LIST OF DIPTERA. 343 



hairs : abdomen decreasing in breadth from the base to the tip, 

 clothed with short yellow hairs, narrower than the chest and rather 

 less than twice its length ; first segment short, black ; second seg- 

 ment a little longer, rather broad, covered with a tawny bloom, its 

 sides beset with pale yellow bristles ; third segment long, with a 

 cross suture near its base ; the following segments successively de- 

 creasing in length to the tip, which is armed with short piceous 

 spines ; third, fourth and fifth segments bright reddish tawny ; sixth 

 and following segments black, shining, with numerous but very 

 slight cross furrows : legs black, thinly clothed with tawny hairs ; 

 hips hoary ; thighs with some black spines ; more of these on the 

 shanks, and still more on the feet, which are also most hairy ; claws 

 black; foot-cushions tawny; fore legs unarmed : wings light brown, 

 darker at the base and along a streak in the disk ; wing-ribs and 

 veins piceous ; poisers tawny. Length of the body 1 1 lines ; of the 

 wings 20 lines. 



a. East Indies. From Archdeacon Clerk's collection. 



Dasypogon iEdon, n. s. Niger, thorace fulvo trivittato, pectore 

 fulvo, abdomine cinereo albo fuscoque vittato, antennis pedibusque 

 nigris, alis subfulvis apice cinereis. 



Body deep velvet-like black : head short, a little broader than 

 the chest, covered with shining pale yellow down between the cly- 

 peus and the base of the feelers, hoary and clothed with black hairs 

 behind and beneath ; crown beset with some black hairs ; clypeus 

 aimed with long black hairs and still longer white bristles : eyes 

 bluish black, divided as usual into two parts, which are distinctly 

 marked : lip black, clothed with black hairs at the base, tawny and 

 bearing a group of short yellow hairs at the tip : feelers black ; first 

 and second joints of equal length, beset with black bristles and 

 hairs ; third joint club-shaped, as long as the first and the second 

 joints, narrower than them at the base, but much broader at the tip : 

 chest with three stripes and some other traces of pale tawny down ; 

 sides beset with black bristles and hairs, and there are a few of the 

 latter — but of smaller size — on the back : breast pale tawny, with a 

 hoary bloom, thinly clothed with pale hairs, and having a more or 

 less brown tinge where it joins the chest : abdomen nearly linear, 

 but somewhat increasing in breadth at the base and at the tip, 

 clothed with short yellow hairs and at the tip with longer yellow 

 hairs and black bristles, much narrower than the chest and less than 

 twice its length ; first segment very short ; second segment a little 

 longer, with a cluster of yellow hairs and black bristles on each side ; 

 third segment long, divided into two parts by a cross furrow ; the 

 fore part gray, the hind part white ; on the furrow between them are 



•2 H 3 



