TAXONOMY OF MUSCOIUKAX FLIES — TOWXSEND J^ 



lar, with slight wrinkle, sometimes with slight stump. Hind cross- 

 vein much nearer to bend of fourth vein than to small crossvein, the 

 latter on middle of discal cell. First vein ending well beyond small 

 crossvein. A long costal spine present. Macrochaetae only mar- 

 ginal, except some submarginal on last segment. 



Second antennal joint about four times as long as first, about equal 

 to third. Frontal bristles descending only two below base of an- 

 tennae. Arista and eyes bare. Front prominent ; parafacials mod- 

 erately wide, about one-half width of facial plate. Face receding, 

 epistoma slightly prominent ; facialia bare, except two or three short 

 bristles above vibrissae in male, but practically absent in female. 

 Vibrissa strong and inserted a little above oral margin. Cheeks 

 about one-half eye height. Antennas inserted above line drawn 

 through middle of eyes. Occiput swollen inferiorly. Male with- 

 out, female with two orbital bristles. 



Scutellum with a very short apical decussate pair of bristles, and 

 two strong lateral pairs with a weaker bristle between them. Abdo- 

 men composed of five segments, first short, second shorter than those 

 following. Male abdomen elongate-conical, last segment laterally 

 compressed ; female abdomen ovate with apex conical. Legs rather 

 long, tarsi of male very elongate ; male claws very long. Type, 

 the following species : 



Paranaphora diademoides, sp. nov. 



Five females, four males, Mississippi, Louisiana. Texas. 



Length, 7 to 12 mm. Head, thorax, and scutellum of male golden 

 pollinose, most thickly so on thorax and scutellum. Same parts of 

 female brassy gray, extending over abdomen. Antennae of male 

 reddish yellow, those of female brownish yellow. Frontalia red- 

 dish brown. Palpi minute, pale yellowish. Mesoscutum with a 

 median pair of linear vittae interrupted at suture and obliterated 

 shortly behind same; a lateral triangular blackish marking just in 

 front of suture outside these, and a longer, narrower, posteriorly 

 pointed one corresponding to it behind suture. Abdomen of male 

 reddish yellow with base, median line and broad hind borders of last 

 three segments brown, a golden bloom over the lighter portions. 

 Female with narrow hind borders of last three segments brown, 

 with brassy gray bloom, the second segment faintly yellowish. 

 First segment without macrochaetas ; second with anterior and pos- 

 terior lateral, and a median marginal pair; third with two lateral 

 pairs and a median pair; fourth with 8; anal segment of male with 

 about 8 marginal and 6 or more submarginal, those of female less in 



