336 LIST OF DIPTEKA. 



hypostoina tawny; eyes dark blue, the inner or front part flat, 

 the outer part convex, but all the facets very small and with no 

 perceptible difference in size : lip short, tawny, marked with black, 

 thinly clothed w r ith tawny hairs, and having a tuft of shorter tawny 

 hairs at the tip : feelers tawny ; first and second joints of equal 

 length, beset with short black hairs ; third joint linear, about twice 

 the length of the first and of the second ; fourth joint extremely 

 small : neck short, black, beset with a cross row of tawny bristles : 

 chest and breast dull, very finely and closely punctured : sides of 

 the chest ferruginous, with a few tawny hairs and pale yellow bris- 

 tles ; this ferruginous stripe is widened in the fore part, and also 

 behind, where it forms a band in front of the. scutcheon : abdomen 

 ferruginous, smooth, shining, narrower than the chest and about 

 twice its length ; first and second segments mostly black ; first seg- 

 ment very short ; second segment very convex ; fourth, fifth and 

 sixth segments black, dull, very finely punctured, their disks more 

 or less ferruginous : the abdomen has a few short tawny hairs, but 

 these are longer and more abundant at the tip, which is armed with 

 short tawny spines : legs tawny, beset with tawny hairs and spines ; 

 hips, base of fore thighs, middle thighs from the base to beyond the 

 middle, and hind thighs except their tips, black ; fore legs armed 

 with a long curved black tooth at the tip of the shank, and with a 

 short blunt tooth at the base of the feet ; claws black, tawny at the 

 base ; foot-cushions tawny : wings bright tawny, paler along the 

 hind borders ; wing-ribs and veins ferruginous ; poisers tawny. 

 Length of the body 10 lines ; of the wings 17 lines. 



Dasypogon Volcatius, n. s. Ferrugineus, capite nigro, abdomine 

 piceo, antennis pedibusque ferrugineis, alisfulvis marginibus pos- 

 ticis pallidioribus. 



Head black, not broader than the chest, covered between the 

 feelers and the clypeus, and behind, with thick bright tawny down, 

 and slightly clothed behind and beneath with black hairs : clypeus 

 armed with about twelve long white bristles : hypostoma tawny : lip 

 rather longer than the head, beset with a few black hairs, tawny at 

 the base, ferruginous at the tip, where it has a cluster of short yellow 

 hairs ; palpi ferruginous, rather long, nearly one-third of the length 

 of the lip, clothed — especially at the tip — with long black hairs : 

 eyes dull brass colour ; fore part flat, composed of large facets, 

 which regularly decrease in size as they diverge towards the outer 

 convex part, which, however, is separated from the inner part by a 

 very clearly defined line, the facets in the former being all extremely 

 small and of much less size than the least of those on the front : 



