hp:nry l. viereck. 189 



Type. — University of Kansas. 



Type locality. — Morton Co., Kansas. 



One male specimen collected by F. H. Snow. 



Mutilla lialcyoiie Fox. 



One 9 taken in Hamilton Co., at an elevation of 3350 ft. This 

 specimen is not typical, but seems to differ from the type only in the 

 hairs on the second abdominal segment being sparser and in the dis- 

 tinctly visible punctures of the same segment. 



9IuliIIa (Pliotopsis) iniperisiliformis u. sp. 



Readily distinguished from its ally imperialis by the entirely 

 black head and thorax, sculptui'e, etc. 



% . — 7 mm. — Head. — Thorax and abdomen typical of the group to which it 

 belongs; parapsidal grooves distinct nearly all the way from the anterior to the 

 posterior margin of the dorsulum ; nietanotum with an almost quadrate shining 

 space which is, as the area in this region usually is, bisected by a longitudinal 

 raised line almost forming a ridge; wings uniformly fuscous, the only departure 

 from this being a hyaline streak from the base of the stigma across the first sub- 

 marginal cell to the junction of the first transverse cubitus with the cubitus, from 

 this latter point obscurely across the second submarginal cell to the junction of 

 the second transverse cubitus with the cubitus and merging into a hyaline spot 

 adjoining the second submarginal cell ; felt line of the second dorsal abdominal 

 segment extending from near the anterior margin of the segment to a point near 

 the posterior margin, each extremity being removed from a margin for a distance 

 about as long as the terminal tarsal joint on the posterior legs; the felt line on 

 the second ventral abdominal segment rather indistinct and only about as long 

 as the terminal tarsal joint of the posterior legs; the terminal ventral abdominal 

 segment nearly flat, with a shallow median longitudinal concavity, from very 

 sparsely punctured along the middle to closely punctured along the lateral and 

 posterior edges. 



AntenufE and mandibles very dark brown, the latter tipped with black, second 

 and third abdominal segments with an apical margin of golden brown, the suc- 

 ceeding segments entirely golden brown, otherwise the abdomen is black, except- 

 ing the tarsi, which are dark brown. 



Type. — University of Kansas. 



Type locality. — Morton Co., Kansas, 3200 ft. 



One % taken in June, 1902, by F. H. Snow, another <? (para- 

 type) from Nogales, Arizona, July 7, 1903 (Osier), is in the collec- 

 tion of Cornell University. 



Chyphotes (Ililluta ?) peculiaris Cress. 



One 9 specimen from Clark Co., 1962 ft. This specimen is not 

 typical, and may prove to l)e a variety or race of the typical form. 



TBANS. AM. KNT. SOC. XXXII. JULY, 1906. 



