Redescriptions and lectotype designations for two neotropical Elminae (Coleoptera: Elmidae) 

Abstract

Two Elminae, Macrelmis germaini (Grouvelle, 1896) and Cylloepus reitteri Grouvelle, 1889 from Grouvelle's Collection in the Museum National d'Histoire Naturelle, Paris are reviewed, and their lectotypes designated. Habitus photographs and illustrations of aedeagi for both species are also included.

Notes on Stenhelmoides and description of the true male genitalia of S. strictifrons Grouvelle, 1908 (Coleoptera: Elmidae)

“…These are the first records for Stenhelmoides in the Brazilian states of Amapá, Bahia, Minas Gerais, Roraima and Tocantins. For the first time, habitus photographs of type specimens of the following species are provided: Stenhelmoides grandis Spangler and Perkins, 1989, Stenhelmoides grouvellei Pic, 1923, Stenhelmoides guyanensis Grouvelle, 1908, S. strictifrons Grouvelle, 1908, and Stenhelmoides submaculus Hinton, 1937 Based on examination of the type series housed in the collection of the Muséum National d'Histoire Naturelle, Paris and following information provided in Spangler and Perkins (1989), Monte and Mascagni (2016), and Polizei and Casari (2019), we recognized one type specimen of S. guyanensis as a paralectotype and several paralectotypes of S. grouvellei.…”