Pomona College, Claremont, California 63 



was collected by Baker in the mountains near Claremont, The males 

 may be separated thus: 



Outer face of hind tibia? with a large black mark; yellow band of 

 scutellum broadly interrupted in middle; median tooth at apex of 

 abdomen blacl^ at end provancheri Titus. 



Outer face of hind tibia? entirely yellow; yellow margin of scutel- 

 lum not interrupted; median tooth at apex of abdomen long and 

 entirely yellow consiviUe ( Ashm.) 



A male with pale markings, collected by Grinnell in the San 

 Gabriel Mts., has the hind tibiae as in provancheri, but the light 

 band on scutellum, though narrow, is entire, and the median tooth 

 at end of abdomen is rather brown than black at end. This is 

 referred to provancheri, but it may be that the two names represent 

 extremes in the variation of a single species. 



Triepeolus ancoratus sp. n. 



9 Length about 8 mm., with ochreous markings and red tegulae 

 and legs. Very near to T. callopus Ckll., but smaller; mesothorax 

 with two broad bands and margin with ochreous pubescence, leav- 

 ing only an anchor-shaped black area; cheeks and front densely 

 covered with pubescence; antennae red, dusky above, especially the 

 hind margins of joints; pleura with no bare patch. The mandibles, 

 labrum, lower margin of clypeus and apex of abdomen are red, as 

 in T. callopus. The black transverse band on first abdominal seg- 

 ment is completely Isolated by dense ochreous pubescence; the black 

 on second segment forms a very acute angle at sides. The last 

 ventral segment is turned down at end. 



Habitat: Claremont, Calif. (Pomona coll. 155). Certainly 

 very near to T. callopus, but quite distinct by the characters Indi- 

 cated. Collected by Baker. 



Triepeolus callopus Ckll. 

 One of each sex comes from Claremont {Baker; Pomona coll. 

 157, 158). The male is new. I give new descriptions, based on 

 these specimens. 



9 Length about 7.5 mm.; black, with clear red legs (but spurs 

 of midcile and hind legs black) ; clypeus, labrum, mandibles (except 

 apex), tubercles, tegulse (except hyaline margin) and apex of abdo- 



