1518 
CATALOGUE OF 
Group 3. 
Mas P Corpus sat gracile. Antennae pectinatae, thorace non 
longiores. Abdomen alas posticas plus dimidio superans. Alae sat 
angustae ; anticae apud costarn subrectae, apice rotundatae, margine 
exteriore mediocriter obliquo. 
Male P Body rather slender. Antennae pectinated, not longer 
than the thorax. Abdomen extending for more than half its length 
beyond the hind wings. Wings rather narrow. Fore wings nearly 
straight in front, rounded at the tips, moderately oblique along the 
exterior border. 
13. COSSUS CCESTROIDES. 
Mas. Fusca ; thorax subpurpurascens ; alee anticce albido-tes - 
tacece , lituris costalibus et margin alibus obscurioribus , disco 
purpurascente , maculis basalibus et apud marginem interiorem 
nigris ; posticce pallidiores , maculis marginalibus. 
Cossus ccestroides, Boisd. ; Herr.-Scheeff. Lep. Exot. Sp. Ser. 1 , 
pi. 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. 
Fcem. Corpus crassum. Antennae thorace vix breviores. Ab- 
domen alas posticas triente superans. Alae longae, mediocriter latae; 
anticae apud costam convexae, apice rotundatae, margine exteriore 
perobliquo, interiore undulato. 
Female. Body thick. Antennae 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. 
