A KEVISION OF THE OEIBNT/VL HESPEEIIDiE. 163 



! Hesperia antonia. 

 Syrichthus antoniu, Speyer, Stett. ent. Zeit. 1879, p. 342. 

 Eab. Turkestan, Amurland. 



Thanaos. 

 Thanaos, Boisd. Icones, 240 (1832-33) ; Watson, P. Z. S. 1893, p. 69. Type tages, Linn. 



This name is applied generically to certain species more or less resembling the 

 Fajnlio tages of Linnaeus. 



We separate the species in coll. Elwes as follows: — 



Male with a costal fold. 



Hind wing above without yellow spots tages, Linn. 



Hind wing above with yellow spots. 



Expanse about 35 mm. Fore wing below with the first row of pale spots 

 beyond the end of the cell suffused and irregular. Fore wing above 

 with the postmedian band broader, at least as broad as the width of 

 cell 2. Tegumen with two pairs of lateral dorsal lobes, of which the 

 pair nearest the apex are smaller, triangular, and simple, and the 

 pair nearest the base are larger, ear-shaped, and rough with short 



spines montanus, Brem. 



Expanse about 30 mm. Fore \\ing below with the first row of pale 

 spots beyond the end of the cell regular and well-defined. Fore 

 wing above with the postmedian band narrower, in cell 2 about 

 half as broad as the width of that cell. Tegumen wanting the pair 



of ear-shaped spinose lateral dorsal lobes leechii, u. s. 



Male without a costal fold. 



Fore wing above with the pale spots in cells 7 and 8 well marked. Basal 



angle of the lower lobe of left clasp not produced into a horn .... marloyi,Bdv. 

 Fore wing above with the pale spots in cells 7 and 8 obsolete. Basal angle 



of the lower lobe of left clasp produced into a long curved horn . . . pelias. Leech. 



' ! Thanaos tages. 



Tapilio tages, Linnsus, Faun. Suec. p. 286. n. 1082 (1761); id. Syst. Nat. i. 2, p. 795. n. 268 

 (1767) ; Esper, Schmett. i. 1, pi. xxiii. fig. 3 (1777) ; Hiibner, Eur. Schmett. i. figs. 456, 457 

 (1798-1803). 



Thanaos cervantes, Grasl. Ann. Soc. Ent. Fr. 1836, p. 558, pi. 17 b. figs. 1, 2. 



Nisoniades tages, var. sinina, Groum-Grshimailo, Horfe Soc. Ent. Ross. xxv. p, 461 (1891) ; Leech, 

 Butt. China &c. p. 661 (1894). 



? Thanaos popoviana, Nordm. Bull. Mosc. 1851, ii. p. 443, pi. xii. figs. 3, 4. 



Hob. Europe to Amurland. 



Judging from a specimen from Koko-nor, Tibet, ex coU. Eothschild, the variety 

 sinina has the ground-colour paler and greyer than is usual in T. tages proper, the 

 terminal row of spots on both wings are white, the hind wing below has a well-marked 



