( 202 ) 



The difFeveuces in the genital annntnre between the Indian and Malaj'an males 

 are so very marked, that one cannot tail noticing them when dissecting a specimen. 

 Judging from these organs alone one might be induced to treat the specimens as 

 belonging to at least two species. On examining, however, a series from Borneo 

 and Java we find that the difterences are less obvions in some specimens than in 

 others, and we believe that the material from Malacca, Tenasserim and Burma will 

 show intergradations between tlie armature of the Indian and Ceylonese and the 

 Maliiyau mules. For the present, the Indian and Ceylonese races stand quite apart 

 from the others. Tlieir characters are partly very strange ; for both subspecies 

 share the broadly sjiodn-shaiied ventro-distal jtrocess of the harpe and the more 

 proximal position of the (middle part of the) submarginal line of the forewing with 

 another species of North India (littirata), a similarity in these compatriots which is 

 surely not mimetic resemblance. 



a. 0. stibslriyilis auripeutiis. 



"Ambubj.c auripeiiiiis Moore, Prui\ Zoul. 8w. Loud. p. 388 (1870) (Ceylon ; -Mus. Dublin) ; id..Lq> 

 Ceylon ii. p. 11. t. 70. f. 1 (<^). la (0- lb (;;) (1882) ; Cot. & Swinh., Cul. .Volhn hid. i. p. 24. 

 D. 128 (1887) (Cejlon) ; Kirby, Cat. Lei>. Ilet. i. p. 675. n. lu (1802) (Ceylon). 



Ambul>j.r. suhstrigilis, Hampson, in Blanf.. Fauna Bril. Ind., Moths i. p. 77. n. 103 (1802) (partial) ; 

 id., lUiisli: Typ. Rpecim. Lep. Het. B. M. ix. p. 2. n. 20 (180.3) (Kandy). 



. - S. Body below deeper yellow than in North Indian suhsfi igilis. Markings 

 of wings less heavy ; suhinarginal lilack line of fore^ving vestigial above, absent 



below ; long scales of fringe of hindwing while. Process pm of harpe shorter 



and. slenderer than in substr. sitbslrigilis (PI. XXXII. f. 2) ; process of penis-sUeath 

 stouter. 



?. Not known. 



Early stages see above. 



Ilab. Ceylon. 



Type in the Dublin Museum. A second S in the British Museum. 



b. 0. substi-igilis substrigilis (PI. VIII. f 2, S) 



*Sphinx (Ambuli/x) substrigilis Westwood, Ic. (1848) (Silhet ;— Mus. Brit.). 



Ambid/ix substrigilis, Walker, Li-t I.cp. Ins. B. M. viii. p. 122. n. 3 (185Li) (Silhet) ; Moore, Proc. 



Zool. Soc. Loud. p. 703 (1865) (Bengal); id., I.e. p. 676 (1867) (partim ; = maadifera ex errorel !); 



Boi.sd., Spec. Gen. Lip. Hit. i. p. 188. n. 11 (1875) (partim) ; Bull., Trans. Zool. Soc. Land. ix. 



p. 570. n. 3 (1877) ; Xvirby, Cat. Lep. Het. i. p. 675. n. 15 (1802) ; Hamps. in Blanf., Fauna Bril. 



Ind., Moths i. p. 77. n. 103 (1802) (partim); Roth.sch., Xov. Zool. i. p. 87 (1894) Cpaitiui) ; 



Dudg., Journ. Bombay N. H. Soc. xi. p. 408. n. 102 (1808) (partim). 

 Anibulyx phihmon Boisduval, Coiisid. Lep. Guatemala p. 68 (1870). 

 (?) Ambulyx substrigilis, Moore, Prof. Zool. Soc. Lond. p. 344 (1878) (Taoo, 3500 ft.) ; Swinb., Trans. 



Ent. Soc. Lond. p. 164. n. 18 (1890) (Taoo). 



<J ? . A small form ; resembling 0. liturata very much, as the basal patch of 

 the hindwing is often pale tawny and not conspicuous. cJ more grey on the fore- 

 wing than in liturata and the Malayan forms o( suhstrigUis. agreeing in this respect 

 better with sericeipennis. The basal patch of the hindwing less sharply defined in 

 either sex, and generally less black than in the Malayan races, the submarginal line 

 more arched, farther away from the margins at R- both above and below, the 

 line sharply marked and deep in tint below. 



S. The distal process of the harpe very broad, spoon-shaped, shorter than 

 in liturata, markedly different from the pointed process of the Malayan forms 



