r 298 ) 



The long eiid-scgiii(>iit of tin- iiiitpima is a very rctnarkalile clmractcr, witli 

 wliicli we meet in this subfamily only in Protambnhjx and Oxi/amhah/x. Kirby put 

 Miis genus among liis Afarrof/lomnat'. The species remind one indeed very much of 

 (I'lnrlcii. 



253. Cypa decolor. 



*S„i/'r:iilhii.H ,l-fi,l,ii- Walker, /.< . viii. p. 25"). ii. ID (IHJtJ) (Hindostan ;— Mas. Cvford). 



S ? . Tliere are two subspecies, which differ in the outline of the forewing. 

 The Smeriiitfnis decolor of Schanfnss, Nunq. Otios. p. 14 (1«71), generally quoted 

 under the present species, is doubtless an Oxyambulyx, most likely snhocellafa ? , 

 wrongly identified by Kaden as the decolor of the B. M. (British Museum). 



$ . Tenth tergite (PI. XXIV. f. 2U) suddenly narrowed beyond basal fourth, 

 slender, obtusely pointed ; no sternite. ( 'lasper (PI. XXXIII. f. 7) elongate, 

 triangular, apex obtuse, almost truncate ; a dorso-basal flat process {pdb') ; harpe 

 with two ])rocesses, one basal, slender, rod-like, clubbed, apex denticulated, tlie 

 other more distal, triangular, directed dorso-distal, reaching dorsal margin of clasper, 

 the dorsal j)art of the inner surface of the clasper proximally of this process convex, 

 below tliis convex part an oblique fold. Penis-sheath (PI. XXX. f. 32) armed at 

 end with a horizontal slender process. 



?. Eighth tergite (PI. XVII. f. ]()) peculiar: mesially grooved, the groove 

 widened at the end of the plate, very narrow in proximal two-thirds, the edges of 

 the apical cavity irregularly and minutely notched ; proximally of this groove there 

 is a hole, most likely the orifice of a gland, the groove having the appearance of 

 serving as a channel for bringing the fluid of the supposed gland to the apical cavity. 

 ^'aginal plate (PI. XMI. f. 9. 11) with the antevaginal part short, not strongly 

 chitiuised ; postvaginal part a large triangular, rounded-truncate plate. 



Early stages not known. 



Huh. North India to Tenasserim and Ceylon ; New Guinea. 



a. C. decolor decolor. 



*Siiteiiiithus decii/cir Walker, I.e. (Hindostan ; — Mus. Oxford). 



Mima/! decolor, Butler, Trans. Zonl. Soc. Loud. ix. p. 583. n. 3 (1877) (Darjiling) ; Cot. & Swinh.. 



Cat. Moths Ind. i. p. 24. n. 131 (1887) (Darjiling ; Tavoy, this spec. O- 

 'Cypa incniif/riitnx Butler, lllustr. Ti/p. Sjjedm. Lep. Ilet. B. M. v. 12. t. 80. f. 8. 9 (1881) (Darjiling ;— 



Mus. Brit.) ; Cot. & Swinh., I.e. p. 13. n. 77 (1887) (Sikhim). 

 Ci/pa decolor, Moore, Joiini. As. Sor. Bengal Iv. 2. p. 97. n. 1 (1886) (Ponsokai, Siam) ; Swinh., 



Trans. Ent. Soc. Lond. p. 164. n. 19 (1890) (Tavoy) ; Kirby, Cat. Lep. Het. i. p. 640. n. 2 



(1892) ; Hamps., in Blanf , Fauna Brit. Ind., Moths i. p. 71. n. 94. fig. 43 ((J) (1892) (Sikhim; 



Tavoy) ; Swinh., Cat. Lep. Ilet. Mus. Ox. i. p. 26. n. 101 (1892) ; Dudg., Journ. Bomhay 



N. H. Soc. xi. p. 407. n. 94 (1898) (Sikhim, 4500 ft., ix.). 



c??. Distal margin of forewing irregular, prominently lobed at R^ Vaginal 

 plate see PI. XVII. f. 9. 



Hab. North India to Shan States. 



In the Tring Museum 2 <?cf , 6 ? ? from ISikhim. 



b. C. decolor ferruginea. 



*Cypa /erruginea Walker, I.e. x.\xi. p. 42 (1864) (Ceylon ; —Mus. Brit.); ^oisA., Spec. Gen. Lep. 

 Hit. i. p. 63 (1875) (Ceylon) ; Butl., Trans. Zool. Soc. Lond. ix. p. 554 (1877) ; Moore, Lq). 

 Ceylon ii. p. 8. t. 79. f . 3 ( ? ) (1882) ; Cot. & Swinh., I.e. p. 14. n. 78 (1887) (Ceylon) ; Kirby, 

 l.c. n. 1 (1892) ; Hamps., in Blanf., Fauna Brit. Ind., Moths i. p. 72. n. 95 (1892). 



