246 MESSES. H. J. ELWES AND JAMES EDVAEDS : 



AUGIADES. 

 Augiades, Hiibn. Verz. p. 112 (1816) ; Watson, P. Z. S. 1893, p. 103. Type sylvanus, Esper. 



Closely allied to Erynnis, the points of difference being practically those which 

 separate the Papilio sylvanus of Esper from the Papilio comma of Linnseus. In 

 Augiades siva, Moore, and its immediate allies, hyaline spots are more or less strongly 

 developed in the fore wing. 



Antennae rather more than half as long as costa ; clnb elongate, oval ; apiculus longer 

 than in Erynnis, in most species as long as the greatest width of the club. Third 

 joint of palpi almost concealed, second joint laxly scaled. 



In seven species examined there occurs a marked peculiarity in the male genitalia ; 

 the cedeagus has growing out of its lower side one or two large dissimilar horns, 

 variously shaped and armed, sometimes nearly as large as the organ itself. 



The species in coll. Elwes are distinguished as follows : — 



1 (10) . Hind wing below with the veins concolorous. 



2 (3). Fore wing below with the blackish colour confined to the base and 



dorsum, bounded externally by the sex-mark, and above by 



vein 1 « sylvanus, Esp. 



3 (2). Fore wing below with the dorsal half occupied by a suffused blackish 



patch, which is bounded above by the lower margin of the cell 

 and vein 3. 



4 (7). Hind wing above with pale spots in cells 2-6. 



5 (6). Size larger. Fore wing below with a pale suffused spot near the 



middle of the dorsum. (Edeagus with one horn svhhyalina, Breucu 



6 (5). Size smaller. Fore wing below without a pale spot near the middle 



of the dorsum. (Edeagus with two horns sylvanoides, Leech. 



7 (4). Hind wing above with pale spots in cells 2, 3, and 6. 



8 (9). Sex-mark black. Fore wing below with the basal half of the costal 



region nearly concolorous with the ground-colour of the hind wing. 



Hind wing below with the pale spots silvery white, dark-edged . siva, Moore. 



9 (8). Middle streak of the sex-mark whitish. Fore wing below with the 



basal half of the costal region reddish ochreous. Hind wing 



below with the pale spots neither silvery white nor dark-edged. 

 9a (9b). Expanse 33-35 mm. Lower distal angle of the lower lobe of the 



clasp acute brahma, Moore. 



9b (9a). Expanse 43-47 mm. Lower distal angle of the lower lobe of the 



clasp obtuse crateis, Leecb. 



10 (1). Hind wing below with the veins black. 



11 (12). Size smaller. Fore wing less pointed, its underside with the fringe 



deep yellow, the short scales dark brown for a varying distance 



from the apex. (Edeagus with one horn ochracea, Brem. 



12 (11). Size larger. Fore wing more pointed, its underside with the fringe 



yellowish grey, passing into yellow near the tornus. (Edeagus 



with two horns majuscula, n. sp.- 



