British Species of Caddis-flies. 47 
long with blackish tips. In the female there are small hairy 
superior valves. 
Expanse of fore-wings 8—11 lines. 
Larva with the head, pronotum and mesonotum brown with a 
darker central line ; the pronotum with two lateral black points ; 
metanotum fawn-coloured, with four scaly points; abdomen fawn- 
coloured ; feet brown. (Pictet.) 
Case long, slightly curved, smaller at the posterior extremity, 
formed of sand and very small stones. (Pictet.) 
A common species in this country, appearing in summer and 
autumn, and probably frequenting both standing and running 
waters. I have reason to believe that this and the next frequently 
breed in spongy bogs. 
The varieties are very numerous, and from this cause the num- 
ber of synonyms is rather astonishing. Stephens, for instance, 
described it under six different names. The short acute fifth 
apical cell will at once distinguish it from all other native species; 
occasionally varieties do occur in which this cell reaches the anas- 
tomosis, but it always remains very acute. 
il. Fifth apical cell in the anterior nings reaching the 
anastomosis. 
17. Limnephilus centralis, Curtis. (Pl. X. figs. 9, 10, app.) 
Limnephilus centralis, Curt. (*) Phil. Mag. p. 124, 22 (1834); 
Steph. (*) Ill. p. 227, 43; Limnophilus centralis, Hag. (*) 
Ent. Ann. 1859, p. 85, 23; Limnephilus terminalis, Curt. (*) 
Phil. Mag. p. 124, 21 (1834); Z. ochraceus, Curt. (*) Phil. 
Mag. p. 124, 16 (1834); Phryganea Slava, Pict. (*) Re- 
cherch. p. 156, 25, pl. 10, fig. 2 (1834) ; Limnephilus flavus, 
Steph. (*) Ill. p. 226, 42; ZL. punctatus, Steph. (*) Ill. p. 
226, 44 (1837); LZ. elongatus, Steph. (*) Ill. p. 227, 45 
(1837); ZL. fuliginosus, Steph. (*) Ill. p. 227, 46 (1837) ; 
L. ustulatus, Steph. (*) Ill. p. 228, 48 (1837); Limnephila 
nebulosa, Ramb. Hist. Nat. Névrop. p. 477, 8 (1842). 
Antenne testaceous, with darker annulations. Palpi testaceous. 
Head, prothorax and mesothorax reddish, the prothorax with 
long reddish hairs. Anterior wings greyish-yellow with brownish 
markings, varying very much in number and intensity; there is 
usually a brownish dash from near the base to the apex, formed of 
small points united, leaving a pale apical space and often an ap- 
pearance of the fenestrated spot and anastomosal space; veins 
fuscous ; the fifth apical cell has atruncated base. Posterior wings 
