254 MAINK AGRICUIvTURAI, EXPKRIM1;nT STATION. I909. 



from the costa to the cubitus, over the prefurca ; another of 

 about the same size in the outer part of the cell R4+5; and 

 smaller ones in all the cells on the posterior side of the wing; 

 R2+3 runs into the costa a little beyond the tip of Ri. St. 

 Vincent Isl., W. I. 



7. Platyura clcgans Coquillett. 

 1895. clcgans Coquillett, Proc. Acad. Nat. Sc. Phila. 307. 



Male and female. Length 3.5 mm. Head black, lower part 

 of front and the face yellow ; antennas black, the two basal 

 joints yellow ; proboscis yellow, its apex and the palpi black. 

 Dorsum of thorax opaque brownish black, the sides, pleura and 

 scutellum, yellow ; metanotum brown, this color extending upon 

 the pleura to the middle coxge. Abdomen shining brownish- 

 black, the first segment, both ends of the second, apices of the 

 third and fourth and the whole of the fifth, yellow; first five 

 ventral segments also yellow. Halteres and legs yellow; tibiae 

 destitute of bristles. \\'ings grayish hyaline, marked with two 

 irregular brown crossbands and with two brown spots ; the first 

 band begins at Ri before its tip, is interrupted between the 

 branches of the cubitus, and stops before reaching the hind 

 margin of the wing, its posterior portion scarcely half as wide 

 as the costal part; the second band starts from the tip of Rs-fr^ 

 and stops at Cui a short distance before its tip, where the band 

 is scarcely one-fifth as wide as at the costa; midway between 

 these two bands is a large brown spot reaching from Cui to the 

 hind margin of the wing at the tip of the posterior branch ; a 

 brown cloud on R2+3, this branch terminating at twice its length 

 beyond the tip of Ri. Georgetown, Florida, May; North 

 Carolina. 



I have Seen specimens from Ithaca and Yonkers, N. Y. ; Wis- 

 consin and North Carolina. In the northern specimens the 

 middle of the mesonotum is yellow, leaving two distinct dark 

 lateral stripes ; agreeing in this respect with pictipennis which 

 appears to be closely related if not identical. In the Carolina 

 specimen the middle of the mesonotum is only slightly paler 

 brown than the sides. The fore metatarsus is about one-fifth 

 shorter than the tibia, and the subcostal vein ends about opposite 

 the base of the radial sector. 



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