Messrs. T. D. A. Cockerell and W. Porter on Bees. 419 



also CaUiopsis semirufus, Ckll., but that is probably the 

 female of H. suhaJpina. The tono;ue is broader in the female 

 //. callops than in the male. 



Hypomacrotera callops, sp. n. 



S . — Length about 5^ millim. 



(Shining black, with white pubescence, which is long and 

 conspicuous on the face, cheeks, thorax, and end of abdomen, 

 but dense only on the lower part of the face, where it overlaps 

 the clypeus and forms a white beard ; head transversely oval, 

 facial quadrangle broader than long ; eyes blue-grey ; clypeus, 

 labrum, and lateral face-marks white, the latter triangular ; 

 clypeus with the usual two black dots ; labrum with a black 

 spot in the middle; mandibles white, with rufous tips; front 

 smooth and very shiny; ocelli in a slight curve; antennse 

 black, flagelium very pale yellowish brown beneath ; thorax 

 very smooth and shiny ; hind parts of scutellura and post- 

 scutellum punctured ; extreme base of metathorax roughened ; 

 tegulffi hyaline ; wings clear, the apex unusually produced, 

 rounded, black ; nervures dark brown ; stigma very narrow, 

 almost linear, hyaline, with a brown margin ; marginal cell 

 very long, narrow, appendiculate; second submarginal cell 

 narrowed less than half to marginal; legs black and white; 

 femora black, apical portion of anterior femur white in front, 

 four hind knees white ; tibiae white, with black patches, ante- 

 rior one with a patch behind, the others with one on each side, 

 occupying a large part of the surface ; tarsi white, the last 

 joint of middle tarsus and all the small joints of hind tarsus 

 black ; abdomen obpyriform seen from above, black without 

 marks, hairy at the end. 



U/7> 

 Hyprjmacrotera callops, J . 



. — Length about 7 millim. 

 Face black; mandibles brown, with dark brown tips and 



