Sir G. F. Iliunpson on new Pynilidte. 455 



and resembles the typical form of Cercocehus alhigena in 

 possessing a brow-fringe and in the shortness of the iiair on 

 the cheeks. Hence it cannot be regarded, on the evidence, 

 as a further stage in the albincscence, if albinescence it be, 

 traceable IVom C. ulhujena lioihschildi to C. cotirjicus and 

 thence to C. IlamJi/ni. In fact, C Jamrachi stands by 

 itself. It may be at once distinguished from C. albijena 

 alhigena^ its nearest ally, by its uuiiormly whitish coloration. 

 A further point to be noted in connexion with this species 

 is its occurrence in a locality lying about 10° S. latitude in 

 tropical Africa. It is, therefore, the southernmost represen- 

 tative of the genus Cercocehus known up to the present time. 



EXPLANATION OF PLATE XL 



Cercocehus Jamrachi, sp. n. (Drawn from a photograph of the 

 living animal.) 



LXXII. — Descriplio7is of new Pyralidie of the Subfamilies 

 llydrocampinie and IScopariause. By Sir Gkouge F. 

 Hampson, Bart., B.A., F.Z.S., &c. 



[Continued from p. 393.] 



Genus Metaclysta, nov. 



Palpi upturned, the third joint long and acuminate ; 

 maxillary palpi moderate, filiform ; antennae of male some- 

 V hat laminate, with a tuft of liair on upperside of shaft near 

 base ; bind tibiie with a tuft of hair replacing the medial 

 spurs. Fore wing with convergent fringes of hair on basal 

 area below costa and above inner margin, with a fold be- 

 tween them forming an elongate pouch on underside; veins 

 2, 3, 5 from angle of cell, 4 absent; 10, 11 free. Hind 

 wing with vein 2 from towards angle of cell ; 3 and 5 from 

 angle, 4 absent ; the termen slightly excised below apex 

 and towards tornus. 



(1.) Metaclysta tetrommata, sp. n. 



c? • Head, thorax, and abdomen white marked with pale 

 yellow ; fore tibia? and tarsi blackish above. Fore wmg 

 pale yellow ; the costal edge black to beyond middle ; an 

 antemedial black spot above inner margin and a black 

 discoidal spot ; a white fascia from middle of cell to below 

 costa beyond the cell ; a curved white postmedial baud 



