Eoanthidium (Eoanthidium) bakerorum, new species (Megachilidae: Anthidiini), is described and figured from individuals collected in Oman and the United Arab Emirates. The new species is distinguished from other Eoanthidium sensu stricto and is particularly noteworthy for the presence of a large, possibly glandular opening on the anterior-facing surface of the metafemur in males. The organ resembles in some respects the metatibial glands found in male orchid bees (Euglossini) of the New World tropics. Possibly this structure functions in a similar fashion and represents an interesting parallel evolution of oil/fragrance-collecting and glandular structures (albeit on the metafemur in Eoanthidium versus the metatibia in Euglossini).
Engel, M.S. 2004. A new species of the bee genus Eoanthidium with extraordinary male femoral organs from the Arabian Peninsula (Hymenoptera: Megachilidae). Scientific Papers, Natural History Museum, University of Kansas 34: 1-6.
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