152 [J"iy. 



half as long as the labials. Mead a)id face yellow, reddUli-brown at the sides. 

 Thorax reddish brown with ]iiirplish iridescence. Fo?-ewinr/s reddish brown, wilh a 

 yellowish triangular blotch on the middle of the costa, its apex obtusely truncate 

 above the fold, the whole wing shining in certain lights with very bright jjurple 

 iridescence ; the cilia around the apex reddish brown corresponding to the wing 

 colour, those along the dorsum inclining to greyish ochreous. Exp. «'., 11—13 

 mm. H'lndwitigs dark grey ; cilia rosy grey. Abdomen dark grey. Legs greyish, 

 the two anterior pairs with dark purplish brown femora. 



Type, S (8S78()). Mus Wlsm. 



Hah.: ALGERIA — Hainniaui-ps-Salaliin. Larva, Rhus dioica, 

 III-IY, excl. 12.111— 7. V.I003 ; 2l.IV.19U4. Five speeiinons. 



The co7ies made by the larvae were found in March and April, 

 the moths emerging at the end of that month, the specimen described 

 was bred April 24th, 1903. 



Allied io fribcrrfpnsis, I'rifzsche, and hrnccafdln, Stgr. 



474.— MTEMECOZELA, Z. 

 4642 : 1. — Mtrmecozela. diacona, s/j. n. 



Antennae pale fawn -ochreous. Palpi roughly clothed beneath, with short 

 projecting terminal joint, scarcely extending beyond the head ; brownish ochreous. 

 Head pale ochreous. Thorax smooth, whitish ochreous. Forewings elongate, 

 nari'ow, rounded at the apex ; pale whitish ochreous, the neuration more or less 

 clearly marked out with lines of fawn-brown, some disconnected dots of black 

 sealing along the central portion of the fold, and sometimes a few black scales on 

 the upper edge of the cell near the base, with small spots of the same around the 

 apex and termen at the base of the cilia whieh are pale fawn on their basal half, 

 becoming fawn-white specked with brown on their outer half. Exp. al. 22 — 33 mm. 

 IZindwings broader than the forewings, with depressed, obtusely rounded apex ; 

 shining, pale pearly grey ; cilia pearly whitish. Abdomen dark grey, anal tuft pale 

 fawn-ochreous. Legs pale fawn-oehreous. 



Type, ? (88929) ; (^ (8S94G). Mus. AVlsm. 



Hab. : ALGERIA— Biskra, 20.111.1895 {Eaion), l.TII— lO.IV. 

 1903 (TVlsm.); Hammam-es-Salahin, 7-18.IV.1903, 31.1— 21.IV.1904 

 (fVls7n.). Forty-five specimens. 



The majority of these specimens, taken at light at Biskra and 

 Hammam-es-Salahin in March and April, are ? ? , and have the habit, 

 even when apparently dead on the setting boards, of ejecting a 

 considerable mass of most delicate flutf from the body — this is so fine 

 that it has been found impossible to preserve it in connection with 

 any specimen. It is obviously a covering for the eggs sometimes 

 found deposited within it, but at present I know nothing of the larva 

 or its habits. The species came freely to light in the town of Biskra 

 as well as in the desert at Hammam-es-Salahin, but the first specimen 



