LEPIDOPTERA HETEROCERA. 163 



Genus 19. DIODOSIDA. 



Fcem. Corpus sat gracile. Caput breve. Proboscis medio- 

 criter louga. Antennae subuliformes, subsetosae, thorace paullo 

 longiores. Abdomen oblanceolatum, thorace vix duplo longius. 

 Pedes sat validi, non longi ; tibiae posticae calcaribus quatuor me- 

 diocriter longis. Alaelatiusculae, non longae ; anticae subacuroinatae 

 vix hamatae, apud costam subrectae, margine exteriore mediocriter 

 obliquo, apud medium subconvexo ; posticae apice rotundatae, mar- 

 gine exteriore apud angulum interiorem subconcavo. 



Female. Body rather slender. Head short. Proboscis mode- 

 rately long. Palpi as usual. Antennae subfiliform, minutely 

 setose, a little longer than the thorax. Abdomen oblanceolate, 

 nearly twice the length of the thorax. Legs rather stout, uot long ; 

 hind tibia? with four moderately long spurs. Wings rather broad, 

 not long. Fore wings almost straight along the costa, slightly acu- 

 minated and hardly hooked at the tips, moderately oblique along 

 the exterior border, which is slightly convex in the middle ; inferior 

 veins much as usual. Hind wings rounded at the tips; exterior 

 border slightly concave towards the interior angle. 



1. DlODOSIDA MUEINA. 



Foem. Cinereo-ferruginea; abdomen viita interrupta nigricante ; 

 alee anticce cinerea, nitentes, maculis duabus (una subcostali, 

 altera subapicali) nigricantibus fasciaque ferruginosa ; pos- 

 ticae rufce,fusco marginatce, ciliis albidis. 



Female. Cinereous-ferruginous. Antennae whitish. Abdo- 

 men with an indistinct interrupted blackish stripe. Fore wings 

 cinereous, somewhat shining, with two blackish spots, the one sub- 

 costal, the other subapical ; an indistinct ferruginous band behind 

 the subcostal spot; exterior veins slightly dotted with black. Hind 

 wings reddish, with brown borders; ciliae whitish. Length of the 

 body 12 lines ; of the wings 22 lines. 



a. Port Natal. From Mr. Stevens' collection. 



Genus 20. DEILEPHILA. 



Corpus robustum. Caput prominens, conicum. Proboscis 

 mediocriter longa. Antennae validae. Abdomen oblanceolatum, 

 thorace non duplo longius. Pedes longi, graciles ; tibiae posticae 

 calcaribus quatuor longis. Alae longae, angustae; anticae acumi- 



