TINETD.E.— CRAMBUS. 319 



Sp. 3. Arbustorum. A/is anticis immaculatis sericeis argenieo'snlphureis, 



postkisjiiscis. (Exp. Alar. 11 — 13 lin.) 

 Cr. Arbustorum. Fabricius.—Sfeph. Catal. ii. 218. No. 7462. 

 Anterior wings entirely of a shining immaculate silken silvery hue, with a 



sulphureous tinpe : posterior fuscous, with white cilia. 

 Rather variable in tint, and also in size. 



Not uncommon in the neighbourhood of the metropolis in July and 

 August ; I have frequently taken it at the Hermitage : it also occurs 

 in the New Forest and near Dover. 



Sp. 4. argentellus. Alls anticis immaculatis, argenttis, sericeis, posticis paJlidl 



fuscescentibus. (Exp. Alar. 10 — 13 lin.) 

 Ph. Ti. argentella. Linne.—Cr. argentellus. Stepk. Catal. ii. 218. No. 7463. 



— Selagia, Hiihner. 

 Anterior wings of an immaculate glossy silken silvery hue, with lighter cilia : 



posterior pale brownish, with white cilia. 

 Slightly variable in colour and in size. 



Found in grassy places, especially where chalk abounds, through- 

 out the metropolitan district : extremely abvmdant about Dover in 

 July and August. " Caernarvon."" — C. C. Bahington, Esq. 



Sp. 5. dealbellus. Alls anticis immaculatis, argenteis, sericco-nitidis, posticis 



sericeo-albis. (Exp. Alar. 1 unc. 1 lin.) 

 Ti. dealbella. Tkunberg?—Cr. dealbellus. Steph. Catal. ii. 218. iVo. 7464. 

 Anterior wings of an immaculate glossy silvery white, with a satiny lustre: 



posterior wings of a silken- white, with brighter cilia. 

 It is possible that this and the three preceding insects may be varieties of one 



inconstant species, but they appear very different. 



Taken occasionally in chalky districts near London, and in Devon- 

 shire, in June and July. 



fSp. 6. tentaculellus. Alis anticis subemarginatis, spadiceis, lineis longitudina- 

 libus costaque a basi pone medium, argenteis, posticis albis. (Exp. Alar. 

 1 unc. 4 lin.) 



Ti. tentaculella. Hilbner Cr. tentaculellus. Steph. Catal. ii. 218. A^o.7466. 



Ancylolomia, Hilbner. 



Anterior wings bay-coloured, with the costa to beyond the middle silvery ; 

 on the disc are, first a slender silvery line parallel with, and near to, the 

 costa, which sends off two or three small twigs towards the apex, next a 

 broader streak nearly in the middle, and a third near the inner margin, with 

 a small twig at the base : near the hinder margin is a whitish streak, and a 



