72 



316. Pompelon rotundata. n. sp. 



<y ? Blackish brown with a reddish tinge, shaft of antennas glisten- 

 ing blue. Wings above with no cyaneous reflections except at the 

 apices, these reflections limited to a very narrow space on the fore- 

 wings ; underside, body and wings much as in P. marginata. 



Expanse of wings 2 T ^ inches. 

 a. Java (<J ? types). 



Quite distinct from P. marginata, of a lighter and redder colour, 

 and with absolutely no cyaneous reflections on the costa of fore- 

 wings above ; this wing is also shorter and very much more rounded 

 at apex and outer margin. 



GENUS DIDIWA. Walker: Journ. Linn. Soc., Lond., vi. p. 99 



(1862). 



317. Didina thecloides. 



Didina thecloides. Walker: Journ. Linn. Soc., Lond:, vi. p. 99 (1862). 



- xxxi. 123 (1864). 

 Cydosia uniformis. Butler : P. Z. S., Lond., 1877, p. 169. 



a. Sarawak, Borneo (type) (Wallace). 



318. Didina invaria. 



Didina invaria. Walker: xxxi. 123 (1864). 

 a. Sumatra (type) (Wallace). 



GENUS CHALCOSIA. Htibn.: Verz. Schm., 173 (1816). 



319. Chalcosia thallo. 



Papilio thallo. Linn. : Syst. Nat., ii. 656. 62 (1767). 

 Sphinx thallo. Donovan : Ins, China, pi. 41, f. I (1798). 

 Sphinx pectinicornis. Linn. : Syst. Nat., ii. 807. 44 (1767). 

 Zygana pectinicornis. Fabr. : Syst, Ent., 554. 18 (1775). 



- Sp, Ins., ii. 164. 35 (1781). 



- Mant Ins., ii. 105. 42 (1787). 



- Ent. Syst., iii. i. 399, 44 (1793). 

 Chalcosia pectinicornis. Hiibner : Verz. bek. Schm., 173. 1785 (1816). 



Walker : ii. 420 (1854). 



- vii. 1669 (1856). 

 Gynaiitocera pectinicornis. Guer. : Voy. Deless. Nat. Hist., pi. 24, f. 4 



(1843)- 



Bombyx tiberina. Cramer: Pap. Exot., i. pi. 32, f. C. D (1775). 

 Chalcosia tiberina. Hiibner: Samml. Exot. Schm., ii. i, f. i. 4 (1806-24). 



Walker: ii. 472 (1854). 

 a. China. 



320. Chalcosia albata. 



Chalcosia albata. Moore: P. Z. S., Lond., 1879, p. 390. 



Cotes and Swinh. : Cat, Moths of India, ii. 71. 408 



(1887). 



Type. Dharmsala, in coll. Moore, 

 a. India (2). 



