38 Mr. R. M‘Lachlan’s Monograph of the 
diverging, black ; app. inf. obtusely rounded, testaceous, with a few 
long black hairs on the edges. In the female the lamina from the 
upper margin of the last segment is of nearly equal breadth, pro- 
duced into a slight point in the middle; the superior valves short 
and conical; the lateral valves broad, not quite so long as the 
superior, slightly emarginate. 
Expanse of fore-wings 14—15 lines. 
Apparently a very local species, appearing in summer and 
autumn. Stephens gives the New Forest and neighbourhood of 
London as localities. It is abundant at Ruislip reservoir, Middle- 
sex, and I have it also from Folkestone and Killarney. 
This species is subject to great variation; Curtis’ types and 
most of those of Stephens have yellowish wings without markings, 
and sometimes without the dark pterostigma, but I have not seen 
any recent specimen from which this is absent; on the other 
hand, in some specimens the brown spots are all confluent, and in 
this case the whole wing is rich brown, excepting the anterior 
margin and the fenestrated spot and anastomosal space, which then 
appear very conspicuously paler. 
Notwithstanding the doubt expressed by Dr. Hagen as to the 
identity of Z. fulva and impura of Rambur, I am inclined to think 
(without having seen the types) that they form only one species. 
The descriptions of Rambur are good and the details on the 
appendices of both apply exactly to our insect; it is also to be 
remarked that of L, fulva he had only seen a single specimen, the 
narrowness of the wings in which might be owing to an accidental 
deformity. 
9. Limnephilus borealis, Zetterstedt. (FI. IX. fig. 23, app.) 
Phryganea borealis, Zett. Ins. Lapp. col. 1062, 7 (1840); 
Chetotaulius borealis, Kol. Gen. et Spec. Trichop. pt. 1, p. 
42, 2; Limnophilus borealis, Brauer, Neurop. Aust. p. 50, 
fig. 85, app.; M‘Lach. Ent. Ann. 1861, p. 57. 
Antenne brown, with paler annulations. Head dark fuscous, 
paler at the sides. Palpi reddish-testaceous. Prothorax thickly 
clothed with greyish hairs. Mesothorax fuscous. Anterior 
wings rather narrow, shining yellow; the costal margin slightly 
elevated at the pterostigma; the whole wing rather thickly clothed 
with short dusky pubescence; a rather large fuscous blotch 
extends obliquely from the base of the sixth apical cell to the 
anal angle, and there is sometimes a faint fuscous cloud in the 
apex; pterostigma piceous, very distinct, slightly prolonged ; 
fenestrated spot narrow; anastomosal space most evident on the 
