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Issue: Vol. 469 No. 1: 19 Mar. 2004
Type: Article
Published: 2004-03-19
DOI: 10.11646/zootaxa.469.1.1
Page range: 1–6
Abstract views: 59
PDF downloaded: 22

Redescription of the type of Siphlonurus davidi (Nav s, 1932) (Ephemeroptera: Siphlonuridae)

Museum of Zoology, PO Box 448, CH-1000 Lausanne 17, Switzerland
Entomology, Florida A & M University, Tallahassee, FL 32307, USA
Ephemeroptera Siphlonuridae Siphlonurus davidi redescription

Abstract

The type specimen of Siphlonurus davidi (Nav s, 1932, sub. nom. Siphluriscus ? davidi), a male subimago deposited in the Paris Museum, is redescribed. Based on the entire male styliger plate, a hind wing shorter than the length of the forewing, and the distal position of vein MA of the hind wing, the present placement in Siphlonurus is considered valid pending discovery of other stages. Siphlonurus davidi will key to S. palearcticus and S. binotatus in recent keys from which it is distinguished by the greater width of the hind wing and the absence of prolonged projections on terga 8 and 9.

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