118 HAUSTKI.LATA. LEPIDOPTEKA. 



Genus CCLXXXVIIL— Roxana mihl. 



Palpi longer than the head^ compressed, ascending, densely clothed with loose 

 scales, subclavate, the terminal joint minute, exposed : maxilla short. 

 Antenna rather long, slender, pubescent within in the males, simple in the 

 females : head small, with a tuft of loose scales between the antennae and 

 on the crown : et/es globose : thorax faintly crested behind : wings deflexed 

 during repose, anterior elongate-triangular, rounded on the hinder margin, 

 the disc with pencilled metallic markings on a dark ground; posterior 

 ovate-triangular, entire : bodi/ rather long, slender, with a largish tuft at the 

 apex. in the males, and a small one in the females; the back in both sexes 

 with a ridge : legs short, posterior longest and stoutest. 



The only indigenous species of this genus, which forms a portion 

 of the genus Eucosma of Hubner, may be distinguished by its 

 markings alone from any other of the Tortricidae, exclusively of the 

 slight diversity in the structure of its trophi, &c. : it has been 

 included in the genus Carpocapsa, but from the typical species it 

 differs in having the palpi rather differently constructed, in reposing 

 ■with its wings deflexed, and in having the hinder margin of the 

 anterior ones rounded, with the disc more or less transversely pen- 

 cilled with metallic lines, on a dark ground. 



Sp. 1. arcuana. Alis anticisfusco-luteis, basi lineoUs tribus fasciisque sesquitertiis 

 arcuatis argenteis, macula discoidali atrd punciis argcnteis. (Exp. Alar. 

 7—8 lin.j 



Ph. To. arcuana. Linne. — Donovan, xi.pl. 364,. f. 1. — N. G. arcuana. Sieph. 

 Catal. ii. 180. No. 6984. 



Anterior wings luteous-brown, with three short silvery or lead-coloured 

 streaks, placed longitudinally at the base, then a transverse curved one 

 before the middle, followed by a short one on the costa, a larger one near 

 the apex, and a fourth very short, almost at the tip ; between the second 

 and fourth streaks is a pale creamy-white blotch, with an irregular black 

 patch spotted with silver, and bordered near the anal angle with a short 

 silvery line : posterior wings deep fuscous. 



The wings vary slightly in tint, and the silvery markings are sometimes rather 

 confluent at the base, and vary in width, as well as a little in form. 



Found amongst hazels and oaks, at the end of June, at Coombe 

 and Darenth woods, and in other places within the metropolitan 

 district. 



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