LIST OF DIPTERA. 653 



Porphyrops aulicus, Meig. Dipt. iv. 48, 6. 



a. England. 



b. ? 



Porphykops chetifer, Halidayh MSS. Viridis, thoracis vittis abdo- 

 minisque segmentorum suturis ceneis^antennis nigris, pedibus ful- 

 vis, tarsis posticis nigris, tarsis anticis rnari. apicenigris latiori- 

 bus, alis subfulvis. 



Body green, beset with black bristles : head covered in front 

 with white down : eyes bright red : mouth tawny : feelers black ; 

 bristle more than twice the length of all the preceding joints : chest 

 adorned with indistinct brassy stripes, slightly covered with white 

 bloom, which is more thick on the breast : abdomen covered with a 

 slight white bloom ; sutures of the segments brassy : legs tawny, 

 clothed with very short black hairs, beset with black bristles ; shanks 

 rather darker than the thighs ; feet of the male dark tawny; middle 

 feet paler at the base ; fore feet pale tawny, their tips black, slightly 

 widened ; feet of the female darker than the shanks, hind feet 

 black : wings with a slight tawny tinge ; wing-ribs and poisers taw- 

 ny ; veins brown, tawny towards the base. Length of the body 1 \ 

 line ; of the wings 4 lines. 



a. England. 



Pokphyrops pilosicornis, Barnstoris MSS. JEneo-viridis,antennis 

 nigris, pedibus fulvis, tarsis piceis, femoribus posticis apicefusco- 

 maculatis, alis limpidis. 



Body brassy green, beset with black bristles : eyes dark red : 

 mouth dark tawny : feelers black ; bristle downy, proceeding from 

 the base of the third joint and more than twice its length : breast 

 and sides of the chest covered with a white bloom, which appears 

 also on the chest, but is there very slight : legs tawny, clothed with 

 short black hairs, beset with a few black bristles ; feet pitchy ; 

 a small brown mark on the tip of each hind thigh ; fore hips at the 

 base and the other hips green and covered with white bloom : wings 

 colourless ; wing-ribs tawny ; veins black ; poisers yellow. Length 

 of the body 1 J line ; of the wings 2i lines. 



a. St. Martin's Falls, Albany Kiver, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Group II. Haliday, ZooL J own. v. 355. 



Pokphyrops annulipes, Meig. Dipt. iv. 56, 25. 

 a. England. 



PART III. 8 M 



