2 1 \ LLOVD S NATURAL HISTORY. 



changes to a pupa wiiliin the case. Fig. 3 represents the sus- 

 pended case of a male. The pupa of the male is brown, and 

 rather long, with a rust-coloured ring on the abdominal seg- 

 ments, the front somewhat carinated, and each segment fur- 

 nished with a double series of dorsal prickles. The pupa of 

 the female is of the same colour, but much thicker. 



The wings of the male measure about i^ inch in expanse ; 

 and the body is i^ inch in length. The wings are black, 

 slightly glossed with purple, the fore-wings rather long and 

 narrow, the hind-wings shorter, and slightly produced at the 

 anal angle. The abdomen is long and extensile, the tarsi red- 

 dish, and the front of the head pale ; the antennae are strongly 

 pectinated from the base to the middle, and serrated beyond 



(Fig. 4). 



The female more resembles a pupa than a perfect insect, 

 being enclosed in a tough envelope without even the three 

 principal divisions of the body being clearly defined. Not only 

 the mouth-parts but even the antennae are absent, and the legs 

 are very short and rudimentary, and destitute of claws. The 

 body is brownish, clothed with woolly hair towards each ex- 

 tremity, and the eyes are reddish (Fig. 5). 



GENUS CRYPTOTHELEA. 

 Cryptotheka, Duncan, in Jardine's Nat. Libr. Exot. Moths, p. 



115(1841). 

 LansdowJiia, Heylaerts, Ann. Soc. Ent. Belg. xxv. p. 65 (i88i)» 



The male has the antennae pectinated throughout, the pec- 

 tinations gradually diminishing in length towards the extremity ; 

 wings broad, rounded; body slender, not longer than the hind- 

 wings ; the legs slender. Female apterous, pubescent, not 

 leaving the case. 



A considerable- number of Indian, African, and Australian 

 species are referred to this genus, besides the typical species, 

 which we have figured. 



