British Species of Caddis-flies. 79 
1. Notidobia ciliaris, Linné. 
(Pl. V. fig. 1, neuration; Pl. XI. figs. 20, 21, app.) 
Phryganea ciliaris, Linn. Faun, Suec. n. 1497 (1761); Miill. 
it Fridrichs. p. 84, 565; Zett. Ins. Lapp. col. 1070, 
; Notidobia ciliaris, Kol. Gan et Spec. Trichop. pt. 1, p. 
ae Brauer (*), Neurop. Aust. p. 43 ; Hag. (*) Ent. Ann. 
1859, p. 101, 44; Phryganea atrata, Fab. Ent. Syst. p. 
78, 17 (1793); Sericostoma atratum, Pict. (*) Recherch. p. 
178, 3, pl. 14, fig. 5; Ramb. Hist. Nat. Névrop. p. 497, 7 ; 
Notidobia atrata, Steph. (*) Dil, pe b86, 1 
Antenne dark brownish-black. Head and thorax shining 
black, scarcely hairy. Palpi black, the maxillary (in the males) 
clothed externally with long hairs. Anterior wings uniform black- 
ish, with a brownish tinge, somewhat shining. Posterior wings 
rather paler and more transparent. Legs with blackish thighs ; 
anterior and intermediate tibize and tarsi slightly testaceous ; pos- 
terior tibize and tarsi decidedly paler. Abdomen dull black. In 
the male the upper margin of the terminal segment has a sub- 
marginal fringe of short black hairs ; app. sup. very small and 
rounded; app. inf. large, testaceous, curved upwards, obtusely 
rounded and fringed externally with long black hairs; app. 
intermed. forming a tube above the long exserted penis, which 
rests between two sheaths, approximated at the base, but diverging 
at the tips. In the female the terminal segment forms an open 
mouth-shaped pouch, which is usually filled with a bundle of yel- 
lowish eggs; when empty, during life, there may be seen two small 
Bedeatces on each side of a short testaceous ovipositor. 
Expanse of fore-wings 10—11 lines. 
A common species in many localities, preferring clear running 
waters; appearing at the end of spring and in early summer, and 
is very conspicuous as it sits on the blades of grass bordering the 
stream. 
The character given by Rambur, “ailes supérieures sablées 
dans leur partie antérieure de petites marques blanchatres arron- 
dies,” is without doubt owing to those wings having been marked 
by the pressure of the fingers in the capture of the insect. 
Genus Gorra, Hoffmansegg. 
Antennz not so long as the wings, rather stout, basal joint thick 
and straight, longer than the head. Head nearly quadrate, very 
hairy. Maxillary palpi in the male small, somewhat spoon-shaped, 
up-curved and thickly clothed on the outside with long thick 
