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The Muscular Mechanism of the Male Metasoma and Genitalia of Megachile fortis Cresson (Hymenoptera: Megachilidae)1

Published online by Cambridge University Press:  31 May 2012

Roland L. Fischer
Roland L. Fischer
Affiliation:
Kansas State College, Manhattan
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Extract

The terminology pertaining to the structure of the male genitalia of the Hymenoptera has been subject to much confusion. Several systems, many purely descriptive in nature, have previously been set forch. Others were based on the various concepts of the ontogeny of the male genitalia, or on the comparative morphology of the adults. The investigation reported here began as an attempt to synthesize the various terminolopies and to evolve a workable set of terms pertaining to the structure of the male genitalia of the megachilid bees. Accordingly, a study was conducted on the myology of the group with the thought that perhaps an understanding of the comparative musculature might be of value in determining the homologies of the insect genitalia. This paper reports the results of a phase of the investigation on the morphology of the male metasoma, the muscular mechanism of the male metasoma and genitalia, and the gross structure of the internal reproductive organs of Megachile (Phaenosarsus) fortis Cresson. A second portion of the study, pertaining to the comparative morphology of the male genitalia and associated sterna of the Mecgachilidae, will be published later.

Type
Articles
Information
The Canadian Entomologist , Volume 88 , Issue 12 , December 1956 , pp. 657 - 673
Copyright
Copyright © Entomological Society of Canada 1956

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