HYPNA. CYMATOGRAMMA. 



315 



Ri7ul Wings subovate. Costal margin arched. Apical margin slightly scalloped ; the third branch of the 

 median vein extending into an elongated and spatulated tail, the space between which and the anal angle is 

 more deeply scalloped ; the first branch of the median vein terminating in a very short obtuse tail, within 

 which is a deep, irregular, oblique emargination, the submedian vein extending to its inner extremity. Disc 

 of the wing marked beneath with numerous silvery patches. Precostal vein short, curved slightly outwards. 

 Postcostal vein branching considerably nearer the base of the wing than the branching of the median vein. 

 Discoidal cell imperfectly closed by a very delicate outer disco-cellular vein, uniting with the median vein 

 exactly at the origin of its third branch. 



Fore Legs nearly alike in size and clothing in both sexes, being ratlier thickly covered with scaly hairs, not 

 forming a dense brush. Fore legs of the male with the tibia nearly equal to the femur in length. Tarsus 

 rather short, slender when denuded of scales, and exarticulate. Tibia in the female two thirds of the leno-th 

 of the femur. Tarsus equal in length to the tibia; basal joint occupying rather more than half the tarsus, 

 unarmed below ; second, third, and fourtli joints short, each armed beneath with several slender spines ; 

 terminal joint minute, unarmed. 



Four Hind Legs short and robust, scaly. Tibia with a scarcely perceptible row of minute spines on each side 

 beneath. Tibial spurs very short. Tarsus with four i-ows of minute spines beneath. Pulvillus very short. 

 Claws very slender. Outer division of the paronychia very similar in appearance to the claws. 

 Abdomen small, ovate-conic. 



Transformations unknown. 



The brilliant silvery spots on the under side of the wings of the only species whicli belongs to the present genus at once distinguish 

 it from all the neighbouring groups, to several of which it is allied in tlie dilated tail of tlie hind wings. From Cymatogramma, to 

 which it is most nearly allied in its general form, it is distinguished by the possession of the four regular branches of the postcostal vein 

 of the fore wings, and the smaller club of the antennaj. 



The only species of the genus is a native of the tropical parts of South America. Donovan and Hiibner have figured a variety 

 Laving the apex of the fore wings produced into an acute hook; and our PI. XLIX. f. 1. represents another variety, distinguished by 

 its small size and the dark red colour with which the inner half of the hind wings is suffused. These varieties, which appear constant, 

 are doubtless to be considered as geographical varieties or subspecies. 



HYPNA. 



HvpNA Clytemnestra. 



Papilio Clytemnestra Fabricius, Ent. Syst. in. pt. 1. p. 123. 

 n. 375. ; Cramer, Pap. t. 137. f. A. H., t. 304. f. A B. ; 

 Godart, Enc. M. ix. p. 363. n. 45. ; Donovan, Nat. 

 Repository, vol. iv. pi. 125.; Hiibner, Samml. exot. 

 Srhm. Band ii. f. — . (Hypna CI.) ; Lucas, Hist. Nut. 

 Lep. exot. pL 6i. f. 1. 

 Brazil, Guiana. B. M. 



Var. Douhl. irestw. Sj Hewits. Gen. Diurn. Lep. pi. 49- 

 f. 1. 

 Colombia. B. M. 



Wax. Hecaleni' Iphigenia Boisd. MS. 

 Cuba. 



Genus LXXX. CYMATOGRAMMA. 



Cymatogramma E. Doubleday MS. 



Body rather small, but robust ; wings large for the size of the body, of similar form in both sexes, thickly irrorated 



beneath with transverse strigffi ; hind wings tailed. 

 Head small, transverse, not tufted in front. 

 Eyes naked, moderately large. 



Labial Palpi elevated considerably above the level of the top of the eyes, nearly erect, thickly clothed with scaly 

 hairs, the front also furnished with .short slender bristles, a conical tuft of bristle-like hairs on the back of the 

 second joint near the tip ; third joint small, obtuse, oval. 

 Antenna; short, not more than two "fifths of the length of the fore wings, slender, nearly straight; terminated by a 

 gradually formed, rather small, but decided club. 

 Thorax elongate-ovate, not densely hairy ; wings large. 



Fore Wings subtrigonate. Fore margin arched. Apical angle obtusely rounded. Apical margin nearly straight, 

 two thirds of the length of the anterior margin, very slightly scalloped. Inner margin nearly straight, about 

 equal in length to the apical margin. Costal vein strong, extending nearly to the tip of the wing. Postcostal 

 vein with the first branch arising before the anterior extremity of the discoidal cell, very short, and uniting 



Der.emher 2. 1 850. 4 



