398 AMERICAN HYMENOPTERA. 



which fills in the eraargination of the eyes, part of the cheek and part of the 

 vertex: vertex convex and uniformly closely punctured. 



Thorax. — Eather cubical, the metathorax excavated, with the excavation shin- 

 ing and rather sparsely punctured with fine punctures; black, with pubescence 

 nearly as on the head where it is about the same as in papagornm, anterior third 

 of pronotum yellow, its posterior margin partly brownish testaceous, mesopleura 

 with a large yellow spot that almost adjoins the tegulse, which latter are brown, 

 with a yellowish tinge on the anterior margin, a yellow spot on each side of the 

 scutel, postscutel traversed transversely by a yellow line, metathorax mostly 

 ferruginous, with practically only its dorsal aspect black ; legs largely ferrugin- 

 ous; trochanters and coxse partly blackish, as are the tibise and the bases of the 

 femora, anterior femora with a yellow or luteous mark on the outer aspect; an- 

 terior, middle and posterior tibiae yellow externally, tarsi fuscous at base, brown- 

 ish at apex. 



Abdomen. — Partly black, pubescent, like jp«pa(7or?(.m ,* first dorsal segment with 

 a deep pit immediately anterior to its posterior margin ; second dorsal segment 

 nearly twice as long as wide at its base and forming a sort of canopy over all the 

 succeeding segments; beyond the second segment seemingly smooth and impunc- 

 tate; first segment mostly ferruginous, with the dorsal apical margin yellow, 

 bordered with black anteriorly to the yellow; second dorsal segment margined 

 with testaceous, with its black split up into five lobes by a luteous mark ; second 

 ventral segment mostly black, partly testaceous, with the entire posterior margin 

 testaceous, beyond the second segment the exposed portions of the segments are 

 testaceous. 



Type. — University of Kansas. 



Type locality.— Oak Greek Canon, 20 miles southwest of Flag- 

 staff, Coconino Co., Arizona. 



Taken in August, 1902, by F. H. Snow. 



Pepsis angustimargiiiata n. sp. 



Related to atalanta, cerberus and basifvsca. 



9 . — 26 mm. — Almost entirely Prussian blue, with a sericeous sheen, excepting 

 the antennse and tarsi which are blackish. Wings reddish, brownish-yellow, the 

 extreme base blackish, the apical half more of a yellowish than the basal half, 

 the apex and the posterior margins of the posterior wings, and the greater part 

 of the apical portion of the posterior margin of the anterior wings bordered with 

 fuscous, the fuscous not extending half way into any of the cells it margins. 



Type. — University of Kansas. 



Type locality. — Oak Creek Canon, 20 miles southwest of Flag- 

 staff, Coconino Co., Arizona. 



Collected in August by F. H. Snow. 



Paratype $ 23 ram., from Salt Lake City, Utah, July 25, 1897. 



Gorytes siibaustralis n. sp. 



Closely related to phaleratus, of which it may prove to be a race. 

 Black, with exceptions as noted in the following description. 



