^iy liRIl'ISlI MOTHS 



on the costa, beneath which is a white and red blotch, the margin of the wing being pale grey-brown, separated 

 from the disc of tlic wing by a wliite submarginal streak. The hind wings are bright fulvous in the male, but 

 CTrey in tlie female, with an ocellus in the centre similar to that of the fore wings, succeeded by a slender dark 

 wav\' line, then a pale wavy bar and a broad dark bar ; the outer margin being dark-coluured, but separated 

 from the disc of the wing by a white streak. 



The caterpillar is yellowish-green with black bands, having gold-coloured tubercles emitting pencils of short 

 bristles. It is found in the autumn feeding upon willows, apple, heath, &c. Mr. Ilaworth gives the middle of 

 May and beginning of August as the times of its appearance in the winged state. It is sufficiently common 

 throughout England. 



The Continental Phal^na (Attacus) Tau, Linnseus, the type of Ochsenheimer's genus Aglaia, (figured in 

 AVood's Ind. Ent., t. 53, fig. 32,) has the wings of a testaceous colour, with a large somewhat violaceous eye 

 in the middle of each, the centre being marked with a white T. It was recorded by Martyn, in his Aurelian's 

 Vade Mecuni, as a British species, but no example is known. 



The remaining insects included in the present family (comprising the remaining species upon plate 10, and 

 all those represented in plates 11 and 12,) constitute a natural division, and were united together by Ochsen- 

 heimer under the names of Gastropacha, his typical species being Ilicifolia, Populifolia, Quercifolia, &c. This 

 group has been much divided by Mr. Stephens, chiefly from the characters of the preparatory states. Six of 

 his genera (namely, the six following, comprising the remainder of plate 10, except figures 15, l(j, and 17, and 

 the whole of plate 11, J have been reunited by Boisduval under the old generic name of Bombyx *, being however 

 retained as sub-sections. The majority of these sub-sections, however, appear to me to be of equal value with 

 the other groups — Odonestis, Dendrolimus, and Gastropacha. 



ERIOGASTER, Germar. (DASYSOMA, Hijbner.) 



In this group the abdomen of the females is terminated by a thick woolly mass (whence both generic names, 

 derived from the Greek). The body also is unusually stout, aud the wings rather short and sub-diaphanous. 

 The antcnniB are moderately bipectinated in the males, and serrated in the females. The palpi are short and 

 three-jointed. The larvte are cylindrical, each segment with two dorsal setigerous tubercles. They are 

 gregarious, inhabiting a common web, and form a compact egg-like cocoon on the surface of the ground 

 amongst leaves. 



SPECIES 1.— ERIOGASTER LANESTRIS. Plate X., Fig. 3, 4. 



Synonymt-s. — Phalana {Jiombi/x) laneslris, LinnEcus ; Donovan, 

 vol. 6, pi. 310; Albin, pi. 19,fis. 26 a-d; Wilkes, pi. 53; Harris, 

 Aurelian, pi. 25, fig. k — o. 



This pretty species varies from IJ to If;- inches in the expansion of the fore wings, which are of a reddish- 

 brown colour, witli a distinct patch of white at the base, a smaller one in the middle ; half way between which 



Eriogaster ianestrh, Germar ; Stephens ; Wood, Ind. Ent., t. 

 f. 47. 



-Dasysoma lanestris^ Hubner, Verz. bek. Schm. 



* The name Bombyx ought to be ret;uncd as the generic name of the silk-worm moth. The Freueli, however, designate it by the name 

 of Sericaria. 



