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Issue: Vol. 4543 No. 1: 4 Jan. 2019
Type: Article
Published: 2019-01-04
DOI: 10.11646/zootaxa.4543.1.5
Page range: 90–98
Abstract views: 71
PDF downloaded: 3

Two new species of Campsurus Eaton (Ephemeroptera: Polymitarcyidae) from Colombia

Instituto de Biodiversidad Neotropical, CONICET (National Council of Scientific Research), Universidad Nacional de Tucumán, Argentina.
Grupo de Investigación Ecología, Biodiversidad en Ecosistemas Tropicales (EBET) Universidad de La Guajira.
Ephemeroptera Campsurus albifilum group C. janae C. gracilipenis C. homaulus phylogenetic tree key Neotropics South America

Abstract

Two new species of Campsurus from Colombia are herein described, based on adults of both sexes and eggs. Campsurus vichada sp. nov. from the albifilum group, is separated from the other species in this group by: abdominal terga shaded slightly darker posteriorly, with a pale median band and pale closed markings, and pedestals short and subquadrate, main lobes of penes very long and slender, among other characters. Its sister relation with C. homaulus and C. gracilipenis is hypothesized through a cladistic analysis. A key is presented for the six species in the albifilum group of Campsurus.

Campsurus cristales sp. nov. from the segnis group, closely related to C. janae, is diagnosed by: posterior margin of male abdominal sternum IX tri–lobed, pedestal strongly elongated and penes with a strongly expanded dorsal area, among other features.

 

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