1892.1 201 



rather indistinct black stripes, and tliree post-Butural outer dorsal central bristles ; 

 abdomen shining black and iniumculate, aluhu dull white with pale yellow borders ; 

 wings clear, with the stalk of the first posterior cell about half the length of the 

 outer cross vein. 



Not uncommon. I captured it in 1891 near Maidstone in Kent; I have also 

 receiTcd it from the Rev. E. N. Eloomfield of Guestling, and it has been bred from 

 Pterophorus tephradactylus by Mr. Bignell and Mr. Butler of Hastings. 



44.— TRYPHERA, Mgn. 

 Gen. ch., — Eyes hairy, approximate in male, wide apart in the 

 female ; antennae rather short, with the third joint about twice the 

 length of the second ; arista bare ; facialia nude ; wings with the 

 first posterior cell closed, and with a short stalk at the end, and the 

 outer cross vein almost coTitrally placed between the little cross vein 

 and the bend of the fourth. 



I introduced this genus into my table under the impression that one of its 

 species, viz., the T. umlrinervis of Zetterstedt had been found in Britain, but upon 

 careful examination I have determined that the specimens which I had so named, 

 as well as others that I had received from Germany under the same title, are only 

 examples of Exorista dubia. According to Zetterstedt, bis T. timbrinervis differs 

 irom E. dubia by having the third joint of the antennce linear, and only twice as 

 long as the second, instead of being thickened and fully thrice as long ; by the arista 

 being only biarticulate, instead of triarticulate ; and by the first posterior wing-cell 

 being always quite closed, and terminating at the apex of the wing, while in E. dubia 

 it is often slightly open and ending a little before the point of the wing. 



45.— LOWIA, Egger. 



Macquartia, p. Rnd. 



Gen. ch. — Species shining black ; eyes hairy ; frontalia straight, 

 narrow in male and wide in female ; antennae short, with the third 

 joint but little longer than the second ; arista pubescent ; facialia 

 nude ; abdomen rather wide and oval, with both discal and marginal 

 setae ; wings with the first posterior cell closed and stalked at the end. 



This genus closely resembles Macquartia, with which it was com- 

 bined by Eondani ; the only important distinction between them being 

 the closed and stalked wing-cell. 



L. BEEVIFRONS, End. 



Shining black ; abdomen with a greenish tinge ; facialia with central stripe and 

 sides black, the latter being elevated and glazed in the female ; face grey ; cheeks 

 bare ; antenna; black, with basal joints testaceous in the female ; arista rather short, 

 with the base thickened ; wings brunescent, with the stalk to the first posterior cell 

 short, it being about one-fourth of the length of the outer cross vein ; alulae brown ; 

 legs black. 



Rare. I captured both sexes near Bradford in 1877. 



Bradford, Yorks. : 



August, 1892. 



