Thiago Mahlmann

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Males of some groups of bees have to find a place outside the nests to sleep, sometimes forming "male sleeping aggregations". Here we report the first record of "dense" male sleeping aggregation of two different genera of Eucerini bees observed in Bahia, Brazil. We discuss the possible aim of this kind of aggregation as well the plant utilized on aggregate.
BACKGROUND We report the first record and collection of Phanuropsis laniger Johnson, 1987, for Brazil since its original description. In addition we expand the distribution of Phanuropsis semiflaviventris Girault, 1916, for Amazonas, Brazil and present an updated list of records for both species with the occurrence of P. semiflaviventris in egg of(More)
The bee genus Chilicola Spinola (Xeromelissinae) is recorded from the State of Bahia, Brazil for the first time, based on a new species of the megalostigma group of the subgenus Hylaeosoma Ashmead. Chilicola (Hylaeosoma) kevanisp. n. is described and figured from males collected in Wesceslau Guimarães, Bahia. The species can be distinguished on the basis of(More)
A third species of the rare augochlorine bee genus Chlerogelloides Engel et al. (Halictinae, Augochlorini) is described and figured. Chlerogelloides nexosasp. n. is most similar to the type species, Chlerogelloides femoralis Engel et al., in that both have modified midlegs in the males. The former, however, can be distinguished on the basis of its(More)
We describe a new species of the bee genus Centris, Centris (Centris) byrsonimae Mahlmann & Oliveira sp. n., whose name has appeared as a nomen nudum in the literature since 1985. Further, a new species group of Centris s.str. is proposed, the pulchra group, based on morphological characters, which comprises the species Centris pulchra Moure, Oliveira &(More)
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