546 Mr. J. H. Leech on Lepidoptera Heterocera 



Naxa contraria, sp. n. 



Antennae bipectinated in both sexes. Frenulum present ; 

 hind tibiae much dilated, with short terminal spurs. Arrange- 

 ment of black spots somewhat similar to that of JV. seriaria, 

 but there are two additional spots on primaries, one on middle 

 of inner margin, and one between it and the base of the wing ; 

 there is also a black spot on the middle of the abdominal 

 margin of secondaries. The marginal spots are not always 

 well formed. 



Expanse 50-60 millim. 



Eight specimens, from Chang-yang and Ichang, July. 



This species differs from N. margaritaria in its larger size, 

 stronger pectinations of antennae, absence of pearly reflection, 

 and presence of frenulum . 



Hob. Central China. 



Naxa montanaria, sp. n. 



Outer margin of secondaries rather straight from middle to 

 anal angle, which is more produced, as also is the apex of 

 primaries. Maculation similar to that of N. contraria, but 

 finer and less distinct, and the wings are more transparent. 



Expanse, <$ 58, ? 68 millim. 



Six male specimens and four females from Ornei-shan, 

 one male from Wa-shan, all taken in June. 



Hob. Western China. 



Naxa obliquaria, sp. n. 



Antennae finely serrated in both sexes. Frenulum present ; 

 hind tibiae much dilated. Apex of primaries rather acute. 

 Greyish white. All the wings have a blackish discal spot 

 and an oblique blackish line outwardly bordered with white 

 and angled towards costa of primaries. Fringes silky white, 

 preceded by a series of black spots. Under surface silky 

 white ; discal spots black and conspicuous ; the apices of 

 primaries black, and there is a spot of the same colour at 

 outer angle of secondaries ; fringes preceded by black spots 

 as above. 



Expanse 42-46 millim. 



A male specimen from Chow-pin-sa, June, and one example 

 of each sex from Omei-shan, July. 



Hob. Western China. 



Genus EMMECOSMIA. 



(Warren, Novit. Zool. iii. p. 118 (1896).) 



Emmecosmia bilinearia, sp. n. 

 Pale whity brown or ochreous brown. Primaries have two 



