B S Fiorillo

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The three Pegoscapus species present the same internal reproductive tract features comprising testes with a single testicular tubule, seminal vesicles, vasa deferentia, accessory glands and an ejaculatory duct. The seminal vesicle shows two morphologically distinct portions although they do not resemble the separate chambers found in other Chalcidoidea. The(More)
The spermatozoa in Halictidae are sometimes observed in spermatodesmata in the seminal vesicle. They are linear, long, slender and their lengths vary from 213 microm to about 330 pm. The head region consists in the anterior acrosomal complex, formed by a conical acrosomal vesicle that shows an inner paracrystalline perforatorium extending into the nucleus.(More)
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