ANTHERZA.—ARSENURA. 185 
1. Antherza chapata. (Tab. XIX. fig. 1,3.) 
Saturnia chapata, Westwood, P. Z. 8. 1858, p. 162 ($)'; Ann. & Mag. Nat. Hist. 2nd ser. xv. 
p-. 298. 
Attacus (?) chapata, Walk. Cat. v. p. 1202’. 
Hab. Mexico (Coffin'?; Boucard, mus. Oxford), Mexico city (Hége). 
This species varies greatly in colour; as yet it is only known from Mexico. 
ARSENURA. 
Arsenura, Duncan, in Jardine’s Naturalist’s Library, vii. p. 125 (1841) ; ibid. 2nd edit. xxxii. (Ins. 
vii.) p. 125 (1852). 
Rhescyntis, Hiibner, Verz. bek. Schmett. p. 156 (partim) ; Walk. Cat. vi. p. 1321. 
Aricia, Herrich-Schiffer, Samml. aussereur. Schmett. p. 78, t. 51 (nomen przoc.). 
Several species are known of this genus, which is widely distributed over the tropical 
regions of America. The type of Arsenura is A. erythrine. We now record two 
species from our country ; I also place in it, provisionally, a third species (A. championi) ; 
this latter, when more specimens are obtained, will most probably have to be separated. 
1. Arsenura erythrinz. 
Arsenura erythrine, Merian, Ins. Surin. ii. t. 11; Seba, Mus. iv. t. 21. ff. 1, 2, 5, 6. 
Bombyx erythrine, Fabr. Sp. Ins. ii. p. 169; Mant. Ins. ii. p. 108; Ent. Syst. iii. 1, p. 411; Oliv. 
Enc. Méth., Ins. v. p. 27. 
Phalena Attacus erythrine, Gmel. ed. Syst. Nat. i. p. 5. 
Phalena Attacus armida, Cram. Pap. Exot. iii. p. 6, t. 197. f. A (¢)'. 
Phalena Attacus cassandra, Cram. |. c. p. 7, t. 197. f. B (2). 
Arsenura erythrine, Duncan, loc. cit. p. 125. 
Rhescyntis cassandra, Hiibn. Verz. bek. Schmett. p. 156. 
Rhescyntis erythrine, Hiibn. loc. cit. p. 156; Walk. Cat. vi. p. 1824**. 
Hab. Mexico, Cordova (iimeli, Hoge); Costa Rica (Van Patten), Irazu 6000 to 
7000 feet (Rogers); Panama, Volcan de Chiriqui 3000 to 6000 feet (Champion).— 
CoLoMBIA; VENEZUELA ?; Guiana, Surinam !?; Brazin?. 
This species is found over a very wide range of country. It varies very considerably 
in colour; Mexican specimens are mostly smaller and darker than those from Colombia, 
but in other respects they are identical, those from Costa Rica and the State of Panama 
being more like the Brazilian examples before me. 
From Mexico we have received a fine series of specimens, but Mr. Champion only 
met with a single male example on the Volcan de Chiriqui. 
2. Arsenura arcei, sp.n. (Tab. XIX. figg. 2 ¢, 3 2.) 
Male. Primaries reddish-brown, pale along the costal margin to beyond the middle, the pale brown colour 
extending from the base over the disc, with three narrow submarginal waved lines which extend from 
* The synonymy given is mostly taken from Walker’s Catalogue (Joc. cit.). 
BIOL. CENTR.-AMER., Heter., Vol. I., August 1886. 2 aa 
