British Species of Caddis-flies. 147 
A common species near Haslemere in Surrey, and I have also 
seen specimens from the Fen district, Kew and Dorsetshire. Like 
the last, it is probably overlooked. I believe it frequents stand- 
ing waters. 
The extraordinary form of the lobe and of the app. intermed. 
render the discrimination of this species easy. 
The female is unknown to me, unless it be the next following. 
4, Polycentropus Parfitti, n. sp. 
Antenne brown, annulated with yellow. Head blackish-fus- 
cous, thickly clothed with golden-yellow pubescence. Palpi 
fuscous. Mesothorax dark blackish-fuscous. Anterior wings 
pale greyish-brown, very thickly and evenly irrorated with small 
golden-yellow spots of uniform size; apical margin regularly 
spotted with yellow; costal fringe blackish, apical fringe dark 
grey. Posterior wings greyish, subhyaline; costal fringes dark 
blackish-grey, the rest pale grey ; subcostal vein yellowish. Ab- 
domen dark blackish-fuscous, the incisions of the segments some- 
what paler, especially beneath; the appendices yellow. Above 
there is a semicircular piece, forming a nearly complete tube; below 
this on the middle of the lateral margin is a small shining obtuse 
piece, curved inwards; below this again is an obtuse app. inf. 
Expanse of fore-wings 8—9 lines. 
Of this I have seen but two examples, taken at Taunton by 
Mr. Parfitt, on the 20th June, 1860. 
I am unable to decide whether these dry specimens are males 
or females. At any rate, they are totally different from anything 
with which I am acquainted ; and I hope, by an examination of 
fresh examples, to decide both the sex and the stability of the 
species. Supposing that they are females, the only known species 
to which they can be referred is P. subnebulosus, of which I have 
seen males only; nevertheless, that species is not in Mr, Parfitt’s 
Collection, and the insects here described hardly agree with it in 
ornamentation, though apparently identical in neuration. 
5. Polycentropus picicornis, Stephens. (Pl. XIV. fig. 2, app.) 
Polycentropus picicornis, Steph. (*) Ill. p. 177, 2 (1836); 
M‘Lach. Ent. Mo. Mag. vol. i. p. 28; Cyrnus pulchellus, 
Steph. (*) Ill. p. 175, 2, part (1836); Polycentropus pulchellus, 
Hag. (*) Ent. Ann. 1861, p. 5, 92. 
Antennz very dark fuscous, narrowly annulated with yellow ; 
‘paler in the female. Head dark fuscous, with rich golden-yellow 
hair. Palpi fuscous. Mesothorax dark fuscous, nearly black. 
L2 
