1446 CATALOGUE OF 



2. Catocephala eufosignata. 



Fusco-rufescens ; abdomen f us cum, lateribus rufo fasciculatis ; 

 alee ablongcB ; anticce apice pallida, macula media albida ; 

 posticm cinerea, apice fulvescentes, macula media minuta ob- 

 longa albida. 



Catocephala rufosignata, Blanch. Gay, Hist. Chile, vii. 63, 2. 

 Atlas, Zool. EnL Lep. pi. 6, f. 1. 



Conception. 



Genus 16. MEGASOMA. 



Corpus plus minusve crassum. Palpi porrecti, validi, pilosi, 

 rostri formes, caput superantes ; articulus 3us conicus. Antennae 

 subconvolutae, ihorace longiores aut paullo breviores. Abdomen 

 alas posticas saepissime superans. Pedes validi, pilosi ; tibiae pos- 

 ticae calcaribus duobus apicalibus minimis. Alae angustae aut 

 latiusculae ; anticae apud costam rectae aut vix convexae, apice sub- 

 rotundatae aut subacuminalae, margine exteriore plus minusve ob- 

 liquo. Mas. — Antennae late pectinatae, apices versus mediocriter 

 pectinatae. Corpus robustum ; saepe elongatum. Fcem. — Antennae 

 mediocriter pectinatae aut sub pectinatae. Abdomen crassum. Larva 

 collaris, cylindrica, elongata, pilosula, dorso mediusculo, tuberculis 

 minutis, pilosulis instructo, lateribus tuberculis pilosis longioribus. 

 Folliculum fusiforme, laxum. Pupa pilis fasciculatis induta. 



Megasoma, Boisd. ; Feisthamel, Ann. Soc. Ent. Fr. i. 340 



Duponch. 

 Phalaena-Bombyx, p., Cram. 

 Bombyx, p., Hubn. Bomb. 

 Streblote, p., Hubn. Verz. Schmett. 193. 

 Gastropacba, p., Herr.-Schaff. 





Body more or less thick. Palpi porrect, stout, pilose, rostriform, 

 extending rather beyond the head ; third joint conical. Antennae 

 slightly convoluted, longer or a little shorter than the thorax. Ab- 

 domen generally extending beyond the hind wings. Legs stout, 

 pilose; hind tibiae with two very minute apical spurs. Wings nar- 

 row, or rather broad. Fore wings straight or hardly convex along 

 the costa, slightly acuminated or slightly rounded at the tips, more 

 or less oblique along the exterior border; first and second inferior 

 veins approximate; third generally much more remote from the 

 fourth than from the second. Male. — Antennae deeply pectinated, 



