Heterocera from China, Japan, and Corea. 1 71) 



between the individuals from each region. One female 

 specimen in Fryer's collection is without the usual black 

 spots on primaries, and I have seen similar varieties of the 

 species in English collections. 



Distrihition. Europe.— Amurland ; Corea ; Japan ; 



SiKHIM. 



569. CEonistis nigricosta. 



(Eonistis nigricosta, Leech, Proc. Zool. Soc. Lond., 1888 

 p. 598, pi. XXX, fig. 11. 



The specimen described was in Fryer's collection, but 

 the exact locality where it was taken was not indicated. 



Habitat. Japan. 



570. CEonistis suhnigra, sp. n. 



Primaries pale stramineous, with two black spots similar to those 

 of female (U. quadra, Linn., but the lower one is not well defined. 

 Secondaries paler. Under surface coloured as above, but the basal 

 a.rea of primaries is black. 



Expanse 34 millim. 



One male specimen from Wa-shan, taken in July. 

 Hahitat. Western China. 



Genus Thysanoptyx. 

 Hampson, Fauna Brit. Ind., Moths, ii, p. 74 (1894). 



571. Thysanoptyx tetragona. 



Lithosia tetragona, Walk., Cat. Lep. Het., ii, p. 510 (1854). 

 TeiUisna tetragona, Butl., Trans. Ent. Soc. Lond., 1877, 



p. 355 ; 111. Typ. Lep. Het., v, p. 39, pi. Ixxxvi, fig. 14 



(1881). 

 Thysano2)tyx tetragona, Hampson, Fauna Brit. Ind., Moths, 



ii, p. 75 (1894). 

 A male specimen from Wa-shan and one from Chia- 

 ting-fu, both taken in July. 



Distribution. Sikhim ; Silhet; Nagas ; Nilgiris; 

 Borneo {Hampson) ; Western China. 



572. Thysanoptyx signata. 



lithosia signata, Walk., Cat. Lep. Het., ii, p. 495 (1854). 

 Tetdisna signata, Kirby, Cat. Lep. Het., p. 317 (1892). 



