434 Mr J. H. Leech on Lepidoptera Heterocera 



Arichanna interruptaria, sp. n. 



Primaries whitish, powdered with blackish grey ; there 

 are three transverse bands interrupted by the brown neuration 

 and intersected by white or whitish lines ; discal spot black, 

 separated from a spot on costa by the brown subcostal ner- 

 vure ; from the lower end of discal spot there is a blackish 

 diffuse line, which appears to be part of the second or central 

 band. Secondaries whitish, powdered and freckled with 

 greyish ; discal spot blackish. Fringes pale brown, chequered 

 with darker, preceded by a brown line on secondaries and by 

 a row of black dots on primaries. Under surface pale brown, 

 powdered and freckled with darker : the primaries have a 

 smoky suffusion, a black discal spot, and indications of the 

 transverse bands of upperside ; the secondaries have a black 

 discal spot and dark brown wavy central band. Antenna3 of 

 the male ciliated. 



Expanse 42-46 millim. 



Two male specimens and four females from Omei-shan : 

 July and August. 



The markings are very similar to those of A. similaria, 

 but they are blackish rather than olive-brown, and the 

 neuration is brown instead of pale olive. The structure of 

 the antennae is quite different. 



Hob. Western China. 



Arichanna ramosa. 



Scotosia ramosa, Walk. Cat. Lep. Het. xxxv. p. 1688 (1866). 

 Arichanna ramosa. Hampson, Fauna Brit. lud., Moths, iii. p. 291 

 (1895). 



One female specimen from Pu-tsu-fong, July. 

 Distribution. Sikhim (Hampson} Western China. 



Arichanna similaria, sp. n. 



Male. Primaries white, powdered with brownish ; the 

 base is dark olive-brown, and there are four transverse bands 

 of the same colour interrupted by the broad pale olive 

 neuration ; the second and third of these bands unite on the 

 inner marginal area, where they represent a quadrate patch 

 the fourth is intersected by an interrupted white line, as also 

 is the third above the quadrate patch referred to. Second- 

 aries whitish, freckled with greyish ; central band and 

 incomplete submarginal band greyish ; discal spot blackish. 

 Fringes pale olive, chequered with darker. Under surface 

 whitish, powdered and freckled with greyish brown: primaries 

 suffused with shining fuscous except at apex secondaries 



