LEPIDOPTERA HETEROCERA. 971 



Genus 19. GONOIYIETA. 



Mas. Corpus valde robustum, dense pilosum. Palpi desti- 

 nati, porrecti, caput non superantes; articulus 2us longus ; 3as 

 minutus, conicus. Antennae thorace multo breviores, usque ad 

 apices pectinatae, ramis longissirais. Abdomen basi ad apicem 

 attenuatum, alas posticas dimidio superans. Pedes validi, pilosi, 

 antici longiusculi; tibiae posticse calcaribus apicalibus minimis. 

 Ala3 pilosae, opacae ; anticae longae et angustae, apud costam rectae, 

 apice acuminata?, margine exteriore perobliquo ; postieae truncate, 

 subcaudatae. 



Male. Body very stout, thickly pilose. Palpi distinct, porrect, 

 not extending so far as the head ; second joint long ; third minute, 

 conical. Antennae much shorter than the thorax, very deeply pec- 

 tinated, the branches extending to the tips. Abdomen tapering 

 from the base to the tip, extending for full half its length beyond 

 the hind wings. Legs stout, pilose; fore legs much longer than the 

 others ; hind tibiae with very minute apical spurs. Wings pilose, 

 opaque. Fore wings long and narrow, straight along the costa, 

 acuminated at the tips, extremely oblique along the exterior 

 border ; interior angle rounded and extremely obtuse ; four superior 

 veins ; first and second united near the base ; a fold intersecting 

 the discal areolet; second inferior vein more than four times further 

 from the third than from the first; third very much further from the 

 fourth than from the second; submedian vein indistinct, not united 

 to the internal. Hind wings truncated, much less than half the 

 length of the fore wings ; interior angle produced into a short tail. 



This genus and the following much resemble some genera of 

 Bombycidce, such as Megasoma and Borocera. 



1. GoNOMETA POSTICA. 



Mas. Ferrugineo-rufa, cyaneo aut purpureo varia ; caput antice, 

 pectoris vitta laterales et coxce testacece; antennce albce ramis 

 nigris ; abdomen fascia testacea ; ala posticce apud marginem 

 exterior em limpidce. 



Male. Ferruginous red, more or less tinged with a variable 

 blue or purple bloom. Head in front, a stripe on each side of the 

 pectus, and coxae, testaceous. Antennae white, with black branches. 

 Thorax with some short testaceous dorsal streaks which are occa- 

 sionally obsolete. Abdomen with a broad testaceous band at two- 



