NOCTUID.E. — ORTHOSIA. 145 



lunular spots ; the stigmata are rather dusky, with reddish or griseous mai-- 

 gins, the anterior one being in general nearly obsolete : cilia dusky, rosy at the 

 tip ; abdomen and posterior wings fuscescent ; fringe rosy. 



This varies slightly in the colour of its anterior wings, and in the intensity of 

 its markings ; in some specimens the stigmata are remote, in others united : 

 the size also varies considerably. 



Caterpillar green or reddish-brown, sprinkled with white on the back, with a 

 yellowish lateral line ; head green, irrorated with white and black : it feeds 

 on the oak, wild rose, &c. in June ; and the imago appears towards the end 

 of March. 



By far the most abundant species of this genus ; frequenting all 

 parts throughout the metropolitan district, and occurring copiously 

 on the oaks in Richmond Park. " Epping." — Mr. H. Doubleday. 



Sp. 10. pusiUa. Alls anticis griseis stigmatihus contiguis obsoletis Uneolaque 

 J'uscescentibus, strigfique marg'inali punctorumfuscorum. (Exp. aJar. 1 unc.) 

 No. pusilla. Haworth.— Or. pusilla, Steph. Catal. part ii. p. 72. No. 6138. 



Smaller than, but similar to, the preceding insect ; anterior wings more rounded 

 or retuse, the stigmata less remote, the reniform one larger, more oblong, and 

 darker, with a stout, fuscous, subinterrupted lineola, extending from the base 

 to the anterior stigma, which is wanting in O. cruda : abdomen very stout, 

 with a black spot at the apex. 



Probably a mere variety of the foregoing insect. 



Taken in company with the last described species in Richmond 

 Park. 



B. Anterior wings acute at the apex, the hinder margin slightly repanded. 



(Antennae of the males usually ciliated). Flight autumnal. 

 Sp. 11. litura. Alls anticis griseo-ficscis, fascia ohscuriore liturisque mai-ginalibiis 



nigris. (Exp. alar. 1 unc. 2 — 6 Un.) 

 PI. No. litura. Linne. — Or. litura. Steph. Catal. part ii. p. 72. No. 6139. 



Head and thorax pale griseous-brown ; anterior wings darker, with a black 

 transverse costal streak at the base, a second before the middle, from which 

 arises an undulated striga, then two other dusky central spots opposite the 

 stigmata, which are brownish, with whitish margins, and between them is 

 frequently an angulated dusky fascia reaching from the costa to the inner 

 margin ; behind the posterior stigma is the usual arcuated striga, and between 

 it and the posterior margin an obscure, but greatly undulated one, arising 

 from an oblique black lineola near the apex of the costa, the space between 

 the two strigae dusky, forming an arcuated fascia : abdomen, posterior wings, 

 and cilia, dusky. 



The colour is deeper, and the markings, more distinct in some specimens than 

 in others ; and the stigmata are occasionally united. 



Caterpillar green or yellowish, with a dusky Hne on the back, edged with 

 whitish, and a whitish or yellow lateral line ; head pale brown : it feeds on 

 Haustellata. Vol. II. 1st May, 1829. l 



