72 AMERICAN HYMENOPTERA. 



known by the yellowish abdominal pubesence, larger size, etc. It 

 is perhaps not impossible that it may be the undescribed male of 

 A. flavocincta, but there is no proof that this is the case. 



Anthophora arthuri n. sp. (or albata var. ?). 



At Maybell, Colorado, Aug. 1, 1904, Mr. S. Arthur Johnson took 

 two females of Anthophora on yellow flowers of the family Cora- 

 positae. I referred one to ^4.. albata, as it greatly resembled Cres- 

 sou's figure of that insect, and the other I called albata, variety. 

 An examination of the type of A. albata shows that the supposed 

 variety is the true insect, while the supposed typical example ap- 

 pears to represent another species, to which the name A. arthuri 

 may be applied. This A. arthuri differs from albata in being some- 

 what larger and stouter, but particularly in having the apical tri- 

 angular patch of the fifth abdominal segment large, and pale grey- 

 ish brown. The face markings are very pale (as in albata), and 

 there is an upright band reaching the upper edge of the clypeus. 

 The mesothorax is densely clothed with white hair, no black being 

 intermixed. The spurs are considerably darker than in albata. 

 The flagellum is ferruginous beneath It may be that this is only 

 a variety o^ albata, but it seems best to treat it as a distinct species 

 in the absence of proof to the contrary. 



Anthophora abruptella n. sp. — 9 • Similar to A. abrupta, hut decid- 

 edly smaller and narrower (width of abdomen 5i mm., in abrupta 6); legs dark 

 ferruginous; clypeus with finer and much closer punctures; eyes yellowish; 

 tegulae light ferruginous (black in abrupta); hair of pleura, except the upper 

 part, black; hair of first abdominal segment all dull white; rest of abdomen 

 practically bare, with a small amount of black hair, the hind margins of the seg- 

 ments obscurely pallid. 



Hab. — Los Angeles, California {Davidson). I intended at first 

 to treat this as a subspecies of abrripta; but it is so far removed 

 geographically, and the characters, though few, are so distinctive, 

 that I describe it as a distinct species. 



CL.IISODON Patton. 

 disodon terminalis (Cresson). 



Steamboat Springs, Colo., Aug. 8, 1904. 9 {S. A. Johnson). 

 The pubescence is much more orange than in the New Mexico 

 form. 



