THE MYCETOPIIII.ID.1; OF NORTH AMERICA. 257 



12. Platyura notabilis Williston. 



1894. notabilis Williston. Kansas Univ. Quart. II. 59. 



Male. Length 8 mm. Antennae black, not compressed, a 

 half longer than the thorax; first two joints yellow. Face and 

 lower part of the front reddish yellow; epistoma projecting, 

 beak-like ; palpi and proboscis yellowish ; front, except the 

 lowermost portion, black. Thorax yellow, the mesonotum 

 somewhat reddish ; a blackish spot on the proximal part of the 

 hind coxre and the adjacent portion of the pleura; a fringe of 

 black hairs just above the root of the wings. Abdomen reddish 

 yellow, with short, black hairs. Legs yellow, the tibiae and 

 tarsi infuscated or blackish; front tibirebare, the middle and 

 hind pairs with short spinules. Wings yellowish, the tip infus- 

 cated ; a feebly marked brownish band before the tip ; the sub- 

 costal vein terminates at the origin of the radial sector ; R.:+3 

 joins the costa just beyond the insertion of Ri. Anal vein com- 

 plete. AA^ashington. 



13. Platyura ignobilis AA'illiston. 



1896. ignobilis Williston. Trans. Ent. Soc. London. 257. 

 ]\Iale. Length 3 to 4 mm. Base of antennae and the face 

 yellow; front and occiput blackish. Thorax reddish-yellow, 

 the dorsum with black hair arranged in distinct rows. Scutel- 

 lum and metanotum brownish. Abdomen brownish-yellow, 

 with black hair. Legs yellow, the tarsi infuscated; front meta- 

 tarsi not more than three-fourths the length of the tibiae. 

 Wings uniformly subinfuscated ; Rii+3 is nearly rectangular, 

 terminating in the costa ; the subcostal vein is very short. St. 

 Vincent Isl. 



14. Platyura fascipcnnis Say. 



1824. fascipcnnis Say. Long's Expedition. App. II. 360. 

 Female. Length 4^ mm. Head yellow ; center of vertex 

 black. Mesonotum yellow, uinnarkcd or at most with only a 

 faint indication of deeper yellow stripes. Abdomen fuscous, 

 slender at the base, gradually broadening posteriorly; venter 

 dusky, posterior and lateral margins inclined to dusky yellow. 

 Legs and coxa; pale, tarsi infuscated; fore metatarsus about 

 one and one-fifth times, the second fore tarsal joint is about 



