( 470 ) 



NEW SATUBNIIBAE. 

 Bv K. JORDAN. 



1. Antheraea castanea sp. ikiv. 



Similar to -1. assamensis Helf. (1837). Vppergitle of body and winjjs chestnnt, 



being of a much deejicr colour than in .1. assameiisis. Forewing more jiointed and 



its distal margin more deeply iucnrved ; the subraarginal line anteriorly nearer the 

 edge and posteriorly farther away from it than in assamensis, the marginal area more 

 extensively dusted with white; the veins blackish except beyond subraarginal lines ; 



tiie jiroximal fourth of the ocellus black. The inner discal line continued 



anteriorly around the ocellus and joining the antemediau line, in ? the white less 

 prominent than iu ? of ass'imensis. 



Underside also much darker than in assamensis, the white scaling therefore 

 more conspicuous ; both wings with a row of white snbmargiual cresceats. 



Genitalia likewise different. 



Four SS and three ? ? from the Khasia Hills, Assam. 



2. Salassa mesosa sp. nov. 



cJ?. In size intermediate lietweeu S. tola and inegastica; iu structure and 

 facies nearest to the latter. Mesonotum without the white transverse band of 

 iS'. mi'qasticn. Antenna a little darker. On the wings the bright ferruginous colour 

 more restricted, the vitreous discocellular spots much smaller ; the antemedian 

 line white as in <S'. megastica, but not quite so oblique posteriorly. On hiudwing 

 the orange ring of the ocellus not extended beyond the black discal line, the white 

 border of this line of nearly even width throughout, being anteriorly hanlly wider 

 than posteriorly; the black subraarginal line not bordered with white. On the 

 underside the white line of the forewing is not distinct at the costal edge ; that of 

 the hindwing crosses C bcA'ond the centre of this vein. 



<S. Antenna as iu .S'. megastica, but with only 44 to 46 segments. Vitreous 

 spot of forewing uot larger than in .S'. ^o/a, reversed comma-shaped, with three sharp 

 angles. Vitreous spot of hindwing about the same in size and shape as on fore- 

 wing, surrounded with black as in S. megastica, the black colour occupying much 

 more sjiace than the vitreons spot, incurved distally, the white Hue kidney-shaped. 



Genitalia : apical process of anal tergite longer and less curved thau iu 

 S. megastica ; the two lobes of the clasper a little farther apart. 



?. Kather more uniformly brown than the ? of 5. megastica; the ferruginous 

 discal band of the forewing narrower, prominent on the dark ground. Vitreous 

 spot of forewing triangular, its costal angle produced and curved distad, the 

 posterior side of the triangle (iu front of It ') 5 — 8 mm. long. Vitreous spot of 

 hindwing smaller than the one ou forewing, about the same size and shape as in 

 r? »S. megastica, reversed comraa-shai)e ; the black ring much as iu J,occni)yiug 

 more space than the vitreous spot, little or hardly at all incurved ou the distal 

 side, the white ring more prominent than in S. megastica. 



Several i 6 and ? ? from the Khasia Hills, Assam, 



