Mr. F. W. Edwards on British Limnobiidae. 211 
8. Large species; uniformly ochreous-brown, including the wings; 
legs stout . ; : : : squalida Lw. 
Smaller species; wings lighter; legs more slender. SO) 
9. Terminal flagellar joints elongate, especially in male, with long 
verticils . 2 : : : : -  nielseni Meij. 
All flagellar joints alike, oval, verticils shorter . P SOY 
10. Abdomen concolorous with thorax . ; -  verralli sp. n. 
Abdomen more or less darkened, except for the tip 
griseipennis Mg. 
E. trivialis Mg. In this species the radial cross-vein is 
sometimes placed slightly before the fork of R, and R,; 
such specimens might be mistaken for a Chedlotrichia, but the 
species is a true Lrioptera with a long sinuous axillary vein. 
E. diuturna Walk. The wings are narrower and the 
hair on the veins at the apex of the wings is even less 
noticeable than in LH. trivialis, and there are a number 
of shght differences in the hypopygium : the upper (inner) 
clasper is broader, and has several long hairs on its lower 
apical margin which are absent in #. trivialis ; the lower 
(outer) clasper is narrowed rather suddenly on its apical 
third instead of slightly and gradually from the base, this 
apical third only being black; there is no little projecting 
lobe at the base of the ventral side of the side pieces, 
and the aedoeagus is differently constructed. Walker’s 
diuturnus included two species; I propose to fix his name 
for this one as there seems to be no other name available. 
The wing-markings of the darkest specimens are very 
suggestive of Symplectomorpha stictica. 
Localities: Yarmouth, I. of W. and Winfrith, Dorset 
(Cockerell); Austwick, Yorks (Cheetham); Catacol, Arran 
(Waterston). 
E. limbata Lw. There is a pair of this very distinct 
species in the British Museum, presented by J. C. Dale in 
1864, and taken by him in Dorset. Another pair, also 
from Dale, is in Mr. Collin’s collection, named by Verrall 
#. lutea. 
E. macrophthalma Lw. This is probably fairly common 
and widely distributed. I have taken it at Hitchin (Herts.) 
and Snailbeach (Salop). 
E. meijerei sp. n. (Pl. I. fig. 8). 
Very similar to H. flavescens, differing only in the hypopygium 
(see fig. 8), which is more like, though not identical with, that of 
