ARCTJID^. LI.MACODES. S5 



pubescent at the tip, with a small tuft of hairs at the end : head shghtly b.airy ; 

 thorax and abdomen scaly : luings o^2i.(\VLe, scaly : anterior subtriangular, acute, 

 posterior suborbiculate ; legs rather slender, posterior iihice short, robust, with 

 rather long spurs at the apex. Larva ovate, without legs, naked, depressed : 

 pupa folliculated. 



Heterogenea differs in the imago state from Limacodes by the 

 form of its anterior wings, which are trigonate and somewhat 

 truncated posteriorly ; the thorax and abdomen are rather slender, 

 and the antennae, at least in the female (the only sex I possess, or 

 have had an opportunity of examining), are more slender than 

 in that sex of Limacodes : the palpi are very minute. 



Sp. 1. Asellus. Plate 17. f. 2. Alis luteo fuscescentibus, posticis saturatioribus 



(Exp. alar. 6—9 lin.) 

 Hep. Asellus. Fabricius.—We. Asellus. Steph. Catal. No. 6043. 



Antennse, head, thorax and abdomen pale luteous, tinged with ferruginous ; an- 

 terior wings immaculate glossy, lutescent brown ; the cilia dusky : posterior 

 fuscous, slightly tinted with luteous, with dusky cilia. 



Caterpillar ovate, red, with a yellow dorsal line, spotted with black, the sides 

 green : it feeds on the poplar : the pupa brown, folliculated. 



Of this insect I have seen but five examples, in different cabinets ; 

 all but one of which were captured in the New Forest, near Lynd- 

 hurst. '' Kimpton."— i2ct;. G. T. Rudd. 



Genus LXXIX. — Limacodes, Latreille. 



Palpi short, a little ascending, densely clothed with scales and short hairs, tri- 

 articulate, basal joint short, second as long as the other two, robust, sub- 

 cylindric, terminal, the length of the first, slender, subfusiform, slightly acute : 

 maxilla; obsolete. Antennce simple, of the male stout, compressed, rather 

 serrated, pilose at the apex, of the females slender, a little serrated towards 

 the apex, which is acute : head moderate, very hairy : thorax stout : ab- 

 domen shghtly robust, a little tufted in both sexes at the apex, rather stoutest 

 in the females: wings opaque, deflexed; anterior elongate, subtrigonate, 

 posterior margins rounded: legs very stout, short; femora and tibiw with 

 a broad fringe of hairs ; anterior tibias simple, four posterior, with spurs at 

 the apex. Larva very stout, naked, limaciform, gibbous above, flat beneath, 

 apodous : pupa robust, obtuse, posteriorly acute ; enclosed in a dense ovate 

 foUiculus. 



Limacodes and the preceding genus differ in their metamor- 

 phoses from the other Arctiidae; but, in their final state, their re- 

 semblance is certainly greater to the insects of that family than to 

 the Bombycidse ; amongst which, or rather in the group containing 



