320 Mr. A. E. Cameron on the 
the imago may be easily identified by the aid of my figure. 
The ovipositor is rather characteristic. 
A. H.C. del. 
LONCHAEA CHOREA 2 X 10 (amount magnified). 
Many authors consider that Lonchaea chorea, ¥., is 
merely a variety of vaginalas, FIn. Schiner says in his 
account : “* L. chorea is very closely related to L. vaginalis, 
in fact they may be considered as varieties of one and the 
same species : at least, no author has been able to give any 
definite characters which will delimit the one from the 
other. . . . L. chorea is smaller than L. vaginalis; wings 
transparent, with weak veins. . . . Quite similar to the 
preceding species (L. vaginalis), from which it differs only 
in the relatively shorter ovipositor, and also apparently 
in the fact that the humeral cross-vein hes nearly opposite 
to the origin of the anterior branch of the auxiliary, whilst 
in L. vaginalis the humeral cross-vein is decidedly anterior.’ 
In my opinion Lonchaea chorea, F., and vaginalis, Fln., are 
merely synonymous names for one and the same species, 
and in the “ Katalog der Palaarktischen Dipteren,” Bd. 
iv, pp. 86-87 (1905), they are regarded as such. Mr. 
Austen kindly refers me to the fact that this synonymy is 
shown on the labels attached to the species of Lonchaea, 
in the Diptera collection of the Natural History Museum, 
South Kensington. I have had the opportunity of examin- 
ing the specimens there. 
