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Issue: Vol. 4319 No. 1: 11 Sept. 2017
Type: Article
Published: 2017-09-11
DOI: 10.11646/zootaxa.4319.1.9
Page range: 169–176
Abstract views: 83
PDF downloaded: 3

A new species of Crenitulus Winters, 1926 (Coleoptera: Hydrophilidae: Chaetarthrinae: Anacaenini) from northern South America

Divisão de Entomologia (DIENT), Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067-375, Manaus, AM, Brazil.
Divisão de Entomologia (DIENT), Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067-375, Manaus, AM, Brazil.
Divisão de Entomologia (DIENT), Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo 2936, CEP 69067-375, Manaus, AM, Brazil.
Coleoptera aquatic insects water scavenger beetles Neotropical region Amazon

Abstract

A new species of the genus Crenitulus Winters, 1926 (Hydrophilidae: Chaetarthrinae: Anacaenini), C. clarksoni sp. nov. is described from northern Brazil and Guyana. The new species can be distinguished from other species of Crenitulus by the following combination of characteristics: body size 1.6–1.8 mm in length; clypeus, frons, pronotum and elytra black, pronotum with distinctly demarcated yellow lateral margins; presence of dorsal pubescence and longitudinal rows of coarser punctures on lateral margins of elytra; apical antennomere 1.5 times longer than wide and 2.5 times longer than antennomere 8; maxillary palpi 2.5 times longer than wide and 2.2 times longer than palpomere 3; mesoventrite nearly flat; procoxae with strong, large spines; femoral pubescence confined to anterior margin and proximal portion; by phallobase as long as parameres; by parameres narrowed apically with the apex rounded and by the median lobe slightly shorter than parameres with corona in subapical position.

 

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