334 Mr. G. A. K. Marshall on the Genus Byblia. 



Papilio j)olynice, Cramer, Pap. Exot. iv. t. ccclxxv. G and H. (1782). 

 Papilio goetzius, Herbst, Natur. Sclini. ix. t. cclviii. figs. 1 and 2 fnec 



3 and 4] (1798). 

 Papilio iliilmja, Ilerbst, ibid. figs. 5 aud 6 (1798). 

 ByhUa ilithyia, Hiibner, Verz. bek. Schmett. p. 28 (1816). 

 Piblis ilithyia, Godart, Enc. M6tli. ix. p. 327 (1819). 

 Hypanis poly nice, Boisduval, Spec. G6n. i. pi. ix. fig. 6 (1886). 

 Hypanis cora, Feistliauiel, Ann. Soc. Ent. Fr. p. 249 (18/50). 

 Byhlia ilithyia, Moore, Lep. Cej. p. 45, pi. xxiii. fig. 3 (1881). 

 Hypanis simplex, Butler, P. Z.S. p. 146, pi. xxiv. fig. 8 (1883). 

 Byblia ilithyia, de Nic. Butt. Ind. ii. p. 15 (1886). 

 Byhlia simplex, de Nic. ibid. p. 17 (1886). 

 Hypanis ilithyia, Trimen, S. Afr. Butt. i. p. 264 (1887), 



Var. goetzius (Herbst). 



Papilio ilithya, Cram. Pap. Exot. iii. t. ccxiii. A and B, t. ccxiv. C and 



D (1782). 

 Papilio goetzius, Herbst, Natur. Schm. ix. t. cclviii. figs. 3 and 4 [nee 



1 and 2] (1798). 

 Hypanis ilithyia, var. A, Trim, (part.) S. Afr. Butt. i. p. 264 (1887). 



Var. aclieloia (Wallengren). 



Hypanis ilithyia, Doubl. & Hew. Gen. Diurn. Lep. pi. Ixviii. fig. 1 



(1851). 

 Hypanis achelom, Wallgr. K. Sv. Vet.-Akad. Handl., Lep. Rh. Caf. p. 29 



(1857). 

 Hypanis ilithyia, WaUgr. ibid. 



Hypanis cora, var., Butl. P. Z. S. p. 177, pi. xviii. fig. 4 (1881). 

 Hypanis ilithyia, var. vulgaris, Staud. Exot. Schmett. p. 106 (1885). 

 Hijpanis ilithyia, var. A, Trim. S. Afr. Butt. i. p. 264 (1887). 

 Byblia vulgaris, Butl. Ann. & Mag. Nat. Hist. (6) xviii. p. 73 (1896). 



Var. castanea (Butler) *. 



Hypanis castanea, Butl. P. Z. S. p. 759 (1885). 



r* Hypanis anvatara, Lefb. (nee Boisd.) Voy. Abyss., Zool. vi. p. 380 

 (1862). 



1 (a). Byhlia ilithyia-anvatara (Boisduval). 



Hypanis anvatara, Boisd. Faun. Madag. p. 56, pi. vii. fig. 5 (1833). 

 Hypanis ilithyia, var. anvatara, Mab. Grand. Hist. Madag. (1886). 



This variable species has a very extended range, occurring 

 as it does throughout the Ethiopian Kegion and ranging 

 through Arabia into India and Ceylon. Owing to the fact 

 that in different localities it gives rise to several well-marked 

 varieties, and that both the type-form and its varieties exhibit 

 very pronounced seasonal differences, B. ilithyia has been 

 split up into many so-called species. With regard to the 

 seasonal forms of this insect Mr. Butler says (Ann. & Mag. 



* Another variety has been described by Mr. Aurivillius (Ent. Tidsk. 

 XV. p. 279, 1894) under the name of var. Crameri; but I was unable to 

 obtain access to his description during my short stay in England.. 



