Orneodes, E2')erme7iia, Clirysocorys, and Ptero^liorus. 135 



of the seventh segment, but it loses also the maxillary 

 palpus, so that it is not in the direct line of the Pyraloids, 

 but a lateral branch. 



Clirysocorys retains the same formula of free segments 

 as Tinea, and has retained also the habit of emerging from 

 the cocoon for dehiscence. It has, moreover, entirely modi- 

 fied and altered the dorsal armature of the abdominal 

 segments which most forms that retain that habit pre- 

 serve, and has in all its stages attained a very modified 

 and isolated position. 



Pteropliorus presents as a pupa no point of connection 

 at all near to any of these others. As to its relation to 

 Clirysocorys, the pupge of both belong to the forms with 

 three free segments in the female and foar in the male. 

 This is, however, a very large group, and possesses forms 

 as far apart as Tortrix, 8esia^ Cossus, Tinea, Simfethis, 

 Castnia, etc., and it is quite possible, perhaps even pro- 

 bable, as I have already suggested, these have more than 

 one line of origin from lower forms, so that this does not 

 go very far in showing relationship. 



Pteropliorus has acquired a habit which no other pupa 

 in this section possesses, except Hyj^ercaUia, if it be a 

 true Pyraloid — viz., it attaches itself by a cremaster and 

 has no power of progression, and possesses no maxillary 

 palpus. Clirysocorys has a small maxillary palpus, and 

 possesses, in full vigour, the power of emerging from its 

 cocoon. Especially perhaps it has a very decided and 

 definite cocoon. I have not seen any Pterophorus cocoon 

 anywhere near it. The most important point of all, 

 perhap?, is that Clirysocorys has a very narrow pro- 

 thorax and a fairly large head-piece, and belongs there- 

 fore to the Tineid stirps; the reverse being the case 

 in Pterophorus, yet the minute trace of head-piece carries 

 the eye-cover on dehiscence. As regards its panoply of 

 hairs, spines, bristles, and other appendages, the different 

 species of Pterophorus present immense variety, some 

 being very smooth and plain and with a delicate shell, 

 others most elaborately clothed with hairs and spines of 

 various arrangements, but none are at all like Cliryso- 

 corys with its combination of hooked spines, recurved 

 hairs, and projecting spiracles. Acantliodactylus has some 

 resemblance to it, but it does not go beyond the 

 possession of recurved spines on certain segments, not 

 in detail at all like those of Clirysocorys. 



