MYCALESIS. 



393 



front rather farther than the length of the head, very slender; the first and middle joints sparingly clothed 

 beneath with long porrect delicate bristles ; the middle of the second joint also clothed on the back with a tuft 

 of short hairs ; terminal joint very slender, acute at the tip, short, and scarcely setose. 

 Thorax rather small, rather compressed, and very convex. 



Fore Whigs with the costal margin strongly arched. Apex rounded. Apical margin varying from slightly 

 convex to slightly concave, entire, about three fifths of the length of the costal. Inner margin about one 

 fourth longer than the apical, rather dilated in the males. Costal vein strongly swollen at the base. Postcostal 

 vein with the first and second branches arising before the anterior extremity of the discoidal cell, which extends 

 to the middle of the wing. Upper disco-cellular vein very minute ; middle one longer, curved, rather obliquely 

 directed towards the base of the wing; outer disco-cellular much longer, strongly arched, united with the third 

 branch of the median vein at a short distance from its origin. In the species in which the base of the median 

 vein is not swollen, the space between its first and second branches is much longer than usual, the space 

 between the base of the wing and tlie first branch being proportionately shortened ; in others the base of this 

 vein is swollen, and the space between the first and second branches as short as usual. Submedian vein 

 simple, and curved at the base in some species, which have a slit enclosing a tuft of hairs opposite the origin of 

 the first branch of the median vein ; but greatly swollen at the base in other species, which have not this slit, 

 the tuft of hairs being placed in these on the upper surface of the hind wings. 



Hind Wings with the costal vein extending about two thirds of the length of the costa. Postcostal vein arising 

 opposite the origin of the precostal ; its branch arising at a considerable distance from its base. The 

 disco-cellular veins forming a nearly continuous rather obliquely transverse termination to the discoidal cell ; 

 uniting with the median vein exactly at, or a little beyond, the origin of its third branch. The discoidal cell 

 in some species bears along its outer edge a tuft of long pale hairs ; whilst in others it is more generally clothed 

 with numerous shorter hairs. Outer margin slightly scalloped. 



Fore Legs of the male small. Femur clothed with scaly hairs, slender, as long as the tibia and tarsus, which are 

 thickly clothed with short hairs. Fore Legs of the female much longer, slender. Tibia rather shorter than 

 the femur or tarsus, which latter is articulated ; the articulations armed with short spines beneath ; tlie tips 

 destitute of ungues. 



Four Hind Legs rather long and slender, scaly, destitute of hairs, and with only a few very small spines on the 

 sides of the tibia3 beneath. The tarsi also almost destitute of spines, and thickly squamose ; the scales hiding 

 the terminal ungues. 

 Abdomen slender. 



This is a genus of moderate-sized butterflies, for the most part natives of Africa and the East, distinguished by their uniform dull colours, 

 being generally either black or brown, occasionally varied by a single large eye-like spot on the upper side of the fore wings, and with a 

 few ocelli near the outer margin of the hind wings. On the under side they are often marked with a pale slender obhque bar, riuining 

 across all tlie wings, witli the ocelli larger, and often elegantly tinged witli silver. The most important character which I have observed 

 consists in the existence of a tuft of elongated hairs, either on the upper surface of the fore wings near the hinder margin, where there is 

 a long slender slit, or rather pocket, for its reception, or on the disc of the hind wings, where it is covered by the inner margin 

 of the fore ones. This tuft of hairs occurs as usual only in the males, and its situation serves to divide the genus into two groups, 

 the former having M. Hesione as its type, and the latter JNI. Polydecta. I have considered this character, together with the uniform 

 position of the branches of the postcostal vein of the fore wings, and the broad nearly transverse termination of the discoidal cell of the 

 hind wings, as of greater importance than tlie variations in the swollen condition of the base of the principal veins of the fore wings, 

 which, as above described, differ materially in the two groups. 



MYCALESIS. 



1. Mvc. P<II.VDECTA. 



Papilio Polydecta Fahricins, Spec. Ins. ii. p. 85. n. 37.S., 



Eiit. Sy.ft. HI. pt. 1. p. 107. n. 329. ; Cramer, Pap. 



pi. 144.. f. E. F. ; Godart, Enc. M. ix. p. 511. n. 101. 

 Papilio Perseus Fubr. Syst. Ent. p. 488. n. 199., Eiit. 



Syst. III. pt. 1. p. 219. n. 685.; Jones, Icones, vi. t. 



49. ; Donovan, Ins. N. Ho!/, pi. 26. f. 3. 

 Var. ? Papilio Otrea Cramer, Pup. pi. 314. f. A. B. 

 Var. .'' Papilio JVIamerta Cramer, Pap. pi. 326. f. P. 

 Papilio Francisca Cramer, Pap. pi. 326. f. E. F. 

 China, Bengal, New Holland. 



9. Mvc Martius. 



Papilio Martius Fabricius, Ent. Syst. in. pt. 1. p. 219. 

 n. 686.; Jones, Icones, vi. t. 49- f. !•; Donoi'an's 

 Drawings in Bibl. Hope, Oxford; Godart, Enc. M. ix. 

 p 512. n. 102. 

 Satyrus Bacchus lioisduval MS. 

 Guinea. B. M. 



3. Mvc. Mineus. 



Pajiilio Mineus Linnaits, Syst. Nat. 11. p. 768. n. 126. ; 



Fabricius, Syst. Ent. p. 488., Ent, Syst. in. pt. 1. 



p. 158. n. 488.; Godart, Enc. Meth. ix. p. 510. n. 97. ; 



Boisduval, Voy. de t Astrolalje , Ent. pt. 1. p. 154. 

 Papilio Blasius Fabricius, Ent. Syst. Suppl. v. p. 426. 



n. 488—189. 

 Var. ? Papilio Justina Cramer, Pap. pi. 326. f. C. 

 \^ar. ? Papilio Drusia Cramer, Pap. pi. 84. f. C. D. var. ? 

 China. Bengal, Java, Aniboyna, Timor. B. M. 



Mvc. Hesione. 



Papilio Hesione Fabricius, Ent. Syst. iii. pt. 1. p. 100. 

 n. 308. ; Cramer. Pap. pi. 11. C. D. ; Godart, Enc. M. 

 IX. p. 510. n. QS. ; Boisduval, Voy. de I' Astrolabe, Ent. 

 pt. 1. p. 153. 

 Var. Papilio Medus Fabricius, Syst. Ent. p. 488. n. 198. 

 Papilio Doris Cramer, Pap. pi. 362. f. C. 

 Java, Amboyna, King's Island (Surinam and Cape of Good 

 Hope, Fabricius). B. ,M. 



