HESPERIA. 



579 



Hesperia obertliuri. (Plate XLI. fig. 5, d .) 



Syrichthus oberthiiri, Lcecli, Entomologist, xxiv., Suppl. p. 59 (June 1891). 

 Syrichthus de/avayi, Obertliur, Etud. d'Entom. xv. p. 20 (July ncc June, 1891). 



Closely allied to Ilei^peria rnaculata, Brcm., with which it agrees almost exactly in colour and 

 ornamentation of upper surface, hut the outer macular band is less angulated. The under 

 surface of secondaries is olive-green or grey, with white basal and central bands formed of 

 connected spots, which in the central scries are of various shapes — one of these below costa 

 is bar-shaped ; between the bands the costa is white, with a round spot below of the same 

 colour ; the submargiual line is also white, waved, and interrupted. 



Expanse 33-35 millim. 



" En effet ses caraeteres distinctifs consistent dans I'accentuation des taches blanches en dessus, 

 dans un seul changement, quant a la disposition generale do ces taches qui sent en serie plus 

 droite et moins cchelonnce ; et en dessous dans I'accentuation egalement plus grande de tons 

 les dessins et taches qui sont plus nets, avec des contours tres arretes et comma circonscrit.s 

 par un trait noir;\tre extremement fin. La couleur generale des taches en dessous est 

 grisatre, sans tendance au rougeiitre, comme cela se remarque dans le hieti du Yunnan." 

 {Oheriliilr, I. c.) 



A good series from AYa-ssu-kow, taken at an elevation of 5000 feet in May 

 and June. 



M. Oberthiir considers this to be a local form of *S'. hieti, but both species 

 occur together at ^^'a-ssu-kow. Oherthuri may be distinguished from bieti 

 by its brown rather than black coloration, and by the more complete, curved, 

 and more angulated bands of secondaries ; the under surface also exhibits 

 important differences. 



Hesperia alveus. 



Papilio alveus, Hlibner, Eur. Schmett. i. figs. 4G1-463 (1798-1803). 

 Hesperia alveus, Rambur, Faun. And. pi. viii. fig. Ill (1839). 

 Syrichthus alveus, Lang, Butt. Eur. p. 311, pi. Ixxix. fig. 1 (1884). 



" Expands from 1 to 1-10 in. Brown. Fore wings with a white discal spot and a submargiual 

 row ; there is a small white dot near the centre of the inner margin and the usual tripartite 

 costal spot. Hind wings as in carthami, but even less distinctly marked ; fringes brown and 

 white. Underside : fore wings grey with white spots, as above, but sulTused ; hind margin 

 brownish or greenish. Hind wing white, with central and submargiual greenish bands, 

 irregular in shape ; there is a basal spot of the same colour as the bands." {Lang, I.e.) 



This appears to be a scarce species in China. I received three specimens 

 from How-kow, where they were taken at an elevation of 10,000 feet. 

 M. Grum-Grshimailo sent me a specimen from Koko-noor which agrees 

 exactly with these examples, and I have individuals in my Eiu"opean series 



