We describe and figure the previously unknown male of Hypanthidioides (Ctenanthidium) bifasciata (Urban, 1993) based on specimens reared from a trap nest along with a female. This species, originally known only from the type specimen collected in Colonia, Uruguay, is also newly recorded from Buenos Aires, Argentina. We provide for the first time information on the nest structure and, based on the analysis of pollen grains from brood cells, record five host plant species belonging to the families Apiaceae, Asteraceae, Brassicaceae, and Fabaceae. Most pollen grains belong to an undetermined species of the genus Melilotus L. (Fabaceae).
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14 July 2015
Description of the male, new geographical record, and biological notes on the small resin bee Hypanthidioides (Ctenanthidium) bifasciata (Urban, 1993) (Hymenoptera: Megachilidae)
Leopoldo J. Alvarez,
Mariano Lucia,
Silvana P. Durante,
Lilian M. Passarelli,
Victor H. Gonzalez
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The Pan-Pacific Entomologist
Vol. 91 • No. 2
April 2015
Vol. 91 • No. 2
April 2015
Anthophila
Argentina
host plant
pollen
pollinator