1897.] CLASSIFICATIOM- OF THE THYEIDIDiE. 605 



In aid of the preparation of this paper and one on the subfamily 

 Chrysauyince I have to thank the Hon. Walter Eothschild for the 

 loan of the whole of his material to work out and classify ; Mr. 

 Herbert Druce for the loan of many species from the Neotropical 

 region ; Mr. W. Schaus for the gift of many species from the same 

 region ; Madame Eagonot for the loan of types described by her 

 husband ; Mr. Meyrick for help with the Australasian species ; 

 Mr. Elwes for the gift of types described by Mr. Meyrick from 

 the Malayan region ; Dr. Staudinger for the loan of types described 

 by Moschler and Pagenstecher ; and Prof. Poulton for the loan 

 of Oxford Museum types. As in my other papers on groups of 

 Pyrnlidce in the ' Proceedings ' for 1896 and the ' Transactions of 

 the Entomological Society ' for the same year, types of species in 

 the British Museum are marked with a t ; species I have examined 

 but which are not in the Museum, with a * ; whilst species I have 

 been unable to see and the classification of which is doubtful, are 

 enumerated at the end of the genera. When it is stated " Types 

 in Coll. Eothschild and B.M.," the type is in Mr. Eothschild's 

 collection, a co-type in the British Museum. 



Family THTEIDID^. 



Palpi slender ; maxillary palpi absent ; proboscis present. 

 Pore wing with vein 1 a forming a fork with 1 & ; 5 from or from 

 near lower angle of cell ; 6 to 11 usually from the cell. Hind 

 wing with vein 1 c absent ; 5 usually from near lower angle of 

 cell ; 8 approximated to 7 at upper angle of cell, or approximated 

 to or anastomosing with it after the angle. 



Larvce Pyrahform, with five pairs of prolegs, in the case of many 

 species being internal feeders. 



Key to the Genera. 



A. Both wings with the cell open 1. TA^m, p. 606. 



B. Fore wing with the cell closed, hind wing with it open. [p. 608. 

 a. Fore wing with veins 7, 8 stalked 4. Glanycus, 



h. Fore wing with veins 7, 8 from the cell. [p. 607. 



a ' . Palpi with the 3rd joint upturned 3. Hyperfhyris, 



J'. Palpi with the 3rd joint porrect 2. Herimba, p. 607. 



0. Both wings with the cell closed. 

 a. Hind wing with vein 5 from near lower angle of cell. 



a'. Fore wing with veins 7, 8 and 9, 10 stalked. [p. 610. 



a^. Palpi with the 3rd joint long and porrect 7. Pycnosoma, 



b^. Palpi with the 3rd joint short and upturned ... 8, Dixoa, p. 611. 

 b'. Fore wing with veins 7, 8 stalked ; 9 and 10 from 



cell. [p. 625. 



a^. Palpi upturned 15. Plaffiosella, 



6^. Palpi porrect 17. Camptochilus, 



c'. Fore wing with veins 7, 8 from cell ; 9, 10 stalked. [p. 627, 



a^. Palpi upturned ; fore wing with the apex not 



produced 9. Mathoris, 



6-. Palpi porrect ; fore wing with the apex ex- [p. 611. 



tremely produced 22. Vadata, p. 630. 



d'. Fore wing with vein 8 anastomosing with 9, 



which is given off from 10 to form an areole ... 16. Beguma,p. 626 



Pboc, Zooi. Soc— 1897, No. XL. 40 



