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Issue: Vol. 2575 No. 1: 24 Aug. 2010
Type: Articles
Published: 2010-08-24
DOI: 10.11646/zootaxa.2575.1.3
Page range: 49–62
Abstract views: 37
PDF downloaded: 3

Description of two new species of Hypselotropis Jekel with a revised key and phylogenetic reanalysis of the genus (Coleoptera, Anthribidae, Anthribinae)

Laboratório de Entomologia, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Rio de Janeiro – RJ, 21941-971, Brazil
Laboratório de Entomologia, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68044, Rio de Janeiro – RJ, 21941-971, Brazil
Coleoptera Biogeography cladistics fungus weevils Neotropical systematics

Abstract

A recent study of specimens in the Muséum National d’Histoire Naturelle, Paris, allowed for the recognition of two new species of Hypselotropis: H. jekeli sp. nov. from Colombia and H. jordani sp. nov. from Brazil. Hypselotropis jekeli sp. nov. is characterized by: longitudinal carina of rostrum entirely raised from apex; sides of rostrum tricarinate; antennae short, reaching only antebasal carina of prothorax; segments II–VIII narrowed and feebly impressed; lacking longitudinal carina on pronotum; lacking lateral carina on prothorax; prosternum without either furrow or ante-coxal depression; elytra strongly impressed along interstriae 1 and 2; ante-apical tubercles on interstria 4; pygidium impressed only on each side of longitudinal furrow, subtruncate at apex; and ventrite V strongly impressed, slightly projected at apical angles. Hypselotropis jordani sp. nov. is distinguished by the lack of a pronotal impression; short male antennae, reaching only middle of prothorax; and mesoand metafemora lacking dark vitta. A key to species and illustrations are provided. A cladistic reanalysis of the genus included 41 characters and 19 ingroup and 5 outgroup taxa. The resulting two most-parsimonious cladograms corroborated previous hypotheses of the relationships among Ptychoderini genera and the monophyly of Hypselotropis, with a new topology for the species relationships.

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