Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
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: 123
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.

 

References

  1. Benetti, C.J. & Hamada, N. (2003) Fauna de coleópteros aquáticos (Insecta: Coleoptera) na Amazônia Central, Brasil. Acta Amazonica, 33 (4), 701–710.
    https://doi.org/10.1590/S0044-59672003000400015

    Fikáček, M. & Vondráček, D. (2014) A review of Pseudorygmodus (Coleoptera: Hydrophilidae), with notes on the classi cation of the Anacaenini and on distribution of genera endemic to southern South America. Acta entomologica musei nationalis pragae, 54 (2), 479–514.

    Hansen, M. (1999) Hydrophiloidea (s. str.) (Coleoptera). World Catalogue of Insects, 2, 1–416.

    Komarek, A. (2004) Taxonomic Revision of Anacaena Thomson, 1859. I. Afrotropical Species (Coleoptera: Hydrophilidae). Koleopterologische Rundschau, 74, 303–349.

    Komarek, A. (2005) Taxonomic revision of Anacaena THOMSON, 1859. II. Neotropical species (Coleoptera: Hydrophilidae). Koleopterologische Rundschau, 75, 253-301.

    Orchymont, A. (1933) Contribution à lʼétude des Palpicornia VIII. Bulletin et Annales de la Société Entomologique de Belgique, 73, 271–314.

    Short, A.E.Z. & Fikácek, M. (2011) World catalogue of the Hydrophiloidea (Coleoptera): additions and corrections II (2006–2010). Acta Entomologica Musei Nationalis Pragae, 51 (1), 83–122.

    Short, A.E.Z. & Fikácek, M. (2013) Molecular phylogeny, evolution and classification of the Hydrophilidae (Coleoptera). Systematic Entomology, 38 (4), 723–752.
    https://doi.org/10.1111/syen.12024

    Short, A.E.Z. & Hebauer, F. (2006) World Catalogue of Hydrophiloidea—additions and corrections, I (1999–2005). Koleoptero logische Rundschau, 76, 315–359.

    Winters, F.D. (1926) Notes on the Hydrobiini (Coleoptera-Hydrophilidae) of boreal America. Pan-Pacific Entomologist, 3, 49–58.