» Myiatropa. 47 1 



margins, and they are long on the postalar calli; the black space 

 between the posterior bands is more or less black-haired so that a 

 black-haired cross-band is formed, broadest at the sides; also on the 

 anterior black spots may be some black hairs. Scutellum brownish, 

 paler at the margin; it is black-haired on the disc, but yellow-haired 

 all round the margin. Pleura greyish pruinose with long, yellow hairs. 

 iVbdomen black, dull, with a shining transverse band anterior to the 

 hind margin on third and fourth segments, and sometimes .on the 

 middle of second segment; the second segment has a pair of triangular, 

 •yellow or orange side spots, not reaching the hind margin and broadly 

 separated in the middle; third segment has large, somewhat trans- 

 versely rectangular basal corner spots close to the front margin and 

 reaching backwards to the middle or a little beyond; fourth segment 

 has a pair of greyish or yellowish, pruinose transverse spots at the 

 basal corners, less broadly separated in the middle than the other 

 spots, and generally there is a similar, transversely triangular spot at 

 the hind margin ; the hind margins of the segments are yellow, broadest 

 in the middle, narrowing or disappearing towards the side margins. 

 Abdomen is clothed with relatively long, yellow hairs, the hind mar- 

 gins of second and third segments black-haired, generally broadest on 

 second segment. Venter blackish with pale incisures and side mem- 

 brane, and with long, yellow hairs. Legs black, femora with the 

 apex yellow, slightly on hind femora; front tibiæ with about the basal 

 half, middle tibiæ with the basal two thirds and hind tibiæ with about 

 the basal third yellow; tarsi either all black or the anterior, especially 

 the middle tarsi more or less yellow at the base; sometimes the tibiæ 

 much more yellow, the anterior with only the apex black and the 

 hind tibiæ with the basal two thirds yellow. Legs haired as usual; 

 the colour of the hairs very varying, sometimes nearly all yellow or 

 only black on the black part of hind tibiæ, or they are black to a 

 high degree, only yellow or partly so on the yellow parts of tibiæ; 

 middle femora relatively long-haired on the anterior side,' hind femora 

 black-setulose below in the apical part. Wings more or less brownish 

 tinged on the anterior basal half. Squamulæ pale brownish with a 

 darker margin and a yellow fringe, Halteres yellow. 



Female. Vertex moderately broad, the frons widening downwards; 

 vertex black, frons yellow pruinose with a broad, black stripe from 

 the vertex to the antennæ, widening downwards; the hairs black on 

 vertex and down the middle stripe, but yellow on the sides; the black 

 lower side parts of epistoma are generally yellowish towards the oral 

 margin. The markings on thorax generally more distinct, the whole 

 front half greyish white with two black side spots. Abdominal 



