Wd. Shepard, AN ANNOTATED CHECKLIST OF THE AQUATIC AND SEMIAQUATIC DRYOPOID COLEOPTERA OF CALIFORNIA, The Pan-Pacific entomologist, 69(1), 1993, pp. 1-11
All the species of aquatic and semiaquatic dryopoid Coleoptera known t
o occur in California are listed. Genera with identification problems
and undescribed species are indicated. Factors that might influence th
e collection of species, such as ecological preferences and/or annual
occurrences of certain life stages, are cited.