NYMrHALIDiE. MORPHINE. CLEROME. 313 



FoREwiNG large, oval-triangular. Costa very much arched ; apex rounded ; outer margin 

 about two-thirds of the length of the costa, entire, slightly convex ; inner angle rounded ; 

 inner margin rather longer than the outer, slightly dilated at the base in the male. Costal 

 nervure extending to about two-thirds of the length of the costa ; subcostal nervure with its 

 first branch arising at about two-sevenths of the length of the wing ; second branch arising 

 at about three-fifths of the length of the wing ; third and fourth arising at 

 short distances beyond the second ; all these branches free, the fourth extending 

 to the tip of the wing ; upper disco-cellular nervule very short, arising nearly at one- 

 third of the length of the wing ; middle disco-cellular equally short, nearly transverse ; loxver 

 disco-cellular very long and curved, somewhat like the letter w, the extremity reaching nearly 

 to the middle of the wing, where it joins the third branch of the median nervure at a short 

 distance beyond its base, terminating the closed discoidal cell nearly in a point. HiNDWlNG 

 broadly ovate ; costa scarcely curved ; outer margin rounded ; anal angle rounded. The 

 disc above, near the extremity of the thorax, is furnished with a tuft of fine hairs in the male. 

 Pndcostal nervure short, curved towards the body ; costal nervure extending to about two-thirds 

 of the length of the costa ; snhcosial nervure with its branches arising quite close to the base 

 of the wing, the outer branch extending to the outer angle ; discoidal cell very narrow and 

 open ; median nervure with its branches wide apart. Forelegs of the male very small and 

 brush-like, very woolly ; of the female longer than those of the male, slender, scaly ; 

 tarsus not half the length of the tibia ; articulations indistinct, except when denuded of scales ; 

 obliquely truncate at the tip ; armed with very small spines. Four hindlegs long, strong, 

 scarcely spined beneath ; tibial spurs minute." {West-wood, 1. c. in Gen. D. L.) 



Clerome is a genus of plain-looking Butterflies, the upperside fulvous, marked only 

 in some species with darker or lighter shades of the ground-colour towards the margins, 

 but spotted and sometimes ocellated on the underside, and marked with fuscous lines. About 

 fourteen species are at present known, inhabiting N.-E. India, Burma, the Malay peninsula 

 and islands, and extending to China. 



Eey to thd Indian species of Clerome. 



A. Male and female, upperside fulvous. Underside with three fuscous strigse, and a series of ochreous 

 spots across both wings. 



ff. Male and female alike. Of moderate size funder three inches). 



295. C. ARCEsiLAUS, Sikkim, Sylhet, Burma, Malay Peninsula, Java. 

 b. Male, upperside, forewing uniform fulvous ; female with a discal paler band. Of large size 

 (3*5 inches and above). 



2q6. C. ASSAM a, Assam, Khasi Hills. 

 Except in size there is little difference between the males of the two Indian species, 

 but as that difference is considerable, it will at once be found sufficient to separate them. 

 The females are very distinct. 



295. Clerome arcesilaus, Fabricius. 



Papilto arcesilaus, Fabricius, Mant. Ins., vol. ii, p 28, n. 305 (1787) ; id , Donovan, Ins. India, pi. xxx, 

 fig. 2 (1800) ; Clerotne arcesilaus, Doubleday, Hewitson, Gen. D. L., vol. ii, p. 334, n. i, pi. liv*, fig. 5 (1851), 

 female ; id., Westwood, Trans Ent. Soc. Lond., new series, vol. iv, p. 183 (1856) ; Faunis canetts, Hubner, 

 t^amml E.x. Schmett. (1816-24); Morpho Iconteus, Zinken, Nova Acta Acad. Nat. Cur., vol. xv, p. 170 

 pi. xvi, figs. 14, IS (1831). 



Habitat : Sikkim, Sylhet, Upper Tenasserim, Siam, Malacca, Singapore, Java. 



Expanse : z\ to 275 (Westwood) ; 27 to 2-9 inches. 



Description: "Wings entire. Upperside fuscous-ochraceous, unmarked. Under- 

 side fuscous or brownish-fuscous; both witigs crossed by three obscure strigse (the first 

 sometimes subobsolete), and a series of yellowish dots." 



"The uniform colour of the upperside of both wings, united to the minute and uniform 

 size of the row of pale dots on the underside, will suffice to distinguish this species from 

 C «<w«^.f [from China]. Specimens sent from Malacca by Mr. Wallace (about 2-5 inches in 

 expanse) differ in the richer red-brown colour of the upperside, and in having the outer dark 

 strigK obsolete [on the underside] of the forewing. A specimen from Singapore, in the British 



