194 DIPTERA OF NORTH AMERICA. [PART IV. 



great cross-vein in E. solatrix ; the inner ends of the second 

 submarginal, of the first posterior, and of the discal cells are 

 nearly in one line ; the fourth vein originates from the fifth some- 

 what farther than usual from the root of the wing, and its origin 

 is very much arcuated. The abdomen has, a little before the 

 middle of the segments, a transverse impressed line, smooth and 

 shining at the bottom, interrupted in the middle, and of a darker 

 coloring than the surface of the abdomen ; these lines exist in 

 several other genera, but are not so conspicuous as here. The 

 foi'Ceps of the male is large, with an open space in the middle, 

 even when it is closed ; in structure it is not unlike that of the 

 typical Limnophilse ; only both appendages fastened to the sub- 

 cylindrical basal pieces seem to be of a horny texture ; the inner 

 one is flattened. The ovipositor is slender and arcuated. 



Epiphragma (from tnl, upon, and ^fajfxa, partition) was intro- 

 duced by me as a subgenus of Eimnophila in the Proc. Acad. Nat. 

 Sci. Philad. 1859, p. 238. It is sufficiently well characterized, 

 however, to be permanently separated from Limnophila. Besides 

 one European {E. picta Lin.) and two j^orth American species, 

 I have seen a couple of South American ones in European col- 

 lections ; E. histrio Schiner, from Columbia, is one of them 

 (Beise d. Novara, etc. p, 41). 



1. E. fascipeniiis Say. % and 9- — Al?e maculis pallide fuscis, 

 obscure fusco-niargiuatis, subrotundis, confluentibus, fasc-ias for- 

 maiitibus. 



Wings with pale brown spots, margined with dark brown, more or less 

 rounded, confluent, and forming bands across the wing. Long. corp. 

 0.45. 



Syn. Limnohia fascipennis Say, Journ. Ac. Nat. Sc. Phil. Ill, 19, 1. — Wied. 

 Auss. Zw. I, 31, 14. 

 Limnophila {Epiphraijiiia} pavonina 0. Sacked, Proc. Ac. Nat. Sc. Pbil. 

 1859, p. 239. 



Head brownish, with a yellowish, sericeous reflection ; palpi 

 brown ; antcnna3 brownish ; basal joint with a yellowish bloom ; 

 the two or three basal joints of the flagellum are reddish-yellow. 

 Thorax brownish ; the mesonotum has a broad chestnut brown 

 anterior margin ; the remainder of its surface, as well as the 

 scutellum and the metathorax, are of an opaque yellowish-gray ; 

 the separations of the usual stripes arc marked by pale brownish 



