Agelenids of the World

Systematics and Taxonomy of Agelenidae, a Worldwide distributed Spider Family

Copulatory mechanics in the funnel-web spiders Histopona torpida and Textrix denticulata (Agelenidae, Araneae)

Publication Type:Journal Article
Year of Publication:1994
Authors:B. A. Huber
Journal:Acta Zoologica (Copenhagen)
Date Published:1994
ISBN Number:0001-7272
Keywords:comparative study] [Mating / /, Copulation, functional morphology, functional morphology of copulatory organs]., Histopona torpida, Histopona torpida (Araneae)., organs, Reproduction, Reproductive behaviour, Reproductive system, Textrix denticulata (Araneae)., Textrix denticulata [Genitalia / / Copulatory

The functional morphology of the copulatory organs of Histopona torpida (C. L. Koch, 1834) and Textrix denticulata (Olivier, 1789), investigated by semi-thin serial sectioning after freezefixation of the animals in copula, is described. In H. torpida, the long embolus runs through a precisely defined course in the membraneous genital pouch of the female vulva. The patellar apophysis locks the pedipalp in the female epigastric furrow. In T. denticulata this is accomplished by the retrolateral tibial apophysis that gets hold at the female scape. In both species the conductor has a locking as well as a guiding function for the embolus. A comparison with previously investigated agelenids shows a surprising diversity in the function of the retrolateral tibial apophysis.

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