notodontid.t;. — noiodonta. 23 



behind the middle, terminating in a yellowish streak at tlie anal angle ; be- 

 tween these, on the disc, is a lunate dark spot, edged with yellowish ; and on 

 the hinder margin is a slightly waved bright chestnut brown irregular fascia, 

 bounded externally with whitish or yellowish ; cilia fuscous : posterior wings 

 dusky-brown, with an obscure whitish fascia; the cilia dusky, rather whitish 

 towards the outer edge : thorax dusky, with its centre rufescent : abdomen 

 brownish-gray : antenna; ferruginous. 



Var. /3. Sttph. Catal. 1. c. With the colour more vivid, the basal spot and the 

 strigae on the anterior wings more distinct, and of a brighter hue ; the poste- 

 rior wings whitish, with a paler fascia. 



This species varies considerably both in the markings and the intensity of its 

 colouring, as well as in magnitude. 



Caterpillar found in September ; it is green, with four dorsal eminences and a 

 reflexed tail : it feeds on the alder, beech, hazel, and poplar. 



Taken occasionally at Coombe and Darenth woods, and at 

 Norwood, the beginning of June, and in August. " Alderley, 

 Cheshire."" — Kev. C. Stanley. 



Sp. 2. perfusca. Plate 14. f. 2.— Alls anticis fusco-nehulosis, Uturd baseos 

 aniquejlavescentibus, strigisque duabus denticuJatis obsoletis. (Exp. alar. $ 

 1 unc. 6—8 lin.: $ 1 unc. 8 — 10 lin.) 



Bo. perfuscus } Haworth. — No. perfusca. Steph. Catal. No. 5969. 



Similar to the last, but of a totally different hue, and like its congener, extremely 

 variable in the intensity and brilliancy of its markings ; anterior wings fus- 

 cous, mixed with chestnut, with darker clouds, and an irregular yellowish 

 patch at the base, a slightly undulated striga before, and a flexuous and 

 deeply indented one behind, the middle, terminating at the costa and near the 

 anal angle, in a yellowish streak ; between the striga; is a fuscous streak, edged 

 with yellowish ; and the hinder margin has a slightly- waved row of reddish 

 or chestnut spots : cilia fuscous : posterior wings fuscous, with a light, rather 

 flexuous oblique striga arising from the anal angle : abdomen fuscous : thorax 

 dusky, sometimes rufescent in the middle. 



Whether this insect be truly a distinct species from the preceding, I will not 

 undertake to determine ; but, from the circumstance of all the specimens of 

 this (above thirty) which I have seen being of the peculiar dusky hue above 

 described, and all of No. Dromedarius (of which I have seen at least two 

 hundred specimens) being strongly rufescent, it appears probable. 



" Found near Dublin.'" — Rev. J. Bulwer and N. A. Vig-ors, 

 Esq.; to whom I am indebted for the specimens contained in my 

 collection. It has not, that I am aware of, occurred in England. 



Sp. 3. ziczac. Alls anticis brunneis spadiceo-undatis fasciatisque, striga lunari 

 ferrugined, posticis albidis, Jascid liturdque anali obsoletd. (Exp. alar. $ 1 

 unc. 8— 9 lin. : $ 1 unc. 10 — 11 lin.) 



Ph. Bo. ziczac. Liiinc. — Don. iv. pi. 119. — No. ziczac. Steph. Catal. No. 5970 



