NYMPIIALID/E. MORPIIIN.Ti;. AMATIIUSIA. 2S9 



Costal neivure curved, but extending only to two-lhirds of the length of the costa. Subcostal 

 nervure branching very near its base, its first branch extending to the outer angle of the wing. 

 Diicoidal cell very narrow, open. Median nervure branching far from the base, with a con- 

 siderable distance between its first and second branches ; at about the same distance from the 

 base of its third branch as exists between the first and second branches is a thickening or 

 swelling of the disc of the wing between this branch and the discoidal nervule, forming, as it 

 were, an incomplete termination of the discoidal cell. Forelegs of the male small, slender ; 

 tarsus hairy, forming a slender brush of nearly equal thickness throughout. Of the female 

 considerably longer than those of the male, scaly ; femur much longer than the tibia ; tibia 

 and tarsus gradually but slenderly dilated to the tip, where it is obliquely truncate." 



" Larva long, hairy, especially about the head ; head\v\\\\. two short broad dcntated horns, 

 with two dark transverse bars between the first and second, and second and third thoracic 

 segments ; extremity of the body forked. Pupa long, boat-shaped, entire, head acuminated 

 and bifid." {.Extracted from IVestrojod'' s Gen. D L.) 



The genus Amathnsia comprises a few very handsome tropical Asiatic species of large size, 

 chiefly inhabiting the Malay Archipelago; like the rest of the subfamily they affect shady places, 

 and the typical species is crepuscular ; they have somewhat the appearance of the genus Kallima 

 on the unperside and in outline, but the tail of the hindwing is shorter, and the underside 

 has not the appearance of a leaf, it has numerous transverse stripes, with ocelli on the hindwing. 

 Within our limits the genus is only found in Rurma, and through the north-east corner of 

 Bengal to Sikkim, and again in the South Andamans. 



There are two distinct types of colouration, and the secondary sexual characters of the 

 male insect appear to differ. 



Key to tlio Indian species of Amathusia. 



A. Upperside brown, the apex and outer margin tinged with yellowish, with no broad transverse fascia on 



the forewing in either sex. Hindwing with a broad short tail at the anal angle. 



a. Male with lateral sexual tufts of hair along the abdomen, and with a tuft of hair below 

 the submedian nervure of the hindwing, and another placed in a pouch above it. 



275. A. PHiniPPUS, Burma ; Tenasserim ; Andaman Isles ; Malayana. 



B. Upperside blackish, forewing with a broad transverse fascia, blue in the male, yellow in the female. 



Hindwing with a narrower tail at the anal angle. 



a. Males generally, perhaps always, with a large dense tuft of hairs below the submedian 

 nervure opposite the middleof the abdomen on the upperside of the hindwing*. 

 ay. Male with the transverse fascia very broad, extending near the outer margin from 

 the second discoidal nervure to the submedian nervure. 



276. A. AMVTHAON, Sylhet. 



i5'.Male with the transverse fascia almost straight, regularly decreasing in width 

 towards the hinder angle, and extending near the outer margin from the 

 second median nervule to the hinder angle. 



277. A. WBSTvvooDir, Sylhet. 



e'. Male with the transverse fascia curved, scarcely decreasing in width till it terminates 

 near the outer margin, where it extends from the fold above the second median 

 nervule to just below the submedian nervure. 



278. A. PORTHEUS, N.-E. India ; Tenasserim. 



275. Amatiusia phidippus, Linnreus, 



Papilio f>hidippus,Wx\x\7e.y!.%, Syst. Nat., vol. i, pt. ii, p. 752, n. 37 (1767) ; id., Cramer, Pap. Ex., vol. 

 i, pi. Ixix, figs. A, B (177s), female ; MorpJio phidippus, Godart, Enc. Me'th., vol. ix, 439, n. 2 

 (1819) ; Amathnsia phidippus, Horsfield, Cat. Lep. E. I. C, pi, vii, figs. 10, larva ; loa, pupa ; ioi5 — h, 

 structure 0/ imago (1829) ; id., Doubleday, Hewitson, Gen, D. L , vol. ii, p. 327, pi., liv*, fig. 2 (1850) mnie • 

 id., Horsfield and, Moore, Cat, Lep. E. I. C, vol, i , p. 209, n. 428, pi. vi, figs. 4, larva ; 4a, pupa (1857) ; id., 

 Distant, Rhop Malay , p. 70, pi, vi, figs. 6, male ; 7, female (18S2), 



Habitat ; Burma ; Upper Tenasserim ; Andaman Isles ; Malay Peninsula and Archipelago. 

 Expanse : 4-0 to 4*4 inches. 



Description : " Male : Upperside : both ivings dark fuliginous-brown. Forerviug with 

 the costal and outer margins somewhat paler, and with a distinctly paler submarginal fascia, 



• See remarks on this group, p 2<):>. 



