NOCTUIDiE. LEUCANIA. 75 



behind the middle is a distinct row of black dots, forming an arcuated striga; 

 and on the posterior margin itself is a second row of similar but smaller spots; 

 cilia slightly flavescent: posterior wings ashy-gray, with the apex whitish, 

 the margin with a few small black dots ; cilia whitish. 



Very rare : there are specimens in tlie British Museum, of wliich 

 I know not the locality; but a single example, apparently of this 

 species, was captured by Mr. Chant at the end of Britannia-street, 

 City-road, leading to the fields, about three years since, in June. 



Sp. 4. impura. Alis anticis fusco-Jlavidis, venis postice albidis punciis tribus 

 nigris, jjosticis fusco-griseis. (Exp. alar. 1 unc. 4 — 5 lin.) 



No. impura. Hilbner. — Le. impura. Steph. Catal. part ii. p. 100. No. 6336. 

 Albin, pi. xxxiii. J^ 33. e — h. 



Head and thorax pale immaculate flavescent or ochraceous-brown ; anterior 

 wings the same, or slightly rufescent, with the nervures whitish, and the in- 

 tervals at the apex striated as it were with lighter and darker shades of fus- 

 cescent and cinereous; rather beyond the middle are three conspicuous black 

 dots, placed in a triangle, and on the margin itself is a row of extremely 

 minute ones, which are sometimes completely obliterated, and are rarely con- 

 tinuous, one or more being generally wanting : posterior wings deep fuscous, 

 with a darker central lunule; cilia pale. 



Var. /3. Anterior wings with a conspicuous transverse striga, composed of irre- 

 gular black dots towards the posterior margin, and a blackish imperfect hneola 

 at the base. 



Caterpillar dull straw-colour, with a few black specks, a slender dorsal line, and 

 a dirty yellowish lateral streak ; — it feeds on carices : — the imago abounds in 

 the middle of July. 



Extremely common in every woody place and thicket throughout 

 the metropolitan district, and I believe equally abundant in other 

 parts of the country: 



Sp. 5. punctina. Tota rufescens, alis anticis ipso margine postico fusco punc- 

 tatis, posticis pallidis angulum ani versus latissime cinereis. (Exp. alar. 1 unc. 

 5—6 Un.) 



No. punctina. Haworth. — Le. punctina. Steph. Catal. part ii. p. 100. No. 

 6337. 



Too closely allied to the preceding : diflPers in being entirely rufescent, with a 

 distinct row of black dots on the hinder margin of the anterior wings ; with 

 the posterior wings pale, but the inner margin broadly cinereous towards the 

 anal angle. 



Mr. Haworth says — " Of this I have seen but two specimens; had it occurred 

 as frequently as the last (Le. impura), I should have supposed its difference 

 from that species merely a sexual one," — in which opinion I fuUy coincide. 



Found near London, with the foregoing. 



