British Species of Caddis-flies. 105 
is a short, obtusely triangular, entire lobe, proceeding from the 
middle of the upper margin of the last segment ; app. sup. short 
and very broad, obtusely rounded ; app. intermed. yellow, straight, 
cylindrical, the tips dilated and abruptly turned upwards; upper 
penis-cover apparently absent ; app. inf. rather thick, obtuse, 
blackish at the base, closely adpressed against the lateral margins 
of the last segment. In the female there are two short trun- 
eated lateral valves, 
Expanse of fore-wings 11—13 lines. 
Apparently a scarce and local species. I possess it from Kew 
and Ringwood, and have seen specimens from Exeter, Burton-on- 
Trent, &c. 
The large pale spot at the arculus is very conspicuous in living 
examples. 
5. Leptocerus annulicornis, Stephens. (PI. XII. figs. 14, 15, app.) 
Leptocerus annulicornis, Steph, (*) Ill. p. 199, 15 (1836); Z. 
annulatus, Hag. (*) Ent. Ann, 1860, p. 70, 61 (not of 
Steph.) 
Antenne dark blackish-brown, distinctly annulated with white 
for two-thirds of their length. Head fuscous, clothed with white 
hairs. Palpi greyish-fuscous. Mesothorax dark fuscous, with 
two lines of white hairs down the middle. Anterior wings brown, 
slightly darker towards the apex ; a yellowish spot at the arculus 
(indistinct in dead specimens); apical fringes white; neuration 
indistinct. Posterior wings grey, subhyaline ; fringes grey, ex- 
cepting at the apical portion of the costa, where they are white. 
Legs whitish, Abdomen greyish (greenish when alive), with 
pale lateral lines. In the male there is a small lobe from the 
middle of the upper margin of the last segment; app. sup. short 
and broad, subtriangular; below the app. sup. is a very large 
broad, obtusely rounded, yellow upper penis-cover ; app. inf. 
dark brown, cylindrical, directed upwards, perhaps with a very 
small second (terminal) joint; beneath the cover lies the short, 
thick and obtuse penis. In the female there are two short, broad, 
obtusely rounded lateral valves, . 
Expanse of fore-wings 9—10 lines. 
Not a common species; appearing in summer. I possess it 
from Burton-on-Trent and Kew, and have seen specimens from 
other localities ; Stephens says ‘ near London.” 
This bears a certain resemblance to the last, but is smaller, 
and has the anterior wings narrower at the base and more dilated 
