bulletin / Natural History Survey -- v. 21, art. 4
Publisher: Dept. of Registration and Education, Division of the Natural History Survey
Published: 1938
Place of publication: Urbana, Ill
Language: eng
Number of pages: 183
Subjects: Caddisflies.