Browsing by Author "Straka, Jakub."
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ItemFirst observations on nesting and immatures of the bee genus Ancyla (Apoidea, Apidae, Apinae, Ancylaini). (American Museum novitates, no. 3749)(American Museum of Natural History., 2012-06-25) Straka, Jakub.; Rozen, Jerome G., Jr. (Jerome George), 1928-Herein we present information on the nest architecture and nesting biology primarily of Ancyla asiatica Friese and, to a lesser extent, of A. anatolica Warncke, both found near Adana, Turkey. These two ground-nesting species visit Apiaceae for mating and larval provisions, with A. asiatica going to Daucus carota and A. anatolica, to Eryngium. The cocoon of A. asiatica is described in detail as are the mature oocytes of both species and the pre- and postdefecating larvae of A. asiatica. Each site was attacked by a separate, unnamed cleptoparasitic species of Ammobates (Nomadinae). The relationships of the Ancylaini to other apine tribes are discussed based on their mature larvae, and a revised tribal key to mature larvae of nonparasitic, noncorbiculate Apinae is presented. ItemOocytes, larvae, and cleptoparasitic behavior of Biastes emarginatus (Hymenoptera, Apidae, Nomadinae, Biastini). (American Museum novitates, no. 3667)(New York, NY : American Museum of Natural History., 2009) Rozen, Jerome G., Jr. (Jerome George), 1928-; Straka, Jakub.; Rezkova, Katerina.We present information on the nest-searching and parasitic behavior of the European cleptoparasitic bee Biastes emarginatus (Schenck), found attacking nests of Rophites quinquespinosus Spinola in the Czech Republic. Its mature oocyte, first instar, and last larval instar are described and illustrated by SEM micrographs, microphotographs, and diagrams. These stages are compared with those of other members of the Biastini. Because the first instar of the related Neopasites cressoni had not been described before, its description is appended, so that comparisons can be made with B. emarginatus. In most respects, the biology and immature stages of B. emarginatus closely resemble what is known concerning other tribal members, but we note that the mature larva, though agreeing morphologically with those of close relatives, has an anatomy that invites investigation into adaptive function.