THE CANADIAN ENTOMOLOGIST. IGo 



shorter bristles before the antennre, and three or four bristles descending 

 on the face, alongside of the antennce. On the ocellar triangle, a pair of 

 bristles pointing forward. Between the row of frontal bristles and the 

 eyes, a few scattered microscopic hairs ; sides of the face bare. Front, 

 face and posterior orbit silvery white. Frontal stripe brown, rather 

 narrow, enclosing posteriorly the grayish ocellar triangle. Antennae black 

 slightly tinged with brownish red on the two first segments ; the third seg- 

 ment is very long, almost reaching the edge of the mouth. Only a few 

 short bristles above the usual long oral bristle. Palpi, reddish yellow. 

 Eyes pubescent. 



Thorax gray, with a slight yellowish tinge from an oblique point of 

 view ; two slightly divergent black lines do not reach beyond the middle ; 

 two lateral black stripes are interrupted at the suture and prolonged 

 beyond it to the hind border ; these lateral stripes are broadest in the 

 middle and end in a point, anteriorly and posteriorly. Scutellum gray ; 

 two pairs of large macrochetge each side ; a third intermediate, very small 

 pair, on the apex. 



Abdomen gray with, a slightly yellowish tinge, especially on 

 the last segment ; somewhat marmorate, with blackish crossbands 

 on the hind margins of the segments, and a longitudinal blackish line ; 

 the crossbands appear more distmct and broader from an oblique point of 

 view; the longitudinal line disappears when viewed sideways from above, 

 A pair of macrochetas on the hind margin of the first segment ; two pairs 

 on the second segment, one in the middle, the other on the hind margin ; 

 on the third segment, a pair in the middle, and the usual row on the hind 

 margin ; two rows on the fourth segment. 



Legs : coxae and femora reddish ; tibiae reddish-brown ; tarsi brown. 

 Pulvilli unusually large ; ungues ? 



(The wings in the described specimen are injured.) 

 A single specimen, bred from Cynthia cardtii (C. V. Riley.) ^ 



This species is like E.futilis in the distribution of the bristles on the 

 front and in the structure of the antennae. It differs in the presence of an 

 additional pair of macrochetae in the middle of the second and ol the third 

 abdominal segments ; also in the comparative smallness of the intermediate 

 pair of macrochetae on the apex of the scutellum. 



Tachina (Exorista) hirsuta n, sp. % . Palpi, antennce and legs 

 black. Length 7 ni.m. 



Distribution of the frontal bristles like that in ^. /if^^/7/5 % ; that is, 



