354 Mr. F. W. Edwards’ Notes on British Mycetophilidae. 
confused with P. fasciata, as the abdomen, though usually 
more or less unicolorous, is apt (especially in the female) 
to develop dark bands. The two can most readily be 
distinguished by the character given in the key; in ad- 
dition, P. wnicolor is usually smaller. Hypopygium, figs. 
32 and 33. 
*TELLADEPICHORIA, Beck. 
H. servula, Wik. (Platyura servula, W\k.). This is the 
species referred to by Jenkinson as “the dark species of 
Asindulum which is as common as A. flavum.” It 1s com- 
mon in the New Forest (F.J., D.S., C.G.L., F.C.A.) and 
specimens have also been taken at Whittlesford, Cambs. 
(C.G.L.) and Crowborough (F.J.). 
The thorax is blackish-brown rather than ferruginous, 
as Walker described it; the type is in fairly good condition, 
so that the identification is certain. The proboscis is 
about the same length as in Asindulum rostratum, but 
much more slender; the anal vein is very short; the sub- 
costal cross-vein is present though very difficult to make 
out. Loew’s short description of Asindulum geranias 
applies in most respects to this species, but he states that 
the anal vein is not very much shortened. Becker's 
H. tenwipes, the type of the genus, must be extremely 
similar, the only discrepancy I can find between our insect 
and his being the statement that the proboscis is as long 
as the middle tibiae, while in H. servula it is considerably 
shorter; but for this I should have regarded H. Dale 
asasynonym Head, fig. 3 ; hypopygium, fig. 3 
The genera Asindulum aud Helladepichoria, Gioia very 
similar, must, I consider, be kept distinct, as they apparently 
represent separate developments from two different groups 
of Platyura. This is strongly indicated by a study of the 
hypopygia; that of H. servula is of a type similar to P. 
biumbrata, while those of the other species appear to show 
more affinity with the P. dorsalis group. 
AsINDULUM, Latr. 
*4. vostratum, Zett. This is the species which is in 
the List as A. flavum; Dr. Lundstrém has confirmed my 
identification by examining a specimen. The true A. 
flavum (which I have not seen) has a much longer proboscis. 
Head, fig. 36; hypopygium, figs. 57 and 38, 
