532 BOMBYLID.E 



^ . Frons slightly wider at the vertex than in A. Panisais or A. ciraimdaMts, and 

 with fewer golden scales ; face with scarcely any black hairs on the upj^er eye- 

 margins or over the middle part of the mouth-opening ; postocular scales 

 about the middle part of the head more silvery than in A. circumdatus. 

 Antennae with the basal part of the third joint more globular than in the 

 two allied species, but with the styliform portion quite as short as in A. 

 circumdatus. 



Thorax with the usual silvery patch above each wing-base ; pubescence on 

 the flat slope near the scutellum as in A. circumdatus. 



Abdomen without distinct bands until the fourth segment ; outstanding 

 tawny pubescence as short as in A. circumdatus and also comparatively 

 absent on the disc, but the outstanding black pubescence on the fifth and 

 sixth segments and on the base of the seventh more conspicuous, and the 

 pale tufts on the last segment pale yellow and comparatively small, while 

 the apical black tuft is as conspicuous as (though smaller than) in ^. Paniscus ; 

 the black tufts are conspicuous in combination with the long exclusively 

 black pubescence on the disc of the fifth, sixth, and seventh segments ; a few 

 golden scales can be traced on the base of the second segment but not 

 enough to form a band, and a very few can be traced near the extreme basal 

 corners of the third segment, but the first obvious band of yellow scales is a 

 broad and conspicuous one on the base of the fourth segment which covers 

 more than the basal half -of that segment except where so much emai'ginated 

 behind at the middle as to be almost or quite interrupted ; on the hind- 

 margins of the fourth and fifth segments are conspicuous though narrow equal 

 bands of golden scales, more obvious than in A. circumdatus but not quite 

 extended to the sidemargins. Belly almost as in vl. circumdatus, but the fifth 

 and sixth segments deeper black because of the deep black scales on them ; 

 fourth segment covered with whitish scales except down the middle, while 

 similar scales form bands across the hindmargins of the fifth and sixth 

 segments, but black scales occur abundantly on all the segments except the 

 fourth and first ; the long straggly pubescence comparatively sparse and 

 brownish tawny. 



Legs blacker than in the two allied species because there are only a few 

 scattered pale scales mainly beneath the basal half of the posterior femora 

 and about the base of the middle tibiae ; hind tibial without the splayed out 

 black scales of A. Paniscus, and the hind femora with rather obvious long- 

 black pubescence about the base and with few (four) postero-ventral bristles 

 which do not occur on the basal half. 



Wings hyaline with only the costal and subcostal cells rather brownish 

 or even tinged with a blackish hue, and without the slightest trace of 

 darkening in the marginal cell ; widened base of the costa without any pale 

 scales ; loop of the radial vein shallow ; rectangular base of the radial vein 

 usually with a recurrent veinlet, and also the base of the upper branch of 

 the cubital fork sometimes with one ; the piece of the upper branch of the 

 postical fork which forms the lower margin of the discal cell as long as (or 

 longer than) the base of the discal cell. Squama? more orange than in 

 A, circumdatus. Halteres with orange knobs. 



9 . Rather blacker looking than A.circtimdatus and with a more spatulate abdomen. 



Frons slightly broader at the vertex than in the two allied species and 

 perhaps more gradually widening ; postocular scales greyish yellow and 

 rather less abundant. 



Thorax as in A. circumdatus. 



Abdomen with five distinct yellow bands, of which the first and third are 

 broader than the others, and the third band (across the base of the fourth 

 segment) even broader than in A. circumdatus as it occupies almost all the 

 segment except at its emarginated middle part ; the three narrow bands 

 rather more sharply defined than in A. circumdatus, and the last segment 

 bearing numerous tawny or yellow scales except on the base ; the black side- 

 tufts on the hind half of the fifth and the whole of the sixth segments more 

 conspicuous than in A. circumdatus. Belly clothed with dense pale yellow 

 scales except on the foremargin of the fifth, sixth, and seventh segments, and 

 also with rather long pale yellow pubescence on the four basal segments. 



