NYMPHALIDvE. SATYRIN^.. MYCALESIS. in 



Fourth C;-^?/^/.— OrsoTRI^NA, Wallengren, Kongl. Vet.-Akad. Forh., vol. xv, p. 79 

 (1858); Moore, Trans. Ent. Soc. Lond., 1S80, p. 159. " Forezoing comparatively shorter, 

 exterior margin less oblique, apex and posterior angle convex ; costal nervure only, in both 

 sexes, swollen at the base. Male with a tuft of fine hairs covering a glandular patch above the 

 base of submedian nervure. Hiiuhoing less arched at the base, anal angle convex ; first sub- 

 costal branch emitted immediately before end of the cell, middle median also emitted before 

 lower end of the cell. Male with no erectile tuft at the base of subcostal, being replaced 

 by a slight tuft of more delicate and recumbent hairs above and below the median nervure. 

 .^jifj naked. " {Moore, 1. c.) 



The species of this group may be easily identified by several features, in them alone of 

 all the species of Mycalesis, the costal nervure only of the forewing is swollen at the base, 

 the median and submedian nervures being simple ; in the males the tufts of hair on the 

 hind wing are placed by the median nervure instead of by the subcostal, and in both sexes the 

 white band of the underside is on an uniform ground, while in most of the other species the 

 ground-colour is darkest along the inner edge of the line. In this group alone of all the Indian 

 Mycaksis the eyes are naked, and the tuft of hairs on the hindwing of the males overlapped by 

 the inner margin of the forewing is absent. It is apparently well worthy of generic separation. 

 Six species are known, and the group extends through the Malay Archipelago to the New 

 Hebrides, New Ireland, and also to Hainan. 



Key to tlie Indian species of Orsotrissna. 



A. Males, with a glandular pouch and tuft on both wings. 



b, a^ With the white band of the underside narrow and nearly uniform in width throughout. 

 a- With the ocelli very large, prominent. 



92. M. (Orsotriana) medus, North-India, Burma, Orissa, Nicobars. 

 J2 With the ocelli small, obsolescent. 



93. M. (Orsotricena) runbka, North-India, Burma. 

 b^ With the white band very wide, widest at the middle. 



a^ With all the ocelli large, prominent. 



94. M. (Orsotricena) mandata, South-India, Ceylon. 

 b^ With the ocelli smaller, those of the forewing obsolescent. 



95. M. {OrsotriiPtia) mandosa, South-India. 



92. Mycalesis modus, Fabricius. 



Papilio medus, Fabricius, Syst. Ent., p. 488, n. 198 (1775) ; P. hesione, Cramer, Pap. Ex., vol. i, pi. xi, figs. 

 C, D (1775) ; id., Herbst, Pap., pi. cxciii, figs 4, 5 (1796} ; Mycalesis hesione, Hiibner, Verz. bek. Schmett., 

 P 55. n. 525 (1816) ; id., Butler, Cat. Fab. Lep. B. M , p. 34, n. 11 (1868) ; Orsotriiena hesione, Wallengren, Kongl. 

 Vet.-Akad. Forh., vol. .xv, p. 80 {1858) ; Papitio doris, Cramer, Pap. Ex., vol. iv, pi. ccclxii, fig. C (1781) ; 

 Z*. /iaOTzVt-a;'; Herbst, Pap , pi. cxciii, fig. 3 (1796) ; 6'r.y()/r/(S«a w^r/z^j-, Moore, Trans. Ent. Soc. Lond., 1880, 

 p. 160 ; Mycalesis medus. Distant, Rhop. Malay., p. 49, pi. iv, fig. 8 (1882), male. 



Habitat : Plains of North-India, Sikkim, Assam, Cachar, Sylhet, Burma, Upper 

 Tenasserim, Orissa, Nicobars, Malayana. 



Expanse : I'S to 2"3 inches. 



Description : "Upperside, both wings fuscous, unmarked. Underside fuscous, with a 

 common white streak which reaches neither to the costa of the forewing nor to the inner 

 margin of the hindwing. Foreioing with two black ocelli, with yellow iris and white pupil. 

 Hindiuing with three ; the third smaller." {Fabricius, 1. c.) 



The above is translated from the original description of AT. mi-diis. The following is 

 Godart's description of il/. hesione, Cramer: " Upperside obscure brovui without markings. 

 Underside with a common white streak and some ocelli, each surrounded with a plumbeous 

 circle, two on the /»/-^«/«?, and three on the hindioing, of which one is small." {Godart^ 

 Enc. Meth., vol. ix, pp. 468 and 510 (1819). 



The Indian specimens correspond best with M. hesione, as in all the species of this 

 group in India there are indications more or less prominent of a plumbeous band round each 



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