PENETES. 347 



freckles, the inner half of the fore wings dark brown slightly iiTorated with luteous scales, the pale fascia of the fore wings obsolete 

 towards the costa, the apical portion of the costal margin slightly irrorated with white, and the hind wings marked with three blind 

 ocelli. 



The second species, D. Darius, is very sombre in its colouring, being of a blackish brown, with whitish spots in the fore wings, 

 arranged nearly as in D. Napoleo ; the hind wings in females have several more indistinct spots beyond tlie middle ; the under side is 

 very much freckled, the hinder half of the disc of the fore wings being uniform dark brown, in which the white spots reappear ; there 

 is a small elongate ocellus beyond the middle of the fore wings, and a larger one between the middle and anal angle of the hind wings, 

 with a large elongate-oval fulvous spot near the costa, and another resting on the extremity of the discoidal cell, both with a double 

 row of white scales. 



These insects are natives of South America. 



DYNASTOR. 



1. Dyn. Napoleo. 



Dynastor Napoleon Douhkday, Westw. Sj Hewits. Gen. 



Diurn. Lep. pi. 58. f. 2. 

 Megastes Napoleo Bohduval MS. 

 Brazil. B. M. 



2. DvN. Dabius. 



Papilio Darius Fabricius, Syst. Ent. p. 482., Ent. Syst. 



in. pt. 1. p. .52. n. l6l.; Gcdart, Enc. M. ix. p. 452. 



11. 37. (Morpho Dar.). 

 Papilio Anaxarete Cramer, pi. 95. f. A. B. (male), pi. 374. 



f. A.B. (female) ; Godart, Enc. M. ix. p. 452. n. 35. 

 Potamis superlms Anaxarete Hubner, Samml. exot. Sclim. 



Band i. pi. — . 

 Surinam, Brazil. B. M. 



Genus IX. PENETES Boisduval MS. 



Body elongate, hairy ; fore Avings elongate, very concave, under side not ocellated. 

 Head of moderate size, not tufted in front. 



Eyes large, lateral, naked. 



Antenna as long as the abdomen, or two fifths of the length of the fore wings, gradually thickening from the 

 base ; the joints distinct, and slightly dilated at the tip ; the last twelve joints gradually shortened and thickened, 

 forming a slender elongated club ; under side finely carinated. 



Labial Palpi nearly erect, compressed, very hairy in front, and on the inner surface ; the tip considerably elevated 

 above the level of the top of the eyes, and porrected but slightly in front of the head ; terrahial joint slender, 

 elongate-conic, quite distinct. 

 Thorax robust, hairy. 



Fore Wings considerably elongated. Fore margin arched; apical angle quite rounded off. Apical margin very 

 deeply concave, more than two thirds of tlie length of the costa ; anal angle rounded. Inner margin about as 

 long as the apical, nearly straight. Costal vein extending to two thirds of the length of the fore margin. 

 Postcostal vein with its first and second branches arising near together, at about one third of the length of 

 the wing, before the anterior extremity of the discoidal cell ; third branch arising at about three fourths, and 

 fourth branch arising at about five sixths, of the length of the wing : all the branches free, and extending to 

 the costa, the fourth extending to its extremity. The uj^per disco-cellular vein arises at a little distance 

 beyond the second branch of the postcostal vein, it is rather short and oblique: the middle disco-cellular 

 vein is rather longer, and continued in the same direction : and the outer disco-cellular vein is still ratlicr 

 longer, and slightly less oblique, closing the discoidal cell obliquely at the middle of the wing ; being united to 

 the third branch of the median vein at about the same distance from the base of the hxtter, as exists between 

 the origin of its first and second branches, the point of junction forming an obtuse angle, beyond which the 

 branch follows the slight curve of the adj.ncent branches. 



Iliiid Wings oval. Hinder margin rounded, and but very slightly scallojied. Precostal vein forked ; the anterior 

 branch curved, the tip being turned towards the body. Costal vein with its base forming a prediscoidal cell 

 of moderate size ; the tip extending to the extremity of the costa. Postcostal vein with its branches at a 

 considerable distance apart. The outer disco-cellular vein closing the discoidal cell at a little distance beyond 

 the middle of the wing, in an acute angle with the base of the third branch of the median vein. 



Fore Legs of the male very slender, sliort, and pectoral, hairy, but slightly brush-like. Tibia as long as the 

 femur. Tarsus about three fourths its length, hairy, gradually attenuated to the tip, armed on the upper side 

 with several very slender and short bristles, distinctly three-jointed. The first joint two thirds of the whole 

 length ; the second joint rather longer than wide ; and the third joint acuminated, and as long as the preceding, 

 destitute of terminal ungues. 



Four Hind Legs long, robust, scaly. Tibia rather slender, armed beneath and at tlu; sides with several rows of 



Fehrnnry 1. 1851. 4 Y 



