406 THE CANADIAN ENTOMOLOGIST 



yellowish white, the abdomen basally and laterally with an irregu- 

 lar, black marking, possibly due to the body contents. Wings 

 hyaline, broad, with a length hardly twice the width, subcosta 

 uniting with the anterior margin at the basal third, the third vein 

 with its distal fourth curved posteriorly, a little before the apex 

 of the wing, and the fifth veii\ joining the posterior margins at the 

 distal fourth, its branch at the basal half; the forks of the fifth 

 vein subobsolete and indistinct; haltercs whitish transparent. 

 Coxa' pale yellowish; legs mostly a \ery pal,e straw; the small 

 claws with a length about half the diameter of the distal tarsal 

 segment, simple, the puKilli about as long as the claws. Geni- 

 talia large, extremely complex, greatly twisted; basal clasp seg- 

 ment long, irregular, swollen basally, slender apically; terminal 

 clasp segment subapical, slender, irregular, the distal third some- 

 what expanded and thickly and finely setose; dorsal plate long, 

 deeply and triangularly emarginate, the lobes slender, sparsely 

 haired and extending nearly to the apex of the genitalia; ventral 

 plate not recognized, the harpes strongh' chitini/ed, convolute, 

 irregularU' S-shaped. Type Cecid. 1693. 



SOME BEES FROM MADAGASCAR. 



BY T. D. A. COCKERELL, BOULDER, COLORADO. 



The following bees were received from the Queensland Museum; 

 I do not know who collected them. 



Pachymelus micrelephas Smith. 

 Miarinarivo, (Queensl. Mus. 9). — P. sorar Mocsary is evident- 

 ly a synonym. 



Pachymelus grandidieri n. sp. 



9. — Length 23.5 mm., anterior wing 18; robust, black, with 

 black, fulvous and pale ochraceous hair; tegument of clypeus (which 

 is polished and sparsely punctured, not gibbous in middle), labrum, 

 and greater part of basal half of mandibles orange; mandibles 

 bidentate, and with a subapical fulvous patch; eyes large, brownish 

 red; facial quadrangle longer than broad; scape short, red, with a 

 broad, yellow stripe in front; flagellum ferruginous, becoming 

 chestnut above, third antennal joint very nearly as long as the 



December, 1916 



