105

British Species of Caddis-flies.

is a short, obtusely triangular, entire lobe, proceeding from themiddle of the upper margin of the last segment ; app. sup. shortand very broad, obtusely rounded ; app. intermed. yellow, straight,cylindrical, the tips dilated and abruptly turned upwards ; upperpenis-cover apparently absent ; app. inf. rather thick, obtuse,blackish at the base, closely adpressed against the lateral marginsof the last segment. In the female there are two short trun-cated lateral valves.

Expanse of fore-wings 11 —13 lines.

Apparently a scarce and local species. I possess it from Kewand Ringwood, and have seen specimens from Exeter, Burton-on- Trent , &c.

The large pale spot at the arculus is very conspicuous in livingexamples.

5. Leptocerus annuUcornis, Stephens. (PI. XII. figs. 14, 15, app.)

Leptocerus annuUcornis , Steph. (*) Ill. p. 199, 15 (1836) ; L.annulalus, Hag. (*) Ent. Ann. 1860, p. 70, 61 (not ofSteph.)

Antennae dark blackish-brown, distinctly annulated with whitefor two-thirds of their length. Head fuscous, clothed with whitehairs. Palpi greyish-fuscous. Mesothorax dark fuscous, withtwo 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; neurationindistinct. 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), withpale lateral lines. In the male there is a small lobe from themiddle of the upper margin of the last segment ; app. sup. shortand broad, subtriangular ; below the app. sup. is a very largebroad, obtusely rounded, yellow upper penis-cover j app. inf.dark brown, cylindrical, directed upwards, perhaps with a verysmall second (terminal) joint; beneath the cover lies the short,thick and obtuse penis. In the female there are tw’o short, broad,obtusely rounded lateral valves.

Expanse of fore-wings 9—10 lines.

Not a common species ; appearing in summer. I possess itfrom Burton-on-Trent and Kew, and have seen specimens fromother 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