LIST OF DIPTERA. 479 



Ommatius Ialmus, n. s., mas. Fuscus, thoracis maculis duabus, me- 

 tathorace pectoreque fulvis, abdomine nigro, lateribus fulvo ma- 

 culatis, antennis nigris, pedibus fulvis, femoribus rufis, tarsis 

 nigris, alis subfuscis. 



Head as broad as the chest, covered with pale tawny down, 

 clothed behind and beneath with white hairs, thickly beset behind 

 with black bristles ; tubercle of the eyelets and sides of the crown 

 clothed with black hairs ; clypeus bright tawny, armed with black 

 bristles : eyes large, dark bronze ; fore part flat, its facets larger 

 than those of the other part : lip black, clothed at the tip with pale 

 yellow hairs ; palpi black, beset with long black hairs : feelers 

 black ; first joint clothed with long black hairs ; second joint beset 

 with short black bristles, about half the length of the first : chest 

 dark brown, clothed with black hairs, beset on each side and behind 

 with black bristles, tawny behind and on each side in front : breast 

 tawny, with a hoary tinge : abdomen black, a little narrower than 

 the chest and much less than twice its length, tapering from the 



I base to the tip, clothed with tawny hairs, of which there is a thick 

 tuft at its tip ; hind borders of the segments adorned on each side 

 with triangular tawny spots ; first and second segments short ; third 

 and following segments long, successively decreasing in length : 

 legs clothed with tawny hairs, beset with black bristles ; hips tawny, 

 clothed with long pale tawny hairs ; thighs red ; shanks tawny, with 



\ black tips ; feet black, tawny at the base ; claws tawny at the base ; 

 foot-cushions tawny: wings light brown, rather darker along the 

 borders of the veins ; wing-ribs piceous ; veins black, piceous to- 



i wards the base ; poisers tawny. Length of the body 6 lines ; of the 

 wings 1 1 lines. 



a. New Holland. Presented by J t Hunter, Esq. 



1 Ommatius auratus, Wied. Dipt, Exot. i. 213, 2. Anss. Zweif. i. 

 420, 4. Macq. Hist. Nat. Dipt. i. 314, 2. Asilus auratus, 

 Fabr. Ent. Syst. iv. 387, 48. Dasypogon auratus, Fabr. Syst. 

 Antl. 167, 12. 



t a. Madras. Presented by Walter Elliott, Esq. 



j b. East India. From Mr. Walker's collection. 



iVar. ? Fulvus, tkorace einereo, abdomine basi apiceque piceo, anten- 

 nis fulvis apice nigris, alis subcinereis. 

 Head pale tawny, as broad as the chest, armed behind with 

 rows of black bristles, and clothed with white hairs, which are most 

 thick beneath : clypeus very thickly clothed with pale yellow hairs 

 ; and bristles : lip black, short, stout, its tip covered with a cluster of 

 short pale yellow hairs : eyes dark bronze colour, divided as usual 



