526 BOMBYLID.E 



2. A. Paniscus Eossi. Wings hyaline, excej)t for a brownish fore- 

 margin down to the snbcostal vein. Pubescence dense and tawny, with 

 three black and two white alternating tufts at the end of the abdomen. 

 Abdomen of the male without any bands of yellow scales, but that of the 

 female with one narrow and two rather broad bands. Scutellum and legs 

 black, 



A large handsome fly, covered with dense tawny pubescence, 

 but with alternate black and white tufts at the end of the 

 abdomen, and with three bands of yellow scales on the 

 abdomen of the female. 



(?. Face slightly and equally produced, not projecting at all over the mouth- 

 opening, all dull black but covered with long yellow or orange scales which 

 almost or quite obscure the ground colour except just over the middle of the 

 mouth-edge, while on and above this mouth-edge are a few black scales ; 

 numerous more erect but inconspicuous black hairs occur on the upper eye- 

 margins, and a few such hairs straggle on to the disc of the face while on the 

 lower half some longer yellow hairs occur intermixed with the yellow scales. 

 Face at the antennal base one-third the width of the head, but becoming a 

 little narrower on the lower part ; sides of the mouth when almost under the 

 head flush Avith the eyes, leaving only a narrow line on which is a single row 

 of coarse yellow scales ; mouth-opening long and narrow, dull black ; back of 

 the mouth and the underneath parts of the head (pite bare, and the narrow 

 mouth-edge near the bottom of the eyes light brown ; back of the head very 

 considerably pufled out, beginning rather narrowly at the bottom but quickly 

 widening to the middle and upwards, all slaty black and vaguely shining, but 

 the lower part almost all covered with whitish scales which become silvery 

 near the eyes (when viewed from behind), and which are most dense and 

 conspicuous but almost confined to the eyemargin after the lower quarter of 

 the head, while thence upwards the back of the head behind these scales is 

 black with only minute black hairs and behind them again with dense furry 

 short yellow pubescence, and (unless in very perfect specimens) with very few 

 tiny orange scales except near the eyes where the scales are more numerous 

 and shimmering Avhite about the middle of the eyes but become yellower or 

 even orange higher up the head ; behind the vertex on the absolute back of 

 the head short pale yellow pubescence is visible, and about the narrow middle 

 channel are some inconspicuous short black bristly hairs. Frons narrow, 

 being at the top less than one-twelfth the width of the head but widening 

 (with an almost imperceptible curve) to nearly one-third the width of the 

 head at the antennae, dull black with abundant erect rather rigid black hairs, 

 and with conspicuous dark orange scales on at least the lower half (in perfect 

 specimens on the whole) of the frons. Proboscis long and narrow, with long 

 narrow brown sucker-flaps which usually just protrude below the mouth- 

 opening ; palpi black, long, narrow, and concealed. Eyes bare and with the 

 facets all eiiual, but just at the middle behind a peculiar line divides 

 the facets so that those above and below slope towards it for nearly a quarter 

 the width of the eye. Antennae dull black ; basal joint slightly longer than 

 the short transverse second joint, and bearing rather dense hairs both above 

 and beneath, those above being all black while those beneath may be nearly 

 all black or may have either a few or a good many pale hairs intermixed ; 

 second joint with shorter black hairs above and beneath ; third joint with a 

 slight brownish tinge, slightly broader at its base than the second, forming a 

 short triangle until produced into a long cylindrical point which has a blunt 

 tip, but which bears on that tip a minute style ; the narrow prolongation of 

 the third joint is twice as long as the short triangular base and altogether the 

 third joint is longer than the two basal joints together. 



Thorax dull black, densely clothed with tawny pubescence which is 

 shortest and least abundant on the disc and consequently leaves the ground 



