Which body features of female caddisflies can help scientists classify species?

Scientists classify caddisfly species by examining specific anatomical features. While male genitalia have historically been the primary focus for identification, the study of female genitalia is of increasing taxonomic significance.1

In addition to genital structures, researchers utilize internal adult characters to distinguish between species. These include internal head skeletal structures, which are collectively known as the tentorium. Recent scientific work has emphasized that incorporating these female and internal characteristics is essential for further progress in the classification of these insects.12