THE CANADIAN ENTOMOLOGIST 199 



This European genus has not previously been recorded from this 

 continent. 

 Zodion perlongum, new species. 



Front and middle of upper part of occiput reddish yellow, remainder 

 of occiput black, changing to yellow below, gray pruinose, face and 

 cheeks light yellow, antennae reddish yellow, first joint wider than long, 

 the others slightly longer than wide, the second a trifle longer than the 

 third, arista black, the apical half whitish, proboscis black ; thorax and 

 scutellum black, gray pruinose, mesonotum marked with two velvet black 

 vittae and with three dark vittte between them and an interrupted one 

 outside of each of the two black ones ; abdomen narrower than, but fully 

 twice as long as, the ihorax, black, the second segment largely yellow, 

 dorsum of abdomen yellowish-gray pruinose, the under side and last 

 segment of genitalia polished ; abdomen widest at base of second 

 segment, tapering posteriorly to about half this width, segments two to 

 four noticeably longer than wide, the third one and one-half times as long 

 as wide ; legs reddish yellow, upper sides of femora largely black, last 

 tarsal joint dark brown ; wings hyaline, tinged with gray at the base, 

 halteres yellow; length, 8 mm. Four females. 



Habitat. — White Mts., New Mexico (Rio Ruidoso, about 6,700 feet 

 altitude, July 27th); Sierra Madre, Chihuahua, Mexico (head of Rio 

 Piedras Verdas, about 7,300 feet altitude, August 26th) ; and Colorado 

 ( H. K. Morrison). 



Type.— Cat. No. 6297, U. S. N. M. 



Family Tachinid^e. 

 Co mat acta, new genus. 



Near Siphosturmia, but the antennae reaching only slightly more 

 than two-thirds of distance to the oral margin and the thorax densely 

 covered with rather long yellowish and white hairs ; head at vibrissas 

 longer than at base of antennae, vibrissas on a level with anterior edge of 

 oral margin, one or two bristles above each, sides of face bare, each 

 nearly half as wide as the facial depression, frontal bristles descending 

 nearly to apex of second antennal joint, no ocellar bristles, two pairs of 

 orbital bristles in the female, wanting in the male, third joint of antennas 

 slightly over twice as long as the second, arista pubescent toward base, 

 the longest slightly longer than greatest diameter of arista, penultimate 

 joint of arista broader than long, cheeks about one-sixth as wide as the 

 eye-height, eyes bare, proboscis slender, the portion beyond the basal 



