186 RHOPALOCERA AFRICA AUSTRALIg. 



In such regions these sombre Butterflies, often the only 

 conspicuous forms of insect life, with their slow, uncertain 

 flight, impart quite a character of their own to the arid 

 plain or barren table-land. 



The sixteen species of this Family knovvn to me as natives 

 of South Africa are iiicluded in seven Genera, viz. : Cyllo 

 (1), GnopJiodes (1), Debis (1), Le2^to7ieura (2), Erebia (7), 

 Yphthima (2), Mycalesis (2). Of these the Cyllo and the 

 Gnophodes only are above the middle size, both species 

 attaining an expanse of more than three inches. 



Genus CYLLO. 



Cyllo, Boisd., E. DouU, 

 Satyrus (pars), Gndt. 

 Melanitis, Fab., Horsf. 



Imago. — Head : antennce rather long, slender, with a 

 long, imperceptibly-formed club, but little stouter than rest 

 of organ ; palpi short, deep, scaly, compi'essed, erect. Thoracc 

 pilose, stout for a Satyrian, hairy laterally and posteriorly. 

 Wings broad, more or less arigulated. Fore-wing produced 

 at apex, commonly angulated ac extremity of second discoidal 

 nervule, beneath which there is an excavation on hind-margin, 

 which is moderately dentate ; costa strongly arched ; inner- 

 margin nearly straight. Hind-wing r more or less prominently 

 angulated at extremity of first, and with a smaller projection 

 at end of third, median nervule ; inner-margin widely giooved, 

 all but concealing abdomen. Eegs of moderate length and 

 thickness, not hairy : fore-legs of $ very small. 



Larva. — Elongate, thickened in middle. Head rather 

 large, surmounted by two straight horns. Last segment 

 produced into two long, slightly-divergent horns or spikes. 



Pupa. — Smooth, cylindrical, thickened about middle ; 

 points of head and thorax rather obtuse. 



A single species, the well-known and widely-distributed 

 C. Leda, inhabits South Africa. It has hitherto only been 

 found in Natal, where it does not seem to be common. 



106. Cyllo Leda. 



Papilio Leda, Linn., Syst. Nat., II, p. 773, n. 150. 

 „ „ Dru., Bl. Nat. Hist., I, pi. 15, f. 5, 6. 



„ „ Cram., Pap. Exot., pi. 196, f. C, D ; pi. 



[292, f. A. 

 „ „ Fah., Ent. Syst., Ill, 1, p. 108, n. 333, 



