150 RHOPALOCERA AFRIC.E AUSTRALIS. 



" Madagascar (environs of Tainatave)." — Boisd., Faune 

 Ent. de Mad., &c. 



Genus DIADEM A. 



Diadema, Boisd. 

 Nymphalis, Godt. 

 Apatura, Fab., Horsf. 



Imago. — Head rather large, wide, with a tuft of hairs on 

 forehead : eyes large, prominent, naked ; palpi rather stout, 

 elongate, divergent, projecting some distance in front of head, 

 but little ascendant, scaly, fringed with short hairs on basal 

 half of their inner-side ; antennce rather short, slender, with 

 an abruptly-formed, ovate club.* Thorax moderately robust, 

 hairy anteriorly and posteriorly : pterygodes remarkably 

 narrow, finely hairy. Fore-toings elongate : costa considerably 

 but gradually arched ; apical portion moderately produced, 

 rounded ; hind-margin concave in centre, slightly sinuate ; 

 anal angle rounded ; inner-margin moderately emarginate in 

 its median portion ; discoidal cell closed by very slender 

 nervules. Hind-wings large, rounded, somewhat truncate : 

 costa strongly arched near base, more slightly thence to apex; 

 hind-margin but little convex, moderately sinuate ; anal angle 

 rather marked and somewhat prominent; inner-margins 

 strongly convex for f of their length, forming a deep groove 

 which completely receives abdomen ; discoidal cell closed by 

 very slender nervule. Legs rather stout, of moderate length. 

 Ahdome7i moderately long and stout. 



Larva. — Elongate, tapering towards the head, but not 

 towards anal extremity ; — armed with stout, rigid branched 

 spines ; head with two elongate spines springing upwards from 

 its superior edge. 



Pupa. — Thick, much constricted at junction of thorax and 

 abdomen : head very bluntly bifid, anterior portion generally 

 having a truncate appearance ; on back of thorax a large 

 projection, slightly curving posteriorly; along back of abdomen 

 two rows of short, acute, tubercular processes, and a row of 

 similar smaller processes along each side. 



These characters of the Larva and Pupa are descriptive of 

 the figures of the early states of D. Auge, Cram., in Plate V 

 of Horsfield and Moore's Catalogue of Indian Lepidoptera. 



Three species of Diadema are known as natives of South 

 Africa, viz. : D. Salmacis, Drury, D. Anthedon (Boisd., MS.) 

 Doubl., and D. Bolina, Linn. The first of these is given on 



■* In D, Anihedon, Doubl., the club is more elougale and gradually formed. 



