34 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



IMBRASIA EPIMETHEA (Drury). 



Plate XLII, fig. 5; CIX, fig. e-g. 



Atlacus epimethea Drury, Illust. Exot. Ent., II, Tab. 13, figs. 1, 1773. 

 Phalaena-Attacus epimethea Cramer, Papillons Exotiques, II, Taf. 176, A, 1777. 

 Imbrasia dorcas Hubner, Verzeichniss bek. SeLvmett., p. 154. 

 Bunaea mopsa Walker, Cat. Lep. Het. Brit. Mus., p. 1233, No. 11, 1855. 

 Bunaea dorcas Walker, Cat. Lep. Het. Brit. Mus., p. 1233, No. 12, 1855. 

 Bunaea epimethea Walker, Cat. Lep. Het. Brit. Mus., p. 1234, No. 13, 1855. 

 Gonimbrasia obscura Butler, Annals and Mag. Nat. Hist., (5) II, p. 4G2, 1878. 

 Gonimbrasia hebe Maassen and Wetmee, Beitrage, V, figs. 84, 85, 1886. 

 Imbrasia dorcas Maassen and Weymer, Beitrage, V, fig. 112, 1886. 

 Imbrasia crameri Kirby, Syn. Cat. Lep. Het., I, p. 754, 1892. 

 Imbrasia dorcas Kirby Syn. Cat. Lep. Het., I, p. 753, 1892. 

 Imbrasia epimethea Rothschild, Nov. Zool., II, p. 39, 1895. 



Imago. — One 6" , one 9 . Body and wings uniformly reddish brown (mink color). An- 

 tennae and legs dark brown, wings of both pair pinkish at base, as is the abdomen. Fore wings 

 with a faint diffuse hoary pink basal line, more distinct in 9 , situated nearer the discal spot 

 than to the base of the wing, interrupted in the middle of the wing, and widening into a large 

 hoary pink spot opposite the discal spot and extendeng to and upon the costa. Extradiscal 

 line oblique, slightly curved, ending on the costa on the outer sixth of its length; hoary pink, 

 lined externally with brown, and in the costa extending inward along the costal edge. Discal 

 spot a single subtriangular clear spot, with rounded angles, larger in S than 9 , where it is very 

 small. Extradiscal Line a little curved outside of the ocellus ; in s lined externally with dark 

 brown. Ocellus large, oval cylindrical, a large deep yellow-ocher center, circled with black, 

 pink red and externally with pinkish ocher white ; in 9 a slight clear center. 



Under side of the wings with no discal spot on the hinder pair, and in the fore wings only 

 a minute clear suboval spot in 9 ; the spot is as large as on the upper side; the 9 wings of both 

 pairs are more hoary than in the S . 



Expanse of fore wings, 3 102 mm.; 9 128 mm. 

 Length of fore wing, 6" 58 mm.; 9 63 mm. 

 Breadth of fore wing, <? 32 mm.; 9 33 mm. 

 Length of hind wing, <? 50 mm. ; tail, 5 mm. ; 9 43 mm. 

 Breadth of hind wing, 3 31 mm.; 9 33 mm. 

 Ocellus in hind wings, <? 10 by 1\ mm. 

 Ocellus in hind wings, 9 11 by 8£ mm. 

 Geographical distribution. — Cameroons, Africa (Staudinger and Bang-Haas) . 

 Rothscluld has determined that /. obscura, hebe, dorcas, crameri and mopsa are all synonyms * 

 of I. epimethea. It is evident that 0. obscura Butler presents no differences from the epi- 

 methea of Drury. Rothschild states that he has 18 specimens of I. epimethea, and "they show 

 every gradation between the five named aberrations." 



[I. deyrollei (Thorns.) is however considered a distinct species. Other species and sub- 

 species have been described as anthina Karsch (1893), cleoris Jordan (1910), nyassana Roth- 

 schild (1907), and lucida Rothschild (1907). C. Oberthiir (Etud. Lep. Comp., 1910) gives a 

 good figure of I. erili Rebel, remarking that the larva is very different from that of Nudaurelia 

 (i.e., Acanthocampa) belina. In the same work he figures and fully discusses deyrollii Thomson 

 (this is the original spelling), which he refers to Bunaea.] 



GONIMBRASIA Butler. 



Saturnia Westwood, Proe. Zool. Soc. London, 1849, p. 55; 1881, p. 143. 

 Antheraea Walker, Proc. Nat. Hist. Soc. Glasgow, I, p. 343, 344, 1869. 

 Gonimbrasia Butler, Ann. and Mag. Nat. Hist., (5) II, p. 462, 1878. 

 Bunaea Druce, Proc. Zool. Soc. London, 1886, p. 409. 

 Bunaea Maassen and Weymer, Beitrage z. Schmett., 1886. 



!• [Rothschild considered obscura the normal female of epimethea, and listed the other four names as aberrations.] 



