168 
LEP1D0PTEBA INPICA. 
Genus ORSOTRICENA. 
Orsotricena , Wallengren, Kongl. Yet. Akad. Fork, xv. p. 79 (1858). Moore, Lep. of Ceylon, i. p. 22 
(1880); Trans. Ent. Soc. Lond. 1880, p. 159. Semper, Reisen Arcliipel. Pliilippen. Lep. p. 44 
(1886). 
Mycalesis ( Orsotricena ), Marshall and de Kiceville, Butt, of India, etc. i. p. Ill (1883). 
Mycalesis {sect, la), Distant, Rliopal. Malayana, p. 49 (1882). 
Imago. —Foreiving comparatively short, exterior margin slightly oblique, the 
apex and posterior angle convex; costal vein only, in both, sexes, swollen at the 
base. Hindwing somewhat arched at the base, anal angle convex; first subcostal 
branch emitted immediately before end of the cell; discocellular long, slightly 
oblique; middle median also emitted before lower end of the cell. Male on the 
upperside of the forewing, with a tuft of fine long hairs, arising from within the base 
of and overlapping or enclosed within a narrow glandular pouch or fold situated above 
the submedian vein ; and on the upperside of the hindwing, with a tuft of delicate 
recumbent hairs situated above and below the base of the median vein. Eyes naked. 
Antennae slender, short, with imperceptibly thickening club. 
Adult Catebpillab. —“ Spindle-shaped, transversely rugose and clothed with 
minute bristles; head with two long setose spines pointed forward, and two caudal 
spines. 55 
Chbysalis.—“ Perpendicularly suspended, slender, and regular, except that the 
head-case is produced into a long beak formed of two thin processes like split-straws.’ 5 
(Davidson and Aitken.) 
Type. —0. Medus. 
ORSOTRICENA MEDUS. 
Wet-Season Bkood (Plate 58, fig. 1, la, b, $ $ ). 
Papilio Medus, Eabricius, Syst. Ent. p. 488 (1775). 
Orsotricena Medus , Moore, Trans. Ent. Soc. Lond. 1880, p. 160. Semper, Reisen Archipel. Pliilippen. 
Lep. p. 44 (1886). 
Mycalesis Medus , Distant, Rliopal. Malayana, p. 49, pi. 4, fig. 8, C (1882). Elwes, Trans. Ent. Soe. 
1888, p. 303. 
Mycalesis ( Orsotricena ) Medus , Marshall and de Niceville, Butt, of India, etc. i. p. Ill (1883). 
Papilio Hesione , Cramer, Pap. Exot. i. pi. 11, fig. C. D. (1775). 
Mycalesis Hesione , Hiibner, Verz. bek. Schmett. p, 55 (1816). Hewitson, Journ. Linn. Soe. Lond. 
Zool. viii. p. 146. Butler, Catal. Satyr. Brit. Mus. p. 138 (1868); id. Catal. Eabrician Lep. 
B. M. p. 34 (1869). 
Orsotricena Hesione , Wallengren, Ivongl. Yet. Akad. Farh. xv. p. 80 (1858). 
Papilio Doris , Cramer, Pap. Exot. iv. pi. 362, fig. C. (1782). 
Papilio Hamilcctr , Herbst, Naturs. Schmett. viii. p. 73, pi. 193, fig. 3 (1796). 
Mycalesis cinereci , Butler, Annals & Mag. Nat. Hist. 1867, p. 401, pi. 8, fig. 9. 
Imago. —Male and female. Upperside uniform dark umber-brown, without 
markings except two slender wavy whitish-cinereous marginal lines and the trans- 
