500 BOMBYLID.E 



3. B. canescens Mikan. Pale tawny haired. Wings with the base 

 and foremargin light brown. Head with numerous long black hairs 

 behind the eyes ; sides of the face and a cross-band under the antennse 

 black haired. Thorax without any black hairs between the humeri and 

 the base of the wings. Femora mainly black. 



A soft pale tawny haired clear winged small Bomhylius, 

 closely resembling the next species. 



S. Frons shallow triangular, blackish grey, and clothed with numerous long 

 black hairs and still more numerous shorter rather depressed dull yellow 

 hairs which however do not extend to the upper angle ; face broad, produced 

 at the upper part less than the length of the eyes and then sloping rapidly 

 back to the lower eye-angle, greyish yellow where the pubescence is yellow 

 but blackish where the pubescence is black, clothed on the middle part with 

 dense long yellowish or whitish yellow hairs which droop at their tips and 

 which are surrounded on their ui:)per and side margins by a broad dense band 

 of equally long but more erect deep black hairs, and this band contracts 

 downwards and does not extend on to the lower part of the cheeks, where 

 only the yellomsh pubescence exists and even that in turn becomes pale 

 yellow on the small ashy grey jowls and back of mouth and merges into the 

 similar pubescence on the lower part of the pleurse ; back of the head 

 considerably puffed out and bearing numerous though not very conspicuous 

 long thin black hairs and a shorter denser coarse brownish yellow pubescence 

 which rests like a collar on the similar pubescence of the thorax ; viewed from 

 in front the radiating long black hairs behind the eyes are conspicuous 

 (being numerous though not dense) but do not quite extend to the upper 

 eye-angles ; vertex black, considerably elevated, and bearing a tuft of long 

 pubescence which is brownish yellow and erect on its back part but black 

 and directed forwards on its front part. Proboscis dull black, not quite 

 so long as from the point of the face to the tip of the scutellum. Eyes 

 touching for about as long a space as the length of the vertex, rather 

 widening towards the lower part. Antennte dull black ; basal joint rather 

 ob.scured by orange dust and bearing numerous long almost entirely black 

 hairs (but perhaps with one or two yellowish hairs) ; second joint cup-shaped, 

 with numerous very short black bristles ; third joint strap-shaped with a 

 small basal swelling, slightly increasing in size from the base to the middle 

 and then decreasing to the tip, not quite bare and in very good specimens 

 bearing just before the middle several glistening yellow dorsal scales ; style 

 as usual. 



Thorax deep black, obscured by very dense equal long pale tawny or dirty 

 pale yellowish pubescence ; when seen from above the black ground colour is 

 well visible all over the disc, but the front and sides show only brow^nish 

 tawny or dirty brownish yellow pubescence which is hardly or only a little 

 paler above the wing-base or on the large radiating patch of longer hairs 

 between that and the corner of the scutellum ; seen from in front, behind, or 

 sideways the pubescence is all soft yellow or almost brownish yellow or 

 even of a brownish tawny tint, against which (in the front view) the long 

 radiating black hairs behind the eyes stand out distmctly ; on the back part 

 there is some minute scaly pale yellow pubescence similar to that on the 

 scutellum ; there are no black hairs anywhere ; pleurit with dense long 

 pubescence similar to that on the disc of the thorax but growing paler 

 below like the pubescence on the jowls. Scutellum with pubescence similar 

 to that on the disc of the thorax and merging into it, but in addition with 

 minute scaly pale yellow pubescence all over the disc. 



Abdomen deep dull black, but densely covered with long pale yellow 

 pubescence which has a more or less brownish tinge, and which is longer 

 than that on the disc of the thorax but not so neatly shorn, while underneath 

 that is a short scaly pale yellow i)ubescence ; isolated long black hairs 

 occur on the hindmargins of the second, third, fourth, and fifth segments 



