ZEN1LLIA AND ALLIED GENERA SELLERS 25 



bristly on lowest one-fifth; gena one-fifth eye height; frontal orbit 

 golden, face, gena, and posterior orbit a little less so; antenna black, 

 first and second segments obscurely rufous, third segment five times 

 length of second; arista thickened on basal one-third, penultimate 

 segment short ; palpus yellow. 



Thorax golden-pollinose, marked with four black mesonotal vittae ; 

 ecutellum golden-pollinose, three pairs of marginal scutellars, discal 

 scutellars if at all noticeable barely distinguishable from surrounding- 

 hairs: midtibia ciliate; wing with three and four bristles at base of 

 third vein. 



Abdomen covered with golden pollen which extends under on to 

 the venter, the golden pollen much more gleaming than in ochr(wea> 

 whose brownish tinge dulls the pollen ; first segment shining black, 

 gray-pollinose on venter; segments 2, 3, and 4 golden-pollinose on 

 basal two-thirds to three-fourth, the shining black margins of second 

 and third segments slightly V-shaped; first segment with a pair of 

 marginal macrochaetae ; second segment with a pair of discal and mar- 

 ginal macrochaetae ; third segment with a pair of discal and a marginal 

 row of macrochaetae ; fourth segment with a discal and a marginal 

 row of macrochaetae. 



Hypopygium brownish black; inner and outer forceps of same 

 length; outer forceps narrow and straight, and of same width 

 throughout, with a blunt ending, tapering only slightly toward apex; 

 outer forceps of ochracea wide, tapering gradually to a point, curving 

 inward. 



Female (allotype).— Front 0.32; frontal bristles six and seven in 

 number ; outer vertical bristle present ; two f ronto-orbital bristles ; third 

 antennal segment four and one-half times length of second. Two pairs 

 of marginal scutellars; wing with two and three bristles at base of 

 third vein. Otherwise the description is much the same as for the 

 male. 



The male paratype has only six frontal bristles ; the third vein has 

 one and two bristles at the base. 



Type locality— Hell Canyon, Manzano National Forest, N. Mex. 



Type.— Male, U.S.N.M. No. 54136. 



Host . — Unknown . 



Remarks. — The type was collected by Townsend September 18, 1916, 

 the allotype September 19, 1916, and the male paratype September 

 12, 1916, at an altitude of 7,200 feet. 



15. ZENILLIA TAGLINOI, new species 



Female (type).— Head with front at narrowest 0.28 head width; 

 frontal row of four bristles, extending upward to two reclinate pre- 

 verticals, first prevertical situated halfway between base of antenna 



