(Coleoptera: Dytiscidae)
Vol. 2
Frank N. Young Jr.
1981
Abstract
Four described and 7 new species of the Desmopachria convexa-grana group are characterized and discussed. All are remarkably similar on superficial examination, but the male external genitalia are distinct. All are distinguishable from other members of Desmopachria (s. str.) by the leaf-like spurs on the parameres of the male external genitalia. New species described are aspera (Florida), cenchramis (Florida), defloccata (Texas, Mexico), isthmia (Panama and Canal Zone), laesslei (Jamaica), lewisi (Jamaica), and glabella (Cuba). A key and illustrations of male genitalia are given to aid in identification.