LIBYTIIEA. 



413 



Hind Wings irregularly and broadly ovate. The costal margin produced in the middle into a considerable-sized 

 lobe. Outer margin strongly scalloped. Anal margin forming only a slight gutter for the reception of the 

 abdomen. Precostal vein short, curved outwards. Costal vein extending to the outer edge of the lobe, of 

 which it follows the outline. Postcostal vein arising just opposite to the precostal, branching at a considerable 

 distance from its base. Upper disco-cellular vein rather short, almost transverse, arising at a distance from the 

 base of the postcostal branch about equal to the space between the base of the postcostal and its branch. Lower 

 disco-cellular slender, but distinct, more oblique than the upper disco-cellular, and slightly curved, closing the 

 discoidal cell * by its union with the third branch of the median vein at a very short distance from its origin ; 

 this third branch considerably curved after its union with the lower disco-cellular vein. 



Fore Legs of the male small and brush-like, densely hairy. The tarsus rather shorter than the tibia, cylindrical, 

 exarticulate, and destitute of ungues. Fore Legs of the female considerably longer than those of the male, but 

 articulated like the four hind feet. The tarsus armed with short spines beneath. The ungues curved, dilated 

 at the base, horny, acute at the tips. Paronychia slender, membranous, bifid, finely setose ; the outer division 

 acute, the inner one shorter and more triangular. Pulvillus broadly transverse, the base narrowed. 



Four Hind Legs moderately elongated, thickly clothed with scales. Femur hairy beneath. Tibia and tarsus 

 armed beneath with short spines. Ungues and their appendages formed exactly as in the fore legs of the 

 female. 

 Abdomen small, slender. 



Caterpillar rather slender, subcylindrical, destitute of spines or points. Tail simple. Body finely 

 pubescent, and very delicately shagreened, with pale longitudinal stripes at the sides, very closely 

 resembling those of the Pierides. 



Chrysalis short, suspended by the tail. Thorax-case rather gibbose in the centre of the back. Head-case 

 not produced into a beak. 



The peculiar structure of tlie fore legs of this genus separates it from all the preceding genera, being imperfect ami brush-like in the 

 males, but articulated and furnislied with claws and their appendages in the females, exactly as in the tarsi of the hind feet. In other 

 respects, if we except the gradually clavated straight antenna; and tlie elongated palpi, we find no cliaracter of importance to remove 

 this genus ft-om the Nymphalidaj or Eurytelida3. The structure of the paronychia, and the arrangement of tlie veins of the wing, offer 

 no distinction ; but the larva is entirely like those of the Pierides, whilst the chrysalis is simply suspended by tlie tail. If, therefore, 

 we regard this last-named character as the primary principle of classification of the Diurnal Lei)idoptera, we have here a genus which 

 belongs to the great group having the chrysalis suspended. Its larva, however, evidently points out an affinity with the Pierides ; whilst 

 the structure of the feet, and the want of ocellated spots on the wings beneath, seem equally to point to the Lycasuida;. In the 

 arrangement of Dr. Boisduval, in which the Lyc»nida3 and Erycinida; are introduced immediately after the Papilionidaj, the Libytliides 

 are placed at the end of the second section " Suspendus," immediately preceding the Hesperides. I cannot but thlnlv this arrangement 

 less natural than that wdiich is adopted in the present work ; Dr. Boisduval having, as it appears to me, placed too great importance on 

 the perfect state of the fore legs in both sexes of the Lycrenida;, and in the females of the Erycinida;, which, in conjunction with the 

 girt chrysalis, has led him to unite them with the Papilionidaj. 



It is interesting to find so remarkable a genus as the present possessing so wide a geographical range. Species from Europe, Asia, 

 and America have been already described, and I am here able to add a new species from Sierra Leone. 



LIBYTHEA. 



1. Lib. MvnRHA. 



Lib. Myrrha Godart, Enc. M. ix. p. 171. n. 4. ; Hiibner, 

 Zutragecxot. Schm. f. 789 — 790. ; G. R. Gray, I,ep. Ins. 

 of Nepaiil, pi. I.; Boisduval, Sp. gen. Lep. i. pi. 10. 

 f. 8. 

 Nepaul, India, Java. B. M. 



Lib. Narina. 



Lib. Narina Godart, Enc. M. ix. p. 171. n. ,5. 

 Java. 



3. Lib. Cabinenta. 



Papilio Carinenta Fahricius, Spec. Ins. ii. p. 104. n. 4.55., 

 Ent. Syst. iii. pt. 1. p. 139- n. 428.; Cramer, Pap. 



pi. 108. f. E. F. ; Fuessly, Arehiv. ii. (. 8. f. A. H. 

 (ed. Gall.) ; Godart, Enc. M. ix. p. 178. n. 3. 

 Surinam. B. M. 



4. Lib. Labb-xca nov. sp.^ 



Lib. Labdaca Westw. MS. ; Doubl. Il'estw. Sj Hewits. Gen. 

 D. L pi. 68. f. 6. 

 Sierra Leone. B. M. 



.5. Lib. Motya. 



Libythea Motya Boisduval !f Leconte, Icon. Lep. ct Chen. 



Amir. Sept. t. 64. 

 Hecacrge Motj'a ? Hiihner, Samml. exot. Schm. Band 

 pi. -. 

 Tniled States. B. M. 



* Boisduval {Sp. gen. Lep. i. p. l67.) inaccurately describes, and H. SchiifFer {Syst. Bearh. pi. .'i. f. 6.) figures, the discoidal cell of tlie bind wings of this 

 genus as open. 



t Lib. alis supra fuscis, anticarum punctis tribus subapicalibus alterisqne quatuor discoidalibus obscurioribus ; posticis macula costali fasciaqne subobsolcta 

 media obscure albis : alis subtus multo pallidioribus ; anticis basi fulvidis apice griseo irroralo ; posticis albido fuscoque marmoratis, fascia abbreviata basali 

 alteraque media pallidioribus: palpis inediocriter elongatis. Expans. alar, antic. 2|V( unc. 



