1518 CATALOGUE OF 
Group 3. 
Mas? Corpus sat gracile. Antenne pectinate, thorace non 
longiores. Abdomen alas posticas plus dimidio superans. Ale sat 
anguste ; antic apud costam subrecte, apice rotundate, margine 
exteriore mediocriter obliquo. 
Male? Body rather slender. Antenne pected: not longer 
than the thorax. Abdomen extending for more than half its length 
beyond the hind wings. Wings rather narrow. Tore wings nearly 
straight in front, rounded at the tips, moderately oblique along the 
exterior border. 
13. Cossus C@&STROIDES. 
Mas. Fusca; thorax subpurpurascens ; ale antice albido-tes- 
tacee, lituris costalibus et marginalibus obscurioribus, disco 
purpurascente, maculis basalibus et apud marginem tnteriorem 
nigris ; postice pallidiores, macults marginaltbus, 
Cossus ceestroides, Boisd.; Herr.-Scheff. Lép. Exot. Sp. Ser. 1, 
pl. 39, f. 41, (1853). 
Male. Brown. Thorax with a purplish tinge. Fore wings 
whitish testaceous; marks along the costa and along the exterior 
border darker testaceous ; disk purplish; two black spots near the 
base, and three or four along the interior border. Hind wings paler 
and somewhat spotted along the border. 
Brazil. 
Group 4. 
Fem. Corpus crassum. Antenne thorace vix breviores. Ab-- 
domen alas posticas triente superans. Ale longe, mediocriter late; 
antice apud costam convexe, apice rotundate, margine exteriore 
perobliquo, interiore undulato. 
Female. Body thick. Antenne hardly shorter than the tho- 
rax. Abdomen extending for about one-third of its length beyond 
the hind wings. Wings long, moderately broad. Fore wings 
somewhat convex in front, rounded at the tips, extremely oblique 
along the exterior border; interior border somewhat undulating. 
