266 New Geometridae and Dioptidae in Joicey Collection 



21. Melinoessa {Hyphenophora) aemonia (Swinh.) restrictiflava 

 subsp. nov. 



Before describing this race it is necessary to amend Swinhoe's 

 description of the name-type (Trans. Ent. Soc. Lond. 1904, p. 498). At 

 the commencement the word "face" has dropped out, and it is not 

 noticed that the central band has a mixture (sometimes fairly strong) 

 of bright ferruginous scales. The " distorted band " is pale yellow, not 

 white. The " dark suffusion " distally to this is an ill-defined brown 

 band, occupying on the hind wing the proximal half of the area between 

 this and the subterminal line; the latter consists on both wings of a 

 series of dark intraneural dots, connected on the hind wing by an ill- 

 defined brown line. 



M. aemonia restrictiflava has the central band of the face often 

 almost entirely ferruginous ; yellow marking of the fore wing narrower, 

 only present between M 2 and SM 2 (without the anterior " dots towards 

 the apex " and without spots in cellule 3 and at abdominal margin), 

 rather more distally placed and slightly less oblique ; that of the hind 

 wing narrower and shorter, only developed from costal margin to radial 

 fold ; the brown band beyond it a little lighter or brighter ; subterminal 

 dots with more noticeable glossy band proximally. 



In addition the fore wing may be slightly less acute at apex and 

 the hind wing has a less marked tooth at the extremity of SC 2 . 



Cameroons : Bitje, Ja Kiver. 



A series including the type, also in other collections. The same 

 race reaches from Gold Coast to Belgian Congo. 



In the restriction of the yellow band this subspecies superficially 

 recalls palumb.ata Warr. (Nov. Zool. i, 402, Ivory Coast to Nigeria), which 

 has the brown band narrower, adjoining the subterminal leaden spots, 

 which are differently developed, &c. 



22. Pycnostega (?) leucochora sp. nov. 

 $ , 32 mm. 



Face and palpus blackish. Head and body inclining to black ; some 

 scattered whitish scales. Hind tibia dilated, with a groove containing 

 the hair-pencil. 



Fore wing without fovea ; proximally, costally and distally dull 

 chocolate-brown, varied with darker and lighter scales and with a sparse 

 sprinkling of metallic bluish-silvery ones ; a broad creamy- white median 

 area, with scattered shining-white scales ; the proximal boundary of 



