244 Mr. J. II. Leech on Lepidoptera Heterocera 



The type of this species was taken at Yokohama by 

 Mr. Jonas. 

 Hob. Japan. 



Thalera lactearia. 



Phal. Geometra lactearia, Linn. Syst. Nat. x. p. 519 ; Clerck, Icon. 



pi. iii. fig. 12. 



lodis lactearia, Guen. Phal. i. p. 355. 

 Euchloris lactearia, Meyrick, Trans. Ent. Soc. Lond. 1892, p. 95. 



There was one example from Yesso in Fryer's collection 

 mixed up with Hemithea marina, Butl., and I took a 

 specimen at Gensan in June and at Ningpo in April. My 

 native collector obtained the species at Ningpo in June. 



Distribution. Europe ; Amur ; Corea ; Yesso ; Eastern 

 China. 



Thalera ambigua. 

 Thalassodes ambigua, Butl. 111. Typ. Lep. Het. ii. p. 49, pi. xxxvi. fig. 6 



(1878). >U*.^/7Ef > .*/i(/^; /itx .^; .' 



Specimens from Oiwake in Fryer's collection. I obtained 

 specimens at Nagahama in July, and my native collector at 

 Gensan also in July. 



Distribution. Corea ; Japan ; Kiushiu ; Ningpo. 



Thalera sinuosaria, sp. n. 



Green, each wing with two sinuous darker lines, the first 

 edged inwardly with whitish, the second edged outwardly, 

 expanding about the middle and above inner margin on pri- 

 maries and before abdominal margin on secondaries ; all the 

 wings have a dark discal ring centred with white. Fringes 

 slightly paler than the ground-colour and preceded on the 

 secondaries by a darker line. Under surface silky white, the 

 primaries tinged with greenish. 



Expanse 28-34 millim. 



Four examples of each sex. 



Ta-chien-lu, Moupin, Fu-tsu-fong, Wa-shan, Omei-shan, 

 and Ni-tou : June. 



Hob. Western China. 



Thalera flagellaria. 

 Hemithea flagellaria, Pouj. Ann. Soc. Ent. Fr. 1895, p. 310, pi. vi. fig. 8. 



Two male specimens from Moupin (Povjade). I have 

 received specimens from Ta-chien-lu, Ni-tou, Moupin, and 

 Chang-yang : June, July, and August. 



Hab. Central and Western China. 



