Records of Dees. 63 



of it *. In our insect tlie scutelluin and tubercles show no 

 red whatever, and the teeth at the sides of the former are 

 very little developed. The second abdominal segment has 

 the band hooked at the sides in one specimen, but the hook- 

 like projection is wanting irx the other, wlilch is certainly 

 coMSpecitic. The marking of the mesothorax is very different 

 from that of Frasene, wiiich 1 described as a subspecies of 

 CressonU. 



Uah. Dripping Spring, Organ Mts., New Mexico, Aug. 10 

 (C. H. T. Tuw/isend). Two males. 



Triepeolus segregatus (Ckll.). 



(J. — Length about 10 mm. 



Compact; labrum black and mandibles with little red; 

 clyj>eus very denscdy punctured ; hair of face silver-white. 

 Antenna black, or scape with a red spot in front, and third 

 segment and base of fourth red; the two stripes of meso- 

 thorax very distinct ; no pale anterior border ; scutellum 

 entirely black, the lateral teeth pointed but not long ; pleura 

 with a nude patch below, on which are scattered strong 

 punctures on a shining ground ; femora entirely red, or with 

 suffused dusky patches. 



$ . — Scutellum entirely black ; the abdominal bands beyond 

 the first segment entire, or that on the second inclined to be 

 interrupted. 



The female ascribed to segregatus in the original descrip- 

 tion probably represents a distinct species, or at least variety. 

 I was misled by it into thinking the present insect distinct 

 from segregatus, but I cannot see that the males are anything 

 but true segregatus, and the females taken at the same time 

 and place certainly belong with them. The insect is related 

 to T. pectoralis, Rob., but the black band on the first abdo- 

 minal segment is not so long, the tegulaj are differently 

 coloured, and there are other differences. The spurs are 

 brown, not black. 



Uah. Dripping Spring, Organ Mts., Aug. 10, 2 J', 2 ? 

 {C. II. T. Townsend). 



Triepeolus Townsendi, sp. n. 

 In size, colour, and markings just like the T. segregatus 

 from the Organ Alts., but differing as follows : — 



• However, E. CressonU was based primarily on the mercatus of 

 Crcsson (1878), and Cressou's full description appears to indicate an insect 

 spt'ciliciilly distinct from .sublinuifiis. \ irgiu'a is to bo taken as the type 

 locality. 



