SYN. Papilio Thetis, _Drury, App. vol._ 2. _Cramer, pl._ 238. _fig._ D. [female]. Hesperia Phædrus, _Fabr. Ent. Syst._ III. 1. _p._ 307. [male]. Hesperia Æsopus, _Fabr. op. cit. p._ 307. [female]. Papilio Cinyra, _Cram. pl._ 238. C. [male]. Polyommatus Phædrus, _Enc. Méth._ ix. _p._ 675. _No._ 181. HABITAT: Bombay (_Drury_). Bengal, Coromandel (_Enc. Méth._). _Upper Side._ Antennæ black. Head, thorax, and abdomen dark brown. Wings russet, or dark hair-coloured, with a white spot in the middle of each, of an oblong shape in the anterior wings, and much smaller and placed transversely in the posterior. Cilia and abdominal groove white. _Under Side._ Palpi, breast, and legs white. Wings on this side fine silvery white, immaculate. Margins of the wings entire. I have reverted to the original name first proposed by Drury. PLATE X. [Illustration] BIBLIS UNDULARIS. Plate X. fig. 1, 2. ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Nymphalidæ, _Sw._ GENUS. BIBLIS, _Fabr. Latr. God._ Papilio (Nymphalis), _Fab. olim._ Papilio (Nymph. Phal.), _Drury_. BIBLIS UNDULARIS. Alis dentatis nigris aut fuscis; anticis suprà fasciâ apicali cyaneâ, posticis externe ferrugineis, omnibus subtus ferrugineo undulatis, punctoque costali posticarum albo. (Expans. Alar. 2 unc. 7 lin.) SYN. Papilio (Nymph. Phal.) Undularis, _Drury, App. vol._ 2. _Cramer, pl._ 256. _fig._ A. B. _Fabr. Ent. Syst._ III. 1. _p._ 127. _No._ 389. _Enc. Méth._ ix. _p._ 326. (Biblis Und.) HABITAT: East Indies (_Drury_). Coromandel, Java (_Enc. Méth._). _Upper Side._ Antennæ brown. Head, thorax, and abdomen brown. Superior wings dark brown, somewhat lighter along the external edges, with an oblong subapical blue streak, beneath which are four oval blue spots placed along the external edges, discernible only when the light falls in a particular direction. Posterior wings reddish clay-coloured, surrounding a dark brown patch placed on the upper part. _Under Side._ Breast, abdomen, and legs brown. Wings dark reddish clay, with short red streaks all over the wings, and a white spot placed at the middle of the anterior edges of the posterior wings. Margins of the wings dentated. {19}NYMPHALIS (LIMENITIS) ARTHEMIS. Plate X. fig. 3, 4. ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Nymphalidæ, _Sw._ GENUS. NYMPHALIS, _Latr._ Papilio (Nymphal. Phal.), _Linn. Drury, &c._ SUBGENUS: Limenitis, _Fabr. Steph._ NYMPHALIS (LIMENITIS) ARTHEMIS. Alis dentatis fuscis; utrinque fasciâ communi albâ strigisque duabus lunularum coerulescentium, subtus rufo-maculatis. (Expans. Alar. 2 unc. 6 lin.--3 unc.) SYN. Papilio (Nymphal. Phal.) Arthemis, _Drury, Append. vol._. 2 _Say. Amer. Entomol._ 2. _pl._ 23. Papilio Lamina, _Fabr. Ent. Syst._ III. 1. _p._ 118. 361. _Enc. Méth._ ix. _p._ 380. (Nymphalis L.) HABITAT: New York.