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Mermithids (Nematoda: Mermithidae) Parasitic in Blackflies (Insecta: Simuliidae): I. Taxonomy and Bionomics of Gastromermis boophthorae sp. n.

Published online by Cambridge University Press:  31 May 2012

H. E. Welch  and
I. A. Rubzov
H. E. Welch
Affiliation:
Research Institute, Research Branch, Canada Department of Agriculture, Belleville, Ontario
I. A. Rubzov
Affiliation:
Zoological Institute of the Academy of Sciences of the U.S.S.R., Leningrad
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Abstract>

Gastromermis boophthorae is distinguished from related species by its longer spicule, its characteristic lateral cord, numerous and small cells in the head region, and longer proximal reflex of the vagina. This species is divided into six varieties that are based mainly on differences occurring in the free-living postparasitic stages. It is recognized that the term “variety” is seldom used in nematology and is unprotected nomenclatorially, but its use here seems justified to designate infraspecific populations that appear at present to be sympatric and anatomically discontinuous, and that can only be recognized as immature nematodes. Six species of blackflies were found to be hosts and infection is reported from May until August in the Leningrad region. Percent infection ranged from 1 to 10 but reached 100% in one sample. Synchronization of host and parasite development is probably important in determining incidence of parasitism.

Type
Articles
Information
The Canadian Entomologist , Volume 97 , Issue 6 , June 1965 , pp. 581 - 596
Copyright
Copyright © Entomological Society of Canada 1965

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