288 C. H. TYLER TOWNSENU. 



segments very faintly reddish on sides, first segment bluish white poUiiiose on 

 sides and below ; first and second segments with one or two lateral raacrochajtfe, 

 and a short median marginal pair; third with a marginal row, anal tipped with 

 marginal and submarginal. Legs black, femora more or less silvery pollinose, 

 especially front pair, tibise with rather weak bristles, claws and pulvilli elongate, 

 pulvilli tawny whitish. Wings grayish hyaline, tegulse bluish white; halteres 

 blackish, rufous at base. Length of body 6 mm. ; of wing fully 5 mm. 



Described from one specimen ; Ithaca, N. Y. Bred by Prof. J. 

 H. Conistock from Eiichyas sp. Issued August 20th. 



K.'Korijiita platywainise n. sp. 9- — Eyes cinnamon-brown, thickly pubes- 

 cent; front fully one-third width of head, frontal vitta velvet-brown, one-third 

 width of front; one orbital bristle directed forward ; sides of front, sides of face 

 and cheeks brassy pollinose, facial depression more silvery; sides of face with 

 bristly hairs ; anteniiie and arista brown, the second antennal joint with a slight 

 rufous tinge in jilaces. third joint about twice as long as second; proboscis 

 brownish, labella very large, palpi pale rufous, much thickened at tip; occiput 

 silvery or cinereous, thickly clothed with gray hair. Thorax and scutellnm 

 thinly silvery, with five blackish vittse, the outer ones heavier and interrupted 

 at suture, the median one obsolete before suture; humeri and pleurae silvery 

 white. Abdomen black, anal segment wholly rufous, second to anal segments 

 silvery white pollinose, first segment silvery on sides and below; second segment 

 with a lateral macrochseta and a median marginal pair, first segment with a 

 lateral one; third with a marginal row of about twelve, and anal with weaker 

 discal and marginal ones. Legs black, femora silvery white, middle and hind 

 tibise with spiny bristles, claws and pulvilli only a little elongate, pulvilli fuscous. 

 Wings grayish hyaline, very slightly tawny at base, veins brown; tegulse white, 

 halteres tawny. Length of body 9 mm. ; of wing 7.5 mm. 



Described from one specimen ; Ithaca, N. Y. Bred by Prof. J. 

 H. Conistock fi-om Platysamia cecropia. Issued August 19tii. 



KxMrista dataiise n. sp. %. — Eyes cinnamon-brown, thickly pubescent; 

 front about one-fifth width of head, frontal vitta blackish, about one half width 

 of front, no orbital bristles; vibrissas inserted considerably above oral margin, 

 facial ridges with a few closely set bristles just above vibrissse; sides of front 

 golden, sides of face and facial depression silvery, with more or less of a golden 

 shade, especially apparent on sides of face, which are also hairy ; cheeks silvery 

 bluish white behind and hairy, concolorous with sides of face anteriorly: an- 

 tenuiB blackish or brownish, the first two joints and posterior basal portion of 

 third more or less rufous, sometimes only the junction of second and third joints 

 so, third joint hardly twice as long as second ; arista brownish ; proboscis black- 

 ish, with large labella, the latter more or less brownish, palpi pale tawny or 

 watery yellowish, thickly bristly and thickened at tip, curved; occiput silvery 

 or cinereous, thickly clothed with brassy gray hair. Thorax shining black, 

 thinly silvery, with five black vittse, the outer ones iuterrujjted at suture, the 

 median one entire, not obsolete before suture, humeri and pleurae more distinctly 

 silvery; scutellum shining testaceous, silvery, black at base. Abdomen shining 

 black, sides of first to third segments broadly rufous, sometimes only faintly so, 

 posterior half of iinal segment rufous, second to fourth segments silvery white 



