CALISTO. 399 



Genus XXVII. CALISTO Hubner. 

 Satyrus p. GodK 



Body small, rather robust, hairy ; wings rather large, dull-coloured ; the anal angle of the hind wings in the typical 



species produced into a large rounded lobe. 

 Head rather small, hairy, not furnished with a frontal tuft. 



Eyes prominent, hairy. 



Labial Palpi slightly porrected, not extending so far in front as the length of the head, and with the tip elevated 

 a little above the level of the top of the eyes. Middle joint long, much curved, rather thickly swollen, and 

 thickly clothed in front with rather short scaly hairs ; middle of the inner edge with an elongated tuft of sliort 

 hairs, set on obliquely ; terminal joint small, very slender, and scarcely hairy. 



Antennai short, not half the length of the fore wings, slender ; terminated by a short, distinct, very compressed, 

 pear-shaped club, concave on the inside. 

 Thorax oval, very hairy, especially behind. 



Fore Wings moderate-sized. Costal margin very much arched ; ajjical angle scarcely rounded. Apical margin 

 almost straight, or but very slightly convex, entire. Inner margin nearly straight, longer than the apical. 

 The disc in the males marked in the middle with a large rounded patch of raised silken scales, occupying 

 almost one third of the disc of the wing. Costal vein strongly dilated at the base. Postcostal vein with all 

 its four branches free ; the first arising at some distance beyond the anterior extremity of the discoidal cell, 

 followed at equal distances apart by the three following bi'anches. Upper disco-cellular vein extremely short : 

 middle disco-cellular long ; the anterior half rather curved, and directed transversely across the wing, suddenly 

 angulated in tlie middle ; the outer half running longitudinally, and forming, as it were, the basal portion of 

 the lower discoidal vein : lower disco-cellular vein short, transverse, closing the discoidal cell transversely 

 rather beyond the middle of the wing ; uniting with the third branch of the median vein at a greater distance 

 from the origin of the latter than exists between the first and second branches of the median vein, which latter 

 is swollen at the base. Submedian vein not dilated. 



Hind Wings large, rounded outwardly, entire. The anal angle produced into a large rounded lobe, the inner 

 margin being considerably emarginate near its extremity ; the lobe marked with a small subocellated spot. 

 Costal vein curved, reaching to about two thirds of the length of the costa. Postcostal vein arising just 

 opposite to the precostal, branching at a short distance from its base. Upper disco-cellular vein long, arising 

 at a short distance beyond the branching of the subcostal vein, very strongly curved from the base to tlie 

 middle of its length, beyond which it is nearly straight, forming, as it were, the base of the discoidal vein : 

 lower disco-cellular vein much shorter, oblique, nearly straight ; closing the discoidal cell in a not very acute 

 point ; uniting with the third branch of the median vein at a shorter distance from its base than exists between 

 the first and second branches. 



Fore Legs of the male very small. Coxa long, thickly hairy. Femur and tibia short, rather thick, of nearly 

 equal length, also thickly hairy. Tarsus longer than the tibia, slender, also thickly clothed on the outside with 

 long hairs, exarticulate, and destitute of claws. 



Four Hind Legs rather sliort and slender. TibioB but very slightly spined beneath ; tibial spurs long. Tarsus 

 armed beneath with longer and more numerous spines ; the terminal joint very short. Ungues strong, 

 irregularly curved, acute at the tip, not bifid. Paronychia very thin, hirsute ; outer lobe slender ; iimer lobe 

 shorter, more triangular. Pulvillus large. 

 Abdomen small. 



The hairy eyes, the dilatation of the base of the costal and median veins of the fore wings, tlic insertion of all the branches of the 

 postcostal vein beyond the extremity of the discoidal vein, the strongly angulated middle disco-cellular vein, and the lobed hind wino-s, 

 at once distinguish this genus, which is very limited in the number of its species, which are apparently confined to Central America and 

 the West Indian Islands. The type is remarkable for having a large iridescent silken ]iatch in tlie middle of the wings of the male ; 

 otlier specimens, however, of larger size, destitute of this patch, appear to offer no ditterence in the structure of the fore legs above 

 described. The typical species, represented in our plate, has the under side brown of varied shades, marked with dark lines running 

 across the wings; the fore ones with a large eye near the tip, and the hind ones with a smaller eye towards the anal angle. Mr. Gosse 

 states that tliis insect is to be met with very commonly in the sombre shade of the woods of Jamaica, where it is very widely dispersed, 

 and occurs throughout the year, its flight being slow and feeble. 



CALISTO. 



1. Cal. Zanois. 



Papilio Zangis Fabricius, Sysl. Ent. p. iSi)., Ent. Syst. 

 in. pt. 1. p. 218. n. 682. ; Herhst, Pap. t. 203. f. .'J, 4. ; 

 Godart, Enc. M. ix. p. 525. ii. I Sy. ; Doiibl. Wi'stw. 

 ^- Hewits. Gen. D. Leji. pi. G6. f. 5. (Calisto Z.) 

 Papilio Agnes Cramer, Piip. pi. 325. f. A. B. 

 Antilles, Jamaica, Carolina. B. M. 



.July 1. 1851. ; 



2. Cal. Herophile. 



Calisto Heropliile lliihiirr, Ziitr. f. 2()<), 270. ; E. Doiihl. 

 List Eep. Jiril. Mils. p. I.^S. 

 Honduras, Cuba. B. M. 



3. Cal. Hysius. 



Satyrus Hysius Gndart, Eur. M. i.v. p. .'>25. n. 131. 

 North America ? 



5 M 



