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Issue: Vol. 2868 No. 1: 5 May. 2011
Type: Articles
Published: 2011-05-05
DOI: 10.11646/zootaxa.2868.1.3
Page range: 62–68
Abstract views: 47
PDF downloaded: 3

Notes on the taxonomic identity of Bystus hirtulus (Kirsch) and transfer from Endomychidae to Coccinellidae (Coleoptera: Cucujoidea), with designation of a lectotype for Alexia hirtula Kirsch

Department of Entomology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC-165, Washington, DC 20013–7012, USA
Systematic Entomology Lab (SEL), Plant Sciences Institute, Agricultural Research Service, USDA, c/o National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC–168, Washington, DC 20013–7012, USA
Coleoptera Endomychidae Coccinellidae Anamorphinae Microweiseinae Cryptognathini new combinations

Abstract

During an examination of type material of the New World endomychid genus Bystus Guérin-Méneville (Anamorphinae), the type series of Alexia hirtula Kirsch from Peru was found to contain a mixture of different taxa, none of which belong to the genus Bystus, the subfamily Anamorphinae, or even the family Endomychidae. Alexia hirtula is transferred to Delphastus Casey (Coccinellidae: Microweiseinae: Serangiini), establishing the new combination, Delphastus hirtulus (Kirsch), and a lectotype is designated. Of the three paralectotypes, one appears to be conspecific with the lectotype, one is identified as an undescribed species of Microscymnus Champion (Coccinellidae: Cryptognathini), and one, a partial specimen lacking the head, pronotum, and one elytron, is identified as a species of Leiodidae in the tribe Scotocryptini, probably Aglyptinus Cockerell. A diagnosis and redescription of D. hirtulus is provided, and Gordon’s (1994) key to Delphastus is modified to accommodate the newly transferred species. The historical classification of D. hirtulus is discussed along with characters justifying its revised placement.

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