324 Mr. J. H. Leech on Lepidoptera Heterocera 



a dark brown cloud above it on the costa. Secondaries have 

 a dusky transverse central shade (sometimes present also on 

 the primaries), and beyond this there is a black serrated line 

 followed by a band as on primaries ; submarginal line of the 

 ground-colour; discal spot blackish. Fringes concolorous 

 with the wings, preceded by an interrupted line. Under 

 surface whitish grey, a blackish discal spot and dark central 

 line on each wing. 



Expanse, <J 64-74, $ 83 millim. 



One male specimen and two females from Moupin and 

 a male from Omei-shan, July. 



Hob. Western China. 



Allied to B. recursaria, Walk., but distinguished by the 

 form of the transverse lines, and also by the rusty-brown 

 markings. 



Bistort recursaria. 



Boarmia recursaria. Walk. Cat. Lep. Het. xxi. p. 374 (1860). 

 Amphidasys superans, Butl. 111. Typ. Lep. Het. ii. p. 48. pi. xxxv. fig 1 . 3 



(1878). 

 Biston recursaria, Hampson, Fauna Brit. Ind., Moths, iii. p. 246 



(1895.) 



Several specimens in Fryer's collection. 



I captured examples at Nagasaki in May and at Shimonoseki 

 in July. My collectors in Western China obtained one female 

 specimen at Ta-chien-lu and another at Wa-shan, both in 

 June. 



Distribution. Sikhim ; Khasis ; Bassein ; Burma; Java 

 (Hampson); Japan; Kiushiu; Western China. 



Biston invenustaria. 

 Amphidasys invenustaria, Leech, Entom., Suppl. p. 43 (May 1891). 



Allied to B. recursaria, Walk. 



Several specimens from Oiwake in Fryer's collection. 



Var. sinicaria, nov. 



Differs from the type in having the transverse lines blacker 

 and the bands browner ; between the second and submarginal 

 lines there are some brownish clouds. 



In one female specimen the black lines are absent. 



My collectors obtained examples of this form at Wa-shan, 

 Pu-tsu-fong, Ni-tou, Chia-ting-fu, Chia-kou-ho, Chang, 

 yang. 



Distribution. Japan ; Central and Western China. 



