A New, Sexually Dimorphic Species of Cylloepus Erichson from Brazil (Coleoptera: Elmidae)

Publication Type:Journal Article
Year of Publication:2021
Authors:W. D. Shepard, Sites, R. W., Rodrigues, H. D. D.
Journal:The Coleopterists Bulletin
Volume:75
Issue:1
Pagination:270–274
Keywords:Byrrhoidea, Neotropical, riffle beetle, taxonomy
Abstract:

Cylloepus dimorphus Shepard, Sites, and Rodrigues, new species (Elmidae) is described from Brazil with a sexually dimorphic abdominal ventrite 5. Males have a protruding lobe on each side of the apex of ventrite 5. Females lack the lobes and are not distinguishable from congeners.

DOI:10.1649/0010-065X-75.1.270
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith