THE PHILIPPINE 



Journal of Science 



D. General Biology, Ethnology, 

 AND Anthropology 



Vol. XIII JULY, 1918 No. 4 



THE MEGACHILID BEES OF THE PHILIPPINE ISLANDS 



By T. D. A. COCKERELL 

 (University of Colorado) 



The present account is entirely based on a very fine series of 

 specimens sent by Professor C. F. Baker and on the compara- 

 tively few published records that existed prior to the formation 

 of the Baker collections. Several islands are represented, but 

 of course our knowledge of the bee fauna of the Philippines is 

 still very incomplete. In the case of the Megachilidse, many of 

 which nest in wood, it is very likely that some of the species 

 have been distributed through the agency of man and do not 

 belong to the original fauna of localities where we now find 

 them. 



The genus Ctenoplectra Smith, which Ashmead included in 

 the Megachilidse, is an isolated type not at all referable to that 

 family. The one Philippine species is C. vagans Cockerell.^ 

 Baker obtained it on Mount Maquiling. It will be readily known 

 by the two submarginal cells and the shining blue abdomen. 

 The ■ lateral ocelli are more or less aborted. The Philippine 

 genera of Megachilidse, all of which have only two submarginal 

 cells in the anterior wings, are readily separable as follows : 



Key to the Philippine genera of the Megachilidse. 



Eyes hairy; female abdomen usually conical or pointed at end, male ab- 

 domen spinose at end; parasitic bees, without pollen-collecting apparatus. 



Coelioxys Latreille. 



Eyes not hairy 1. 



1. Female like Megachile, but wholly without ventral scopa, and antennas 



13-jointed Androgynella Cockerell. 



Female with a ventral scopa (pollen-collecting brush) on abdomen 2. 



'Ann. & Mag. Nat. Hist. (1904), VII, 14, 204, and (female) (1914), 

 VIII, 13, 280. 



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