Some New Forms of Malayan 

 Saturnidae, 



by 



J. Henry Watson. 



Antherea youngi (Nov. sp). 



Near assamensis but differs from it by its duller and vinous 

 colour. Forewing of male: apex more rounded than assamensis 

 (Helf. 1837) or Castanea (JORD. 1910) and whitish; differs 

 from caslanea above in having the ocelli larger and darker, 

 the marginal bands are not so pale, the outer of the two 

 contiguous lines on forevving is cream}- or yellowish. The 

 margins of hindwing without the yellow fringes as on assa- 

 mensis; those of forewing are very faint yellowish. Below, 

 not having a yellowish border of forewing and hindwing as 

 assamensis and castanea, and differs from them by its less 

 pronounced pinkish speckling. 



Dr. Jordan informs me that the sexual organs of male 

 do not agree with assamensis or castanea. 



Note. The marginal band of forewing in assamensis is 

 clay colour in male, much paler than the rest of wing ; in 

 female of same colour. In castanea it is pinkish in both sexes, 

 paler than rest of wings ; in youngi as in assamensis, paler 

 but almost same tone of vinous. Length of forewing 81 mm. 

 â type. 



1 d Type. Coll. J. H. Watson. 



2 ç$ç) Co-types. Coll. Museum Sarawak and Tring. 

 Habitat Bau, Sarawak, Borneo, H.S.Young October 191 1 



(Type). Tandjong Po, mouth of Sarawak River, Nov. 1911. 

 T. Zehnder in Sarawak Mus. (Co-type) and Kuching, 

 Borneo V, XII, 11. Bryan Mus. Tring Co-type. 



