867 



Male. Usually more yellowish and much slender than the 

 female. Head as long as or a little narrower than the thorax, but 

 much more arched. Frontal triangle flat, whitish grey with the upper 

 angle yellowish brown and prolonged narrowly a very short distance 

 between the eyes ; face and jowls usually more yellowish than the 

 female, the epistoma deeply sunken and nearly bare from pubescence, 

 while the cheeks are conspicuously inflated and covered with mode- 

 rately long and dense brownish yellow or deep yellow pubescence 

 which grows conspicuously longer on the jowls ; back of the head 

 rather shallow on the lower part and hollowed, out behind the eyes 

 on the upper part, ashy grey with some yellowish tinge, and bearing 

 some scattered fine yellowish white pubescence which extends a little 

 below to the jowls where it becomes very longer ; postocular rim very 

 narrow and its temple region not seen from above, behind which is a 

 short black ciliation which is conspicuous only about the angle just 

 before the vertex ; vertex very small and tubercular, dark brown, 

 bearing some short black pubescence on the hind margin. Proboscis 

 rather slender, about two-thirds as long as the depth of the head, 

 blackish brown ; the stalk covered with pale yellow pubescence behind 

 and with some shorter inconspicuous darker hairs on the sides ; the 

 sucker-flaps furnished with short scattered yellowish brown bristly 

 hairs. Palpi much more smaller than those in the female, dull orange ; 

 basal joint narrower than the end joint and about half as long as that, 

 dusted with greyish on the outside and clothed with moderately long 

 brownish yellow or deep yellow pubescence ; the second joint about 

 two and a half times as long as the breadth of its middle part, with 

 a bluntly angulated end, bearing numerous depressed black bristles on 

 the outside with a very few yello\v ones intermixed usually, and with 

 numerous long conspicuous yellowish hairs on the upper margin and 

 with sparser shorter yellowish grey hairs inside and beneath. Antenae 

 usually dark yellowish brown with the broadened portion of the third 

 joint conspicuously pale orange yellow ; the basal joint short but longer 



