Scanning electron microscopy of larval instars and imago of Oestrus caucasicus (Grunin, 1948) (Diptera: Oestridae)

Oestrus caucasicus (Grunin, 1948) is a larval parasite of the nasal cavities of Capra caucasica, Capra ibex and Capra pyrenaica. This study is the first description of the parasite using scanning electron microscopy. The first larval instar shows minor differences with Oestrus ovis. The second larva...

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Bibliographic Details
Main Authors: Guitton C., Perez J.M., Dorchies P.
Format: Article
Language:English
Published: EDP Sciences 2001-06-01
Series:Parasite
Subjects:
Online Access:http://dx.doi.org/10.1051/parasite/2001082155
Description
Summary:Oestrus caucasicus (Grunin, 1948) is a larval parasite of the nasal cavities of Capra caucasica, Capra ibex and Capra pyrenaica. This study is the first description of the parasite using scanning electron microscopy. The first larval instar shows minor differences with Oestrus ovis. The second larval instar shows important synapomorphic features common to Oestrus ovis but, also, distinctive features as the spines-crown or the currycomb-shaped spines. The third larval instar shows many differences with Oestrus ovis, mostly in the ventral and dorsal spines. The imagos of the two species have closely related morphologies. This study is a contribution to a revision of phylogeny of Oestridae family.
ISSN:1252-607X
1776-1042