N0T0D0NTID.1l. — ENDROMIS. 33 



the back slightly rugose, the sides obliquely streaked: j^upa folliculated,, 

 the folliculus placed on the surface of the ground. 



Peridea has considerable affinity in the final state to Stauropus, 

 and in the primary to Petasia and Endromis ; but, as shown in the 

 note appended to the genus Lasiocampa, it cannot be inserted in 

 its true situation in a linear series : it has subdiaphanous and 

 elongate wings, with the hinder margin entire, and one dorsal pro- 

 minence; by which characters, united with the serrated antennae, and 

 robustness of the legs, it may be known from the rest of the family. 

 The larva and imago, when touched, tremble as if in fear, and the 

 pupa is not buried beneath the surface of the ground. 



Sp. 1. serrata. Alis anticis griseis, strigis maculis hinulfique media ftiscis, 

 posticis paUidis, margine anteriori cinereo. (Exp. alar. $ 2 unc. 2 — 3 lin. : 

 $ 2 unc. 3—7 hn.) 



Bo. serrata. Thunberg.—Ve. serrata. Steph. Catal. No. 5982.— Ph. tritopha. 

 Bon. X. pi. 359. 



Griseous ; the anterior wings with two obsolete abbreviated dusky strigte at the 

 base, the basal one darkest, and the other before the middle ; the_^spaceK!be- 

 tween darker than the rest of the wings, and margined on the inner edge with 

 the dorsal prominence, which is black : the hinder part of the wing is cineras- 

 cent, and has a fuscous or obsoletely-rufescent lunule, edged with griseous, 

 near the middle, followed by a faint undulated striga, then two' lineo!£e|to- 

 wards the apex, and an irregular row of dull ferruginous spots towards the 

 hinder margin ; the latter has a row of dusky lunules, and the cilia are 

 brownish, immaculate: posterior wings yellowish- white, with the anterior 

 margin clouded with cinereous : abdomen brownish. 



Caterpillar Ught-green, with two whitish dorsal lines and red and yellow oblique 

 lateral stripes; legs red: it feeds on the oak, and is found in the autumn: the 

 imago appears at the end of June. 



Having employed the term Peridea to this genus as expressive of the habits of 

 the larva and imago, which appear to be rather generic than specific, I have 

 been compelled to drop the older namesof Fabricius and the Wiener Verzeich- 

 nis as being synonymous, and adopt the one used by Thunberg. 



Not common : I once took a fine pair on a stunted oak in Rich- 

 mond-park : and I have seen it captured both in Coombe and 

 Darenth woods : it likewise occurs at Birch-M'ood. 



Genus XLVII. — Endromis, Ochsenheimer. 



Palpi very short, hairy, compressed, recurved, obtuse : maxilla' obsolete. Antennae 



fihform, closely bipectinated in both sexes, the bipectinations shortest in the 



female, and in both sexes incurved, and terminating rather abruptly at the 



apex : head, thorax, and abdomen thickly clothed with very fine, long hairs, 



Haustellata. Vol. II. 1st November, 1828. d 



