TRYPANUS. 



137 



Pupa. — Formed in the galleries, and furnished with spines by 

 which it can push itself forward ; sometimes enclosed in a 

 cocoon of wood or silk. 



Imago. — Of moderate or large size, with the mouth parts 

 rudimentary, the antennae pectinated to the middle or to the 

 tip, at least in the males ; frenulum present, consisting of 

 several bristles in the female ; cells of all the wings bisected 

 by a nervure, which forms a shorter or longer fork towards the 

 extremity ; fore-wings, with an accessory cell above the upper 

 extremity of the discoidal cell; hind-wings, with three sub- 

 median nervures. Body very stout, or long and tapering; 

 female provided with an ovipositor. 



The Zeuzeridce (or, as they are often called, Cossidce) are a 

 family numbering upwards of forty genera, and are widely 

 distributed. Their complicated neuration, coarsely-scaled 

 wings, and the habits of the larva show considerable resem- 

 blance to the Cast/iiidce, from which, however, they differ by 

 the structure of their antennae, and by their nocturnal habits. 



Some authors consider them to be allied to the Tor/ rices. 



GENUS TRYPANUS. 



Coss/zs, Fabricius, Fnt. Syst. iii. (2), p. 3 (1794); Ochsenheimer, 

 Schmett. Eur. iii , p. 89 (1810) ; Godart, Lepid. France, iv. 

 p. 41 (1822) ; Curtis, Brit. Ent. ii. pi. 60 (1825) ; Stephens, 

 111. Brit. Ent. Haust. ii. p. 9 (1828); Walker, List Lepid. 

 Ins. Brit. Mus. vi., p. 15 10 (1856). 



Trypanus^ Rambur, Cat. Lepid. de I'Andalousie, ii. p. 326 

 (1866). 



Body very stout, the abdomen extending somewhat beyond 

 the hind-wings; antennae longer than the thorax, pectinated to 

 the ti[) in the male, and serrated in the female. Wings broad; 



