CYSTINEURA. OLINA. 407 



convex, about two tliirds of the length of the costal, very slightly scalloped. Hind margin equal in length to 

 the apical. Costal vein dilated at the base. Postcostal branching as in the two preceding genera. Upper 

 disco-cellular nearly obsolete : middle disco-cellular short, transverse, arched : lower disco-cellular much 

 longer, transverse, but slightly curved ; closing the discoidal cell considerably before the middle of the wing, 

 by its junction with the median vein exactly at the origin of its third branch. 



Hind Wings broadly triangular-ovate, short, regularly scalloped along the outer margin ; the anal margin 

 scarcely forming a gutter. Precostal vein erect, forked at the tip. Costal vein extending to the outer angle 

 of the wing. Postcostal vein arising considerably nearer the base of the wing than the precostal vein ; 

 branching at a moderate distance from its base. The upper disco-cellular vein forming the almost straio-ht base 

 of the discoidal vein, and arising exactly at the base of the branch ; the lower disco-cellular vein being obsolete, 

 and the discoidal cell open. 



Fore Legs of the male very minute, scaly. The femur elongated, cylindrical. Tibia and tarsus together forming 

 a spindle-shaped mass, not more than half the length of the femur ; the tarsus being about half the lenTth of 

 the tibia, pointed, and destitute of claws. Fore Legs of the female nearly three times the length of those of the 

 male, slender, scaly. Tibia and tarsus of equal length, the latter rather dilated near the tip ; the joints spined 

 beneath. Claws wanting. 



Four Llind Legs very slender, rather long, scaly. Tibia and tarsus of nearly ec_[ual length, armed beneath with 

 a few sharp spines. Claws curved, acute, simple. 

 Abdomen long and slender. 



'O 



This genus consists of a few delictitcly formed butterflies, natives of the hottest parts of America, not remarkable for tlieir 

 brilliancy of colours, but presenting several structural peculiarities of considerable interest ; especially the jilace of insertion of the 

 disco-cellular vein of the hind wings at the base of the branch of the postcostal vein, the curious form of the fore legs of the male, 

 and the slender body. The characters of the genus arc drawn from the species figured, which was found by Mr. Gosse very abimdantly 

 in Jamaica, especially in places of low or but moderate elevation, where it is numerous at all seasons. It flies low, aligliting but little, 

 proceeding with a dancing or jerking motion over the herbage with no great rapidity. 



CYSTINEURA. 



1. Cyst. Mardania. 



Papilio Mardania Cramer, Pap. pi. 213. f. F. G. ; E. 



Doubl. List Lep. B. M. p. 1 44. ; DouU. U'estw. Sf 



Hfwits. Gen. D. Lep. pi. ."Jl. f. 1. 

 Pantoporia Mardania Hiihner, Vers. Iiek Schm. n. 388. 

 Papilio Hersilia Fabricms, Ent. Syst. iii. pt. 1. p. 247. 



n. 770. ; Godart, Enc. M. ix. p. 434. 

 Guiana, Jamaica. B. M. 



2. CVBT. HVPF.RMNESTRA. 



Mnestra Hypermnestra Hiihner, Samml. exot. Srhm. Rand 

 ii. pi. — . ; E. Dovb/. Lint Lep. Brit. Mux. p. 1 44. 

 (Cystineura H.) 



Nyniphalis Hersilia Godart, Enc. M. ix. p. 4.')4. n. 267- 

 Cystineura Hersilia Boisduvul, Spec. yen. Lep. i. t. f). 

 f. 1. 

 Brazil and Northern parts of South America. B. M. 



3. Cyst. Teleboas. 



Argynnis Teleboas Menetries in Notiv, Mem. Soc. Nat. 

 Moscou, torn. iii. n. 28. t. 10. f. ,5. 

 Antilles. B. M. 



4, C'vsT. Teleti^sa. 



Argynnis Teletusa Gndnrt, Enc. M. ix. p. 817. 

 Brazil. 



Genus IV. OLINA. 



Olina E. Dovbleday. 

 Nymphalis p. God'. 



Body rather long and slender ; ^vings elongate, black, with large white spots beneath, varied witli fulvous stn'o-aa 



ibrining large oval or circular marks on the hind wings. 

 Head small, finely hairy, not tufted. 

 Eyes moderate-sized, naked. 



Labial Palpi moderately elongate, not elevated to the level of the top of the eyes, finely hairy. 

 Antenna; shorter than half the length of the wings, terminated by an elongated very slender club. 

 TaOEAX oval, banded with white scales. 



Fore Wings large, elongate-triangular. Costal margin slightly curved, nearly straight in the middle ; apical 

 angle rounded. Apical margin entire, very convex, about two thirds of the length of the costa. Inner raaro-in 

 nearly straight, about as long as the apical. Costal vein much swollen at the base ; branches of the postcostal 

 as in the preceding genera. Upper disco-cellular very minute, oblique : middle disco-cellular short, very much 

 arched: lower disco-cellular either entirely obsolete (0. Azeca), or very slender, transverse, slightly curved, 

 and directed towards the base of the wing, uniting with the median vein about half way between the first and 



July 1. 1851. 5 O 



