24. 



GASTROPACHA QUERCIFOLIA. 



Lappet Moth. 



Order Lepidoptera. Fam. Bombycidae hat.^ LcacJi, 

 Type of the Genus Bombyx qucrcifolia Linn. 



Gastkopacha Ochs., Germ., Leach. Bombyx Linn., Fab., Lat., 



HaiD. 



Antennas recurvate, setaceous, strongly bipectinated ; first joint 



large, with a long tuft of hair on the internal aide, nearly alike 



in both sexes, (f. 1. female unlenna.) 



Labrum attached to the head. (6. a.) 



Mandibles obsolete. 



Maxilla distant, broad, flat, short, membranaceous (G. c), arising 



just below the pharynx. (6. f.) 



PaljJi 2, projecting like a beak, approximating (6. e. shows their 



insertion), porrected, compressed, hairy (4.) ; three-jointed, sub- 



cylindric ; second joint long, slightly curved ; third, obtuse 



(4. a.). 

 Head with a tuft of hair projecting in front. (7.) Thorax not crested. 

 Abdomen thick, especially in the female. Wings dentated, superior 

 ones when at rest dcfiexed; the inferior projecting beyond them. Ti- 

 biae : anterior ones sliort, with a curved, compressed spi)ie on the in- 

 ternal side, at the base of which is a long brush of hairs. (8. a.) 

 Tarsi 5 -jointed, terminated by strong claws, bristles, and pulvilli. 

 Larva hairy, with \Q feet, the hinder ones formed for walking, with 

 fleshy appendages on each side the segments of the abdomen, which 

 conceal the feet, particularly the three anterior pair, an evident tu- 

 bercle on the penultimate joint. Pupa ivith its segments simple, co- 

 vered with a fine whitish powder, inclosed in an oblong cocoon loosely 

 formed of its thread and hairs. 



QuERCiFOLiA Linn. Syst. Nat. t. 2. p. 812. n. 18. Fab. Ent. Syst. t. 3. 

 pars 1 . p. 420. n. 42. Haw. Lep. Brit. p. 9.1. n. 19. 

 Chesnut colour, slightly tinged with whitish lilac. Rib of an- 

 tennae, palpi, and tarsi, black, changing to violaceous. Superior 

 wings dark-brown along the costa, with three black, oblique, 

 waved lines, more or less obscure, the central one of which is 

 visible beneath. Inferior wings at their base as pale as the abdo- 

 men, with an obscure, broad, transverse fascia, darkest towards 

 the edges : the female is much larger than tlie male, and has an 

 imperfect dark spot towards the centre of the upper wings. 



In the Author's and other Cabinets. 



