404 



Chrysophanus standfussi. (Plate XXX. fig. 



Polyommatus standfussi, Grura-Grsliimailo^ Horae Ross. 1891, p. 450. 



" Supra alis S brunnesceiiti-fuscis, lilacino refulgentibus, albo ciliatis, nervis rubescentibus ; limbo 

 externo, sorie macularum antelimbalium, fere fasciam forinantium, punctis centrali et cellulari 

 auticarum et discocellulari posticarum nigris. 



" AliE 2 difFerunt parte apicali disci aurantiaca. 



" Subtus alis cinereis, disco anticarum $ aurantiaco ; maculis anticarum nigris, posticarum 



fusccscentibus. 

 "Exp. J $ 12-13 millira. [24-26 millim.]. 



" In montibus ad Siniii, in regioue Amdo dicta, detectus." (Gr.-Gr. I. c.) 



Male. Primaries brown tinged with purple ; neuration and discoidal cell fulvous ; the black spot 

 about the centre, and another almost quadrate at the end of the cell; beyond there is a 

 transverse series of black spots placed in pairs ; outer margin broadly black. Secondaries 

 blackish, slightly tinged witli purple in jjlaces towards outer margin ; a black bar closing the 

 cell is followed by an indistinct series of black spots. Under surface cinereous, disc of pri- 

 maries suffused with fulvous brown, spotted as oa upper surface, but with an additional spot 

 towards base of the wing : secondaries with a discal bar preceded by some spots on the basal 

 area and followed by an irregular transverse macular band, all brownish, as also is the in- 

 distinct submarginal band. 



Female. Similar to the male, but the primaries are bright fulvous. 



Chinese specimens of C. (P.) standfussi do not differ from examples of the 

 species kindly sent to me by M. Grum-Grshimailo, except that they are larger, 

 and the spots on under surface of secondaries are less distinct. My native 

 collectors met with this insect in some numbers on the high plateau beyond 

 Ta-chien-lu. 



Genus ILERDA. 



Ilerda, Doubleday, List Lcp. B. M. ii. p. 25 (1817) ; Hcwitson, 111. Diurn. Lp]). p. 5 

 (1805) ; do Niceville, Butt. Ind. iii. p. 322 (1890). 



" Fore winrj : triangular, costa gently curved, male with the apex acute (mucli rounded in /. sena, 

 Kollar), outer margin nearly straight or somewhat convex (much rounded in /. sena), inner 

 margin straight ; in the female the apex is more rounded than in the male, and the outer 

 margin is very convex ; costal uervure terminating about opposite to the apex of the discoidal 

 cell; first sul)costal ncrvule well removed from the costal ncrvuro, originating at about two 

 thirds of the length of the discoidal cell from its base ; second subcostal with its base nearer 

 to that of the upper discoidal than to that of the first subcostal ; third subcostal somewhat 

 long, given off about midway l)etween the apex of the cell and of the winj; ; ui)per discoidal 

 ncrvule originating exactly at the point where the middle discocellular nervule is given off; 

 middle and lower discocellular nervules nearly straight and nearly upright, the lower rather 

 longer than the middle ; second median ncrvule given off a sliort distance before the lower 

 end of tlie coll ; submedian ncrvuro straight. 

 Hind wiiifj : somewhat lengthened, iisually furnisheil wit li a moderate-sized tail at t.lic termi- 

 nation of th.; lirst median nervule ; tin: tail, however, is reduced to a mere tooth in some 



