IW'2.1 10 



the middle abdominal segments being armed with seta; on the disc, those on the 

 second ring being very small ; the forehead is a little prominent in the male ; the 

 antennae have the third joint fully three times as long as the second ; the arista is 

 long and slender, a little thickened at the base, and slightly and gradually tapering 

 towai'ds the end ; the scutellum is yellow, and the hind tibire are ciliated with an 

 even row of bristles in both sexes. Not common. Mr. Dale sent me a specimen 

 from a Tceniocampa, Mr. Bignell one from A. psi, and Mr. Fitch one from A. tridens. 



E. GRANDIS, Ztt. 

 This, about the largest of the Exoristcs, being from 10 — 12 mm. in length, is 

 very similar in size, shape and genei'al appearance to Tachina larvarum. It has the 

 same shai)ed apical cross wing veins, they being long, curved, oblique, and furnished 

 with a cubital appendix. The forehead is prominent ; eyes widely separated in 

 both sexes ; the front alia occupying about a fourth of the width of the head in the 

 mule, and a tiiird in the female ; the antennte are drooping, the second joint is rather 

 elongated, and the tliird about two and a half times as long ; the arista has tlie 

 second joint distinctly shown, and the third long and thickened for rather more than 

 half its length ; the palpi are yellow and filiform ; the fronto-orbital bristles extend 

 down two-thirds of the face, six or seven being below the I'oots of the antennse ; the 

 facialia are bare ; the thorax is dull black, covered with hoary pubescence, which is 

 thick and white on the front margin ; it is marked by four rather wide black stripes ; 

 the scutellum is more or less rufescent ; the abdomen is marked by three grey bands, 

 the second segment has two large central bristles on the margin, but none on the 

 disc; the third segment has one or two on the disc, in addition to those on the 

 margin ; the aperture at the end of the first posterior wing cell is very small ; the 

 outer cross vein is sinuous ; the hind tibiae are ciliated with nearly an even row of 

 bristles, having one long one near the centre. This fly is in Mr. Dale's collection, 

 reared from Saturnia carpini, and I have received specimens from Messrs. Mosley, 

 Bignell, and Fitch, all of which were bred from the same moth. Prof. Mik says 

 that the T. pavonim, Ztt., is identical with this species. 



E. AFPiNis, Fin. 

 This species has the palpi and scutellum yellow, and the sides of the second 

 segment of the abdomen red. The thorax is black and shining, with four indistinct 

 black stripes, and only three external dorso-central bristles behind the suture ; the 

 abdomen is black, glabrous and very setose, having both discal and marginal bristles 

 on all the segments ; it is also tessellated with white patches ; the antenniae have 

 the third joint only a little more than double the length of the second ; the fronto- 

 orbital bristles extend half way down the face ; the sides of the frontalia are black 

 and glistening in the female ; the wings are yellowish-brown, with curved apical 

 cross veins. Walker includes this species in his list, but his description does not 

 correspond with that of other authors, nor with the character of the fly itself, typical 

 specimens of which I have received from the Continent. Very i-are. 



E. NOCTUiciDA, End. 

 This has the palpi yellow, and the end of the scutellum a little rufous. The 

 eyes of the male are approximated, the frontal stripe is as wide or wider (in most 



