LEPIDOPTFRA. 73 



CALLIMORPHA' THALLO. 



Plate 41. fig. 2. 



Section. Nocturia? 



Family. ARCTiiD/e., Stephens? 



Genus. Callimorpiia? Latreille. Sphinx, Zimtc. 



Ch. Sp. C. alis oblongis integerrimis nigris anticis fasciis duabus, posticis unica flavis ; capite 



rubro. Expans. alar. 2 unc. 

 C. with oblong entire black wings, anterior pair shaded with blue at the base, and 



with two pale yellow fasciae; posterior wings with a pale yellowish space, head 



red. Expanse of the wings 2 inches. 



SvN. Papilio Thallo, Linn. Syst. Nat. 2. 756. Fahr. Ent. Syst. 3. 1. />. 173. 



Sphinx pectinicomis, Linn. Syst. Nat. 2. 807. Fab. Ent. Syst. 3.]. p. 399. Ed- 

 wards Aves, 36. t. 226. 

 Phalsena tiberina, Cramer, t. 32. y. C. D. 

 Sphinx Thallo, Donov. \st edit. 



Donovan entered into a lengthened observation, shewing that Fabricius had given a 

 Papilio Thallo in all his works when no such Papilio was in existence, and that Edwards' 

 fio-ure of the insect in question was derived from a mutilated or mended specimen. The 

 former error is, however, rather to be attributed to Linnaeus, who introduced all the con- 

 fusion by describing Edwards' figure both as a Papilio and Sphinx. 



The figures of Cramer and Edwards do not precisely agree ; in the former, the 

 disk of the posterior wings is yellowish, with a deep border of black : in the other, the 

 yellow occupies only a space near the base, and forms a semi-lunar mark near the ante- 

 rior margin of those wings. Donovan suspected, with Cramer, that they are but the two 

 sexes of one species. Cramer says both his specimens came from China, from whence 

 Donovan's insects were also received. The real affinities of this and some other allied spe- 

 cies are very perplexing, they seem, however, to connect the Zygsenidae with the Arctiidag. 



