628 LIST OF DIPTERA. 



Eristalis Datamus, n. s., fern. Niger, pilis fulvis vestitus, scutello 

 nigra hirto, abdomine basi fulvo, pedibus nigris, tar sis fulvis, 

 alis albidis basi et costce medio nigro-fuscis. 



Body black, stout: head clothed with short tawny hairs ; a fer- 

 ruginous spot at the base of the feelers, which like the mouth 

 are black: eyes reddish bronze; facets very small: chest and 

 breast thickly clothed with short tawny hairs, which are most pale 

 on the breast ; scutcheon, excepting the hind border, clothed with 

 black hairs: abdomen a little broader, but not longer than the chest, 

 clothed with short tawny hairs, adorned with a broad tawny band, 

 which ocoupies one-third of the length from the base : legs black, 

 clothed with short tawny hairs : feet tawny ; tips of claws black : 

 wings whitish, dark brown at the base, adorned with a large dark 

 brown spot on the middle of the fore border : wing-ribs and veins 

 black ; poisers pitchy. Length of the body 7 lines ; of the wings 

 12 lines. 

 a> ? From Mr. Children's collection. 





Eristalis Plistoanax, n. s., mas. Niger, capite fulvo, thorace piceo 

 fasciis duabus fulvis, abdomine fulvo maculis dorsi ferrugineis, 

 antennis fulvis, pedibus nigris, tibiis basi femoribusque posticis 

 fulvis, alis fusco-fulvis. 



Body black, broad and thick: head tawny, clothed in front 

 with pale tawny hairs : mouth pitchy : feelers tawny : eyes bronze 

 black ; facets on the fore part of the crown larger than elsewhere: 

 chest pitchy, clothed with short black hairs, adorned with two dark 

 tawny bands, which are clothed with hairs of the same colour ; one 

 is on the fore border, the other before the scutcheon : abdomen taw- 

 ny, short-obconical, a little broader but not longer than the chest, 

 clothed with short tawny hairs ; a triangular ferruginous spot on the 

 hind border of each segment from the second ; that on the second is 

 largest and darkest, and extends to the sides ; legs black, clothed 

 with short tawny hairs ; shanks towards the base and hind thighs, 

 except their tips, tawny and clothed with paler hairs ; foot-cushions 

 and claws tawny ; tips of claws black : wings brownish tawny, paler 

 at the tips and along the hind borders ; wing-ribs and veins pitchy, 

 the latter ferruginous towards the base ; poisers tawny. Length of 

 the body 5 J lines ; of the wings 11 lines. 



a. Philippine Isles. From Mr. Cuming's collection. 



