96 THE CANADIAN ENTOMOLOGIST. 



smooth neck, which is twice as long as wide at base. Mesopleura shining, 

 coarsely and closely punctured, except for a small, median, poh'shed, 

 impunctate space, the pubescence whitish. Tegul?e shining, black to 

 rufo-piceous. Wings hyaline, nervures very dark brown to blackish, 

 stigma dark brown. Legs wholly black, claws and spurs ferruginous, 

 thinly clothed with grayish-white pubescence, rufous fringes on inner 

 apices of tarsal joints. Abdomen shining, first segment highly polished, 

 its base almost impunctate and surrounded by a ruff of long, erect, pale 

 hairs, which reaches down the sides, elsewhere with small, well-separated 

 punctures, weakening toward a median longitudinal impunctate line and 

 becoming finer and very dense on apical margin, second segment similar, 

 but uniformly and more finely punctured, .following segments duller, but 

 still quite shiny, finely and closely punctured. Base of second segment 

 depressed; and with a white pubescent fascia broadly interrupted medially, 

 the apical margin of the first with lateral fasciae, of 2-5 with complete 

 broad pure white fasciae, which are, however, not dense, but easily worn 

 off", and not decidedly continued on the shining venter. Segments 3-6 

 with a few scattered, dark brown hairs. 



^. — Length 9 mm. Differing from 9 as follows: Pubescence 

 much paler and denser, that on clypeus long, dense and silvery, that on 

 thorax long, erect and covering the whole surface, pale gray or grayish- 

 white, with a very few dark brownish hair's intermixed, these most 

 noticeable on scutellum ; labrum with about four subequal striae ; first 

 joint of flagellum a shade shorter than second ; malar space about one- 

 half width of mandible at base ; prothoracic spines smaller ; apical tarsal 

 joints inclining to ferruginous ; abdomen shining, but lacking the high 

 polish of the $ , the whole of first segment with spare, long, erect pale 

 pubescence, no fascia on base of second segment, but a poorly-formed one 

 at apex of first segment, and well-formed, though loose, fascise on apices 

 of 2-6. 



Specimens examined : Type i' , o , Big Horn Mts., Wyoming (L. 

 Bruner) ; co-types, 2 $ $ 's, Corvallis, Oregon, June 11, 1S98 ; 2 ? $ 's. 

 Market Lake and St. Anthony, Idaho; 2 ? ? 's, Colorado, Nos. 2277 

 and 2294. Apparently a mountain species of rather extended distribution. 



From the other North American species having black hairs on the 

 thorax above and a fascia on base of second abdominal segment in the $ , 

 this sex <z>i fulgidus may very readily be distinguished as follows : From 

 cotnpadus by the pitted base of metathorax ; from distinctus by the 



