British Species of Caddis-flies. 167 
Wings very broadly rounded at the apex. Legs with black 
thighs, and brownish-black tibize and tarsi. In the male the app. 
sup. are broad and obtuse, black; app. intermed. long, fine, 
needle-shaped, curved and testaceous ; app. inf. long and slender, 
very strongly curved inwards, the tips testaceous; the ventral 
margin of the last abdominal segment is produced in the middle 
into a narrow truncated lobe; the horny lobe on the ventral 
surface of the antepenultimate segment is subtriangular, black, 
testaceous at the apex. In the female the dorsal and ventral 
margins of the last segment form an egg-pouch, whence are pro- 
truded two broad and obtuse appendices. 
Expanse of fore-wings 45—54 lines. 
Occurs not uncommonly about standing and slowly-running 
waters in summer. 
The size (6 lines) given by Curtis makes me think that this 
is the species intended by him, but I have never seen an example 
so large, and when I compared my specimens with his, I did not 
notice that the latter exceeded mine in this particular, 1 am 
strongly of opinion that Marshamella of Stephens is identical, but 
the single type is a female, which has not appreciably narrower 
wings, as the description would lead us to expect. 
It appears evident to me that Dr. Hagen had this species 
before him, when drawing up the characters of the genus in the 
Stettin Zeitung, 1859, pp. 163, 164. The description of the ap- 
pendices there given agrees precisely with 6. pullata, but does 
not apply to other species, especially as regards the prolonged lobe 
from the middle of the ventral margin of the last abdominal seg- 
ment, which I do not see in any other. 
2, Berea Maurus, Curtis. (Pl. X1V. fig. 18, app.) 
Thya Maurus, Curt. Phil. Mag. p. 215, 4 (1834)?; Berea 
pygmea, Steph. Ill. p. 158, 2 (1836) ?. 
Antenne, head, palpi and abdomen black. Wings narrower 
than in the last species, the apex more pointed; black, with a 
faint brownish tinge, which is especially evident on the fringes of 
the posterior pair. Legs dark brownish-black, the tarsi some- 
what paler. In the inale the appendices differ greatly from B. 
pullata ; app. sup. long, slender, needle-shaped, curved strongly 
inwards, testaceous; app. intermed. apparently absent, but in 
their place is a long obtuse lobe proceeding from the upper mar- 
gin of the last segment; app. inf. placed on a triangular base, 
short, ending in two short widely divaricating branches, black ; 
