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said to occur in Europe, Asia, Africa, and America. There are about 
a dozen European species, of which only three, grossulariw, rihesii, and 
vitripennis, are recorded as British in Walker's Diptera Britannica ; 
Stephens and Curtis, in their catalogues, mention a fourth, nitidicollis, 
wrhich I reinstated in the June number of this Magazine for last year, 
md I have now to add a fifth in latifasciatus, and perhaps a sixth in 
yiUens. Most, if not all, of the rest may be expected to occur in the 
British Isles. The European species are— 
L. Lineola, Zetterstedt, Dipt. Skan., ii, 714,16(1843). 
I. Vittiger, Zetterstedt, loc. cit., 714, 17 (1843). 
These two may be distinguished from all the rest by their black 
epistomal middle line ; lineola has a darker stigma and duller thorax 
than vittiger. Zetterstedt and Schiner record lineola as widely dis- 
tributed in Skandinavia, and rare in Austria, while vittiger is the 
rarer in Skandinavia, and the commoner in Austria. 
1. arossularice, Meigen. Sys. Bes., iii, 306, 48 (1822). This may be 
known by its entirely black antennae, duU coloured thorax, wholly 
yellow epistoma, and completely entire abdominal bands, without 
the trace of a notch. The base of the femora and the cox» being 
black, distinguish it from its nearest ally diaphanus. It is found 
uncommonly over nearly all Europe. Walker records it as British, 
but only says "Rare; in Mr. Saunders' collection (E.S.I.)."' 
I have seen one female specimen, probably from Sussex, but the 
usual British representatives are only large ribesii. 
. Diaphanus, Zetterstedt. Dipt. Skan., ii, 711, 12 (1843). Distin^^uished 
from the preceding by its smaller size, yellow front, and entirely 
yellow legs in the female, and with only the cox^ dark in the male 
It IS found rarely in Sweden and Austria, and probably over all 
central Europe, though generally in single specimens. 
Bihesii, Linne, Eauna Suecica. 1816 (1761). This is probably the 
commonest species of the genus throughout Europe; it may be 
known by its entirely yellow epistoma, dull thorax, antenna with 
the third joint pa'e beneath, scutellum clothed with mostly dark 
hairs, and slightly emarginate abdominal bands. There may be 
two species still under this, as specimens collected in large woods 
may nearly always be distinguished at a glance from those collected 
m gardens, by their darker and more compact appearance. Com- 
men throughout England. 
Vitripennis, Meigen, Sys. Bes., iii, 308, 50 (1822). I must say, 1 
