578 



HESPERIID.^:. 



the Corea. It also occurs in Central China at Chang-yang and Kiukiang, 

 and in Western China at Chia-ting-fu. 



I have beautifully executed drawings of the types of zona and albistn'f/a, 

 Mabille, and consider that both, together with sinicus^ Butler, are referable 

 to one species. Zona=simcus is the usual form met with, and has the dark 

 submarginal band on under surface of secondaries well developed ; var. albi- 

 atriga is a slightly smaller form, in which the ground-colour of under surface 

 is more uniform in tint and the black submarginal band does not extend far 

 beyond the anal angle. In some specimens the dark central band on under 

 surface of secondaries is entirely obliterated as in fig. 3. 



Hesperia tliibetana. 



Syrichthus maculatus, var. thibetanus, Oberthiirj Etud. d'Entom. xv. p. 20, pi. iii. fig. 27 

 (1891). 



Very similar to H. mneulata on the upper surface, bnt the white spots are generally rather 

 smaller and the outer band of spots on secondaries is not elbowed. Ou the under surface the 

 apex of primaries is white enclosing a dash of olivaceous brown, instead of being entirely 

 brown ; the pattern on secondaries is similar to that of macalata, but the colour of ground 

 and markings is the same as in 11. bieti. 



Expanse 32-36 millim. 



Of this species, which M. Oberthiir has considered to be a form of 

 II. maculata, I have examples from Ta-chien-lu and W a-ssu-kow in Western 

 China, where they were taken in May and June. 



Hesperia bieti. 



Syrichthus bieti, Oberthiir, Etud. d'J'^iitom. xi. p. 20, pi. vi. fig. 50 (188()). 



" Voisin de macnlatH.s dont il difrcre peu en dessus, mais tres distinct eu dessous par Ics dossins 



gris jaunati'e de ses ailcs iiifericures. 

 " Lc dessous de I'abdomen est bldiichiitro." (Oherihiir, I. c.) 



This species is fairly plentiful at Ta-cliicn-lu and Wa-ssu-kow, Western 

 China, in May and June. 



Alph(!;raky * records /S'. from Tangout, plateau of Amdo. M. (iruiii- 

 Grshimailo sent uk; a specimen ;is tliis s])ecicsfrora the Nian-slian mountains, 

 'I'hibct ; l)ut it is quite different to any Hesperia with which 1 am acquainted, 

 and will probably prove to be new. 



* Horn, sur Lep. v. p. 122. 



