LEPIDOPTERA HETEROOERA. 565 



Genus MEGASOMA, C. L. H. vi. 1446. 

 Megasoma bimacula. 

 bimacula, Wlk. Journ. Lin. Soc. vi. 176. 

 Borneo. 



Megasoma bimaculata. 



Mas. Fusca, subtus cervina, thorax postice maculis duabus 

 albidis ; alee anticce lineis nonnullis transversis nigricantibus 

 diffusis dentatis ; posticae pallidiores. 



Male. Brown, fawn-colour beneath except the disk of the 

 pectus. Antenna? very deeply pectinated. Hind part of the thorax 

 with two whitish spots, of which the hind one is much larger than 

 the fore one. Abdomen extending 1 very much beyond the hind 

 wings. Fore wings with four or live diffuse dentate transverse blackish 

 lines. Hind wings paler. Length of the body 20 lines.; of the 

 wings 36 lines. 



South Africa. In Mr. D'Urban's collection. 



Megasoma aculeata. 



Mas. Rufescente-cervina ; palpi crassi ; antenna latissime 

 pectinate; abdominis fasciculus apicalis rufo-fuscus; pedes 

 dense pilosi ; ala anticce breviuscula, apice rotundata, striga 

 postica lata lanceolata margineque pallidioribus, linea brevi 

 alba, fascia, lata exteriore cinerea valde dentata antice 

 attenuata et abbreviata, puncto discali nigro ; posticce rufes- 

 centes basi pallidiores . 



Male. Reddish fawn-colour. Palpi very stout, rather 

 prominent. Antennae very broadly pectinated. Abdomen extend- 

 ing beyond the hind wings; apical tuft reddish brown, very long. 

 Legs densely pilose. Wings rather short. Fore wings rounded at 

 the lips, pale along the costa and along the exterior border ; a broad 

 lanceolate paler streak along the interior border, with a short white 

 line on its fore side near the base ; a broad oblique exterior cinereous 

 band, which is attenuated and abbreviated towards the costa, and 

 is very deeply dentate along its inner side ; a black point in the disk 

 before the middle ; exterior border straight, very oblique. Hind 

 wings reddish, paler towards the base. Length of the body 11 lines; 

 of the wings 24 lines. 



a. Natal. From M. Gueinzins' collection. 



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