2. TAB AN US 357 



but with the antero-dorsal edge all blackish except just at the base, in fact one 

 may sometimes almost say that the apical third of the hind tibiae is blackish ; 

 posterior tarsi hardly at all ferruginous at the base. Pubescence on the front 

 coxfe long and rather dense, mainly pale grey but blackish and shorter about the 

 tip ; that on the fi'ont femora black behind but towards the base postero- 

 dorsally longer, less dense, and grey, while the bare subf emoral space is almost 

 as in T. micans; that on the middle femora black and not dense antero-ventrally, 

 but dense and grey behind ; that on the hind femora abundant beneath and 

 mixed black and grey, though a shorter almost adherent pubescence is 

 conspicuously pale all about the tip (except beneath) ; front tibiae with only 

 short inconspicuous pubescence ; middle tibiae with long consijicuous delicate 

 hardly dense pubescence all over except at the base ; hind tibias with a coarse 

 dense rather sloping dorsal ciliation and a finer ciliation' beneath, but rather in 

 front of the latter is a delicate remarkably long suberect fine ciliation which 

 does not quite extend to the base or tip (very distinct from anything in 

 T. montanus) ; middle ankle joints orange, and the spurs brownish red with a 

 black tip, while the middle tarsi have reddish soles ; hind tarsi obscurely 

 reddish beneath. Pulvilli brownish yellow ; claws dark brown at the base 

 but black at the tip. 



Wings slightly greyish or brownish, but brownish yellow or pale brownish 

 at the base up to the basal cross-veins ; subcostal vein strong, dark brown, 

 widening about its end and with brownish orange or blackish brown marginal 

 clouding there which forms a long narrow indefinite stigma. Squamce glassy 

 greyish, the alar pair being rather smoky with a slight or distinct blackish 

 tinge and a narrow blackish margin, and the thoracal pair with a light 

 brownish orange margin ; fringes minute and pale, but with the usual 

 rather conspicuous whitish yellow tuft of longer pubescence at the lower 

 angle of the alar pair. Halteres with small broAvn knobs. 



? . Similar to the male. Frontal stripe light brownish grey, but with a blackish 

 sheen down the middle, distinctly contracting from the ocelli to the front 

 eye-angles and about three and a half times as long as its broadest part 

 or six times as long as its narrowest part ; lower callus almost quadrate, 

 not quite touching the eyes, but continued upwards in a narrow black line 

 which represents the middle callus ; vertical space darkened, with the hind 

 ocelli sometimes conspicuously red ; pubescence on the frons (when seen 

 sideways) rather dense and by no means short, black, (normally) sloping 

 forward, and distinctly longer on and about the vertical space ; cheeks with less 

 bushy black pubescence than in the male and with a few grey hairs inter- 

 mixed, and the black hairs not extending so far as the lowest part of the 

 eye ; pubescence on the back of the jowls and all about and behind the mouth 

 brownish or greyish yellow, rather dense and conspicuous ; back of the head 

 with a narrow light grey bare rim which is only slightly widened on the 

 lower part, and behind this rim lies a short brownish yellow ciliation 

 which grows longer on the upi^er part but which does not merge into the 

 longer black pubescence about the vertex ; frontal triangle light grey, almost 

 whitish, quite bare. Palpi orange with a blackish tinge ; second joint clothed 

 Avith short dense black bristles which are not quite dense enough to obscure 

 the ground colour but bare on the inner side, rather broad at the base and 

 gradually diminishing to a point, more than three times as long as the 

 broadest part, and bearing a little pale pubescence beneath at the base ; basal 

 joint blackish grey, and bearing pubescence which is long and pale beneath 

 but black and not so long or abundant dorsally. Eyes with the facets all 

 nearly equal in size ; pubescence still dark brownish when seen from above, 

 longer on the front part than in the females of the allied species, dense on 

 the front part but becoming short, sparse, and pale on the upper, lower, and 

 hind margins ; in life (var. hisignatus) bright green with three brownish 

 Ijurple bands, of which the middle band is entire and runs straight from the top 

 of the frontal triangle to the middle of the back of the eye, upper and lower 

 bands equidistant from the middle one but not quite so sharply defined at 

 the front end, rather broader and on the hind quarter sharply converging 

 until they each almost touch the middle line ; the part above the uppermost 

 band rather more bronzy green than the rest. Antennte with the basal 



