British Species of Caddis-flies. 81 
cornis, Hag. (*) Ent. Ann. 1859, p. 102, 46; G. pilosa, 
Steph. (*) Ill. p. 187, 1 (1836); Lasiostoma fuloum, Ramb. 
Hist. Nat. Névrop. p. 492 (1842). 
Antennz reddish-ochreous, paler in the female. Head, palpi 
and prothorax ochreous. Mesothorax testaceous. Anterior 
- wings pale silky golden brown or brownish-ochreous, larger and 
paler in the female; the first apical cell scarcely reaches to the 
middle of the discoidal. Posterior wings smoky-grey, somewhat 
iridescent. Legs with the thighs slightly fuscous, tibia and tarsi 
ochreous. Abdomen reddish-brown. In the male the app. sup. 
are broadly and obtusely finger-shaped ; app. intermed. straight, 
fine, diverging slightly at the tips; app. inf. large, hairy, with 
the apex produced; penis long, much exserted, cylindrical, with a 
long flattened apex, apparently with two pairs of fine needle- 
shaped sheaths, of which the lateral pair are longer than the 
lower; ventral spines about nine in number, the middle one 
much longer than the others, the exterior ones very small. The 
female is provided with two long, hairy, pointed superior valves, 
Expanse of fore-wings 9—12 lines, 
Larva: Head, thoracic segments, and first abdominal segment 
yellowish, faintly spotted with darker ; two small black spots on 
the pronotum, and a median paler space. Legs yellowish, with a 
blackish line at the base externally, and also at the knees and 
apex. Abdomen dull greyish-yellow, with white respiratory fila- 
ments. Anal crotchets marked with black externally, and with a 
few long black hairs at the base. 
A common species in summer about running waters. 
There can be no doubt as to the identity of the types of capil- 
latum, Pict., and fuscicorne, Pict., yet he describes the larve of 
the two as differing considerably. The figure and description of 
that of capillatum agrees very nearly with what I consider to be 
the larva of this species, and which I have described above. 
That said to pertain to fuscicorne bears far more resemblance to 
the larva of a Silo in the markings, and I cannot but think that 
some error has occurred. 
Genus Sino, Curtis. 
Characters very similar to those of Goéra, but differing as fol- 
lows :—The maxillary palpi in the male are longer and more 
cylindrical, rather widely divaricating. The naked almost circular 
spot near the anal angle of the anterior wings is absent. In the 
male there is always a longitudinal fold or pouch near the middle 
VOL. V. THIRD SERIES, PART 1.— ocT. 1865, G 
