184 HAUSTELLATA. — LEPIDOPTERA. 



- Of this insect I have as yet seen but two examples of the female, 

 both of which were captured between Eltham and Birch-wood in 

 the spring of two successive years. 



Genus CLXXXV. — Alois, Curtis. 



Palpi porrectcd, squamous, terminal joint slightly exposed; triarticulate ; the two 

 basal joints nearly equal, rather long and slightly curved, the terminal minute, 

 ovate : maxillce moderately long. Antennw bipectinated in the males, excepting 

 some of the terminal joints, vphich are simple; simple, but pubescent within, 

 in the females: head small: eyes large: thorax slender, squamous: luings 

 extended horizontally during repose ; anterior entire, posterior indented : ab~ 

 £?o??iera long, with a truncated tuft at the apex in the males, shorter and stouter,, 

 with the apex acute, in the females : legs slender ; posterior with a tuft of hair 

 at the base. Larva smooth, cylindrical, with a slight swelling on the fourth 

 segment, the head nearly concealed by the first segment : pupa in a subter- 

 raneous web. 



The insects of this genus are mostly distinguished for their great 

 size, plain cinerascent or griseous colours, with transverse dusky 

 or black lines and dots disposed in striga? on the wings, and fre- 

 quently clouded with brown or darker hues ; the anterior wings 

 are entire on the hinder margin, as in the foregoing genus, and 

 the posterior regularly emarginated or indented : the males, as in 

 several other genera, are in some instances distinguished by having 

 a silky tuft of hairs attached to the base of the posterior tibise, 

 which have a longitudinal groove within to receive it. 



Sp. 1. repandata. Alls omnibus fusco griseoque cinereis nehulosis, strigd com-' 

 muni repandd nigra, aliSque posticd alba intus fused. (Exp. alar. 1 unc. 9 

 lin.— 2 unc.) 



Ph. Ge. repandata. LinnL — Don.y^.9,\.pl.SS3.f. 1. — Al. repandaria. Staph. 

 Catalpart ii. p. 124. No. 64,9'3. 



All the wings cinereous, clouded with fuscous and griseous, and more or less 

 irrorated with dusky, anterior with an obsolete slightly repanded dusky striga 

 towards the base, and a second more distinct and more repanded behind the 

 middle, and between these a dusky spot, which is sometimes ocellar ; towards 

 the hinder margin is a dentate repanded white striga, bordered within with 

 fuscous, and on the hinder margin is a series of lunular spots : cilia griseous 

 clouded with fuscous ; posterior wings paler, with a fuscous striga behind the 

 middle, edged exteriorly with whitish, and a whitish undulated striga near 

 the hinder margin, which latter has a row of united lunular black spots: cilia 

 griseous. 



