178 LEPIDOPTERA INDICA, 
Tenasserim” (Butt. Ind. i, 293). Major C. H. E. Adamson (List of Burmese 
Butterflies, p. 10) ‘‘ obtained two males, which flew into his tent about 6 p.m. on 
Christmas Day, 1879, when encamped in evergreen forest near the sources of the 
Thoungyeen River in Upper Tenasserim.”’ We also possess a male from Tavoy. 
Mr. A. R. H. Tucker recently took specimens in Tavoy, in heavy forest, flying both 
at sundown and in the early morning. 
Inpo-MALAYAN ALLIED SPECIES or AMATHUXIDIA.—A. dilucida (Amathusia dilucida, 
Honrath, Berl. Ent. Zeit. 1884, p. 206, pl. 3, fig. 3; pl. 4, fig. 3, b, ¢ (1884). 
Distant, Rhop. Malayana, p. 423, pl. 38, fig. 7, ¢ (1886). Habitat. Malay Penin- - 
sula.—A. insularis (Amathusia insularis, Doherty, Journ. Asiatic Soc. Bengal, 1891, 
p- 25. Habitat. Engano, Nias Islands.—A. Porthaon (Amathusia Porthaon Felder, 
Reise Novara, Lep. iii. p. 779 (1867). Habitat. Java.— A. Ottomana, Butler, 
Entom. Monthly Mag. 1869, p.55. Habitat. Borneo.—A. Pylaon (A. Pylaon, Felder 
Reise Novara, Lep. iii. p. 461. Habitat. Java.— A. Philippina (Amathusia 
Portheus, Semper, Reisen Archipel. Philippen, Lep. p. 71, pl. 13, fig. 7, ¢). Habitat. 
Philippines. 
The following is an allied genus :— 
AmaxipiA, Staudinger, Exot. Schmett. i. p. 188 (1887).—Type. A. Aurelius, 
(Pap. Aurelius, Cramer, Pap. Exot. ii. pl. 168, figs. A, B (1779). Hewitson, Exot. 
Butt. Zeua, pl. figs. 1, 2 (1868). Distant, Rhop. Malayana, p. 425, pl. 37, fig. 1, 3 
(1886). Habitat. Sumatra; Malay Peninsula.—4A. aureliana (A. Aureliana, Honrath, 
Berl. Ent. Zeit. 1889, p. 162). Habitat. Borneo. 

Genus AMATHUSIA. 
Amathusia, Fabricius, Syst. Gloss. (Illiger’s Mag. vi. p. 279 (1807). Westwood, Gen. D. Lep. 
p- 326 (1851). Distant, Rhop. Malayana, p. 70 (1882). Marshall and de Nicéville, Butt. of 
India, ete. i. p. 288 (1883). Staudinger and Schatz, Exot. Schmett. il. p. 185 (1889). 
Mera (part), Hibner, Verz. bek. Schmett. p. 51 (1816). 
Mitocerus, Billberg, Enum. Ins. p. 79 (1820). 
Iwaco.—Male. Wings large, very broad. forewing short, subtriangular ; 
costa much arched, apex obtusely rounded, exterior margin almust even, slightly 
oblique, posterior angle round ; posterior margin nearly straight ; cell broad ; first sub- 
costal branch emitted at about one-fifth before end of the cell and free from the costal 
vein, second with the branches emitted cluse together near the apex ; discocellulars 
erect from the middle, outwardly-oblique below the middle ; upper radial from slight 
angle close to the subcostal, lower radial from above the middle of discocellulars ; 
median veinlets wide apart, upper median slightly bent at one-third beyond end of 
the cell, but not spurred; submedian vein slightly recurved. Hindwing subtri- 
angular, short, and very broad, produced posteriorly into a broad spatulate tail at 
