2-46 MODERN SYSTEM. 



Sp. 1. Cos. Ligniperda {gozX moth). 



I'ltulccna (Bonibyx) Cossus. Linne. 



Inhabits Europe. The larva feeds on the internal parts of the willow, 

 ash, and oak. The celebrated Lyonnett has immortalized himself by 

 his laborious work on the anatomy of the larva and perfect insect. 

 The caterpillar diffuses a scent, by which its residence may fre- 

 quently be made known to those passing such trees as are much in- 

 fested by it. It remains three years in ihis state, when it spins a 

 strong web intermixed with particles of wood, and changes into 

 the chrysalis, A\hich it does in the month of May; and in June the 

 perfect insect may be found sticking to the trunks of trees (gene- 

 rally willows) early in the morning and in the evening. 



I once found the larva in an old oak near Norwood, in the month 

 of January. Mr. Standish informs me, that those which feed on the 

 wood of the oak ajre paler in colour than those which feed on the 

 Vsiilow. 



Genus 333. ZEUZERA. Latr., Leach. Bombyx. Hitbner. He- 

 piALus. Sc/irnnk. Phal.-ena (Noctua). Lumi. Cossus. I'abr. 

 Antenna setaceous, of the males pectinated at their base ; of the fe- 

 males entirely simple, with the exception of their base, which is to- 

 inentose. 

 Sp. 1. Zeu. JEsctdi (wood leopard-moth). 



Inhabits Europe. In England it is rather rare; but maybe found against 

 trees in St. James's Park in July, if industriously sought after. 



Stirps 2. — Wings broad and spreading: larva more or less hairy, its 

 hinder legs formed for walking : pupa with its segments simple. 

 Genus 334. SATURNIA. Schrank, Leach. Piial^na (Attacus). 

 Linne.. Bombyx. Fahr., H'ubner, Latr. 

 Wings horizontal; a/itoi?jtf; subcylindric : of the male doubly pecti- 

 nated : hinder wings simple. 

 Sp. 1. Sat. Pavonia ?h/«o/' (emperor moth). 



Stirps 3. — IT7?/gs defiexed : /arr^e more or less hairy, its hinder legs 

 formed for walking: pupa with its segments simple. 



" * Anlennte in both sexes pectinated.''^ 



Genus 33.5. LIPARIS. Och., Germ., Leach's MSS. IIypogymxa. 



Hub. 

 Palpi porrected, hairy, coiri posed of two joints, the last of which is in- 



crassated at its extremity : tongue obsolete : antenna setaceous. 

 Sp. 1. i//j. JVit»//acAa (black arches). Sp. 2. i//?. t?is/;«?" (gipsy moth) . 



Genus 336. LARIA. Schntnk, Lxach, Germar. Oroya. Och., 

 DASYcniRA. Hubncr. 

 Pstlpi very hairy, three-jointed : last joint minute linear and almost 

 naked : ton'iuc obsolete : antcnnce liliform. 



