BEES OF THE GENUS COLLETES FROM MEXICO 



193 



rather sliort. Third joint longer than fourth, equals fifth. All joints of 

 flagelluni except fourth a little longer than wide. Alalar space longer than in 

 female, ahout one-fourth to one-third as long as wide. 



Thorax — More densely haired, pubescence longer, no black hairs. Im- 

 ])unctatc disk lacking, although punctures are slightly separated on a small 

 area of the apex of the mesothorax. Scutellum and post-scutellum as in female. 

 Metathorax with lateral posterior faces smooth, and finely sparsely punctured, 

 instead of being rugose. 



Abdomen — Similiar to female. Punctures larger and less dense ; more 

 white hair on first segment. 



Wings — Nervures and stigma not so dark as in female. 



Figure 72. Colletes recurvata. 



Legs — Pubescence on posterior femora sparse, white ; on femora of other 

 legs very long and dense; in distinct contrast to pubescence of thorax. First 

 joint of hind tarsi short, the apex exceedingly wide, almost ecjual to length, 

 and inner margin curving in abruptly to a narrow base (Fig. 7- C). First 

 joint of tarsi of other legs long, four or more times breadth. Claws apically 

 cleft. 



Genitalia (Fig. 72) — Stipes notched, apical part of medium length, 

 slightly curved inward ; long hairs at apex. Sagittal rods slender, slightly 

 curved outward ; memliranous wings at apices quite long, recurved. \'olsella 

 prominent. Seventh ventral plate with two wings; each quite broad, with 

 broad, rounded, shallow cmargination at apex. Almost the entire surface of 

 each wing is covered with rather long, spiny hairs ; although the apex and 



