Asilidm from Aden and its neighbourhood. 85 



fascated at the tip, and the fore and nnddle tte have 



before the middle of the discal cell. 



6. Ehadinus ungulinus, Low. 

 Ehadinus ungulinus, Low, Neue Beitr. zur Kenntn. der 



Dipteren, iv, p. 38. 

 Five specimens (1 $, 4 ?) from Aden. The species is 

 nnmmon sittinsf on the sand. 



"?he baS pa^rt of the tibi. is sometimes to a great - 

 tent rufous; in the -a|e specimen the base of the W 

 femora is of the same colour. On Plate II, | gi^e a sRetcn 

 ofTe head in profile (fig. 4), the front leg (fig. 5) and the 

 neuration of the wmg (fig. 6). 



7. Bhadimis megalonyx, Low. 



Ehadinus megalonyx, Low, Neue Beitr. zur Kenntn. der 

 Dipteren, iv, p. 39. 



FivP specimens (1 $, 4 ?) from Aden; common in the 

 Jr;iSraTd1n^coV^; vath the preceding s^^^^^ 



The specimens vary in size (5 to 6.5 mm.) , in the male 

 and in tLe of the females the mystax is white in one of 

 the females only is it yellow,. The male which was un- 

 known to Low, agrees fully with the female. . 



Low has described both species from Egyptian 



specimens. 



PsiLiNUS, nov. gen. 

 (-^/rtXo?, bare.) 

 Belongs to the Dasypogina. without terminal spur to the front 



"^^iX'^y ^-t very slightly excavated ; c^elli 

 dist." t ; face flattened, narrower than the eyes, with parallel s.des ; 

 ivstax ascending to one third of the face ; eyes large, promment. 

 Tnt nnrsTender ; the third joint much longer than the basal joints 

 toX^P^ntd'at the tip ; terminal style distinct, elongate, two 

 ltd. Thorax and scutellum without bristles ; the abdomen long 

 and slender ; the anal segment (?) with some small spmes. Legs 

 Led ately long, the hind pair scarcely longer and somewhat more 



