346 Mr. IF’. W. Edwards’ Notes on British Mycetophilidae. 
M. crassicornis, Winn, I cannot see how to distinguish 
this from M. fasciata, Mg., and consider that there is only 
one rather variable species. M. annulicoxa, Mik, 1s 
evidently a synonym of M. crassicornis, Winn. 
M. vittata of the List (and probably of Meigen) is, I feel 
sure, only a variety of the female of M. lutea. 
M. pusilla, Mg. Dingwall (May 1911) and Loch Assynt 
(June 1911—J.W.Y.). These specimens perhaps repre- 
sent the true M. pusilla. The M. pusilla of our list 
is apparently an undescribed species, but the material is 
too poor and scanty to describe. 
M. maculata, Mg. This very distinct species, though 
previously recorded as British, was omitted from the Liss 
of 1901. The British Museum possesses three specimens 
from Felden, Herts (A. Piffard). It resembles M. phalerata, 
but has bare wings, and two blackish marks on the posterior 
portion of the mesonotum. The latter character, together 
with the different wing-markings, will also serve to dis- 
tinguish it from M. angulata. 
*M. grandis, Lundstr. Bowness, Westmoreland 
(G.H.V.). 
CErROPLATUS, Bosc. 
*C. testaceus, Dalm. This species has been bred in the 
New Forest by Dr. Sharp in some numbers, and some have 
been collected in the same locality by Mr. F.C. Adams. It 
is in the British List as C. tipuloides, Bosc. 
The species was at first thought to be undescribed, and 
figures of the wing and male genitalia were accordingly 
prepared (figs. 3 and 4), but I am now convinced that it 
is CU. lestaceus. Dalman described the antennae as 15- 
joited, but he regarded the first joint as an articuliform 
process, and evidently overlooked the minute round 
terminal (17th) joint. There is no other disagreement 
between our specimens and the description (Analecta Ent., 
p. 98). The author described the scutellum as pale 
testaceous; it is usually darker in the middle. It is 
doubtful, however, whether Zetterstedt had identified the 
species correctly. 
C. lineatus, F. New Forest (D.S.); Monk’s Soham, 
Suffolk (C.M.); Cambridge (F.J.); Mordiford, Hereford 
(J.H.W.) The genus Cerotelion, Rnd., has been used for 
this species, but it seems inadvisable to separate it from 
Ceroplatus, since C. sesioides (as described by Winnertz) 
