Electrophoretic and Morphological Separation of Prosimulium Fuscum and P. Mixtum Larvae (Diptera: Simuliidae)

Document Type

Article

Publication Date

1-1983

Department

Department of Biological Sciences

Abstract

Prosimulium fuscum and P. mixtum larvae and adults may be readily separated on the basis of unique complements of electromorphs at the 6-phosphogluconate dehydrogenase locus. The species are closely related and share common electromorphs at 10 other polymorphic and monomorphic loci. Numerical analysis of 24 morphological characters from larvae shows cephalic fan ray number and the length of the postgenal bridge plus hypostomium can be used to identify most individuals to species. A possible environmental component in determination of morphotype may prevent correct identification of all larvae. Lack of utility of other characters currently used in keys to separate the species is discussed.

Publisher's Statement

© 1983, Entomological Society of Canada. All rights reserved.

Publication Title

The Canadian Entomologist

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