42 



white. On the underside the ground colour is light grey, fairly pure, the 

 markings fine greyish white. On the primaries the traces of a light-rimmed 

 patch may be still seen, in the middle cell before the marking on the cross 

 vein, which really consists of two somewhat waved greyish white lines, between 

 which the ground is slightly darker, with another greyish white middle line. 

 Here upon follow two waved lines with a paler one between them, the first of 

 which is continued to vein i, the second only to vein 3, and outwards does not 

 protrude much in the cells 3 — 5, as in Ardates. On the secondaries the 

 marking is of the same kind, but more elaborate, and along the outer margin 

 runs a line slightly pointedly waved and on the secondaries faintly double, which 

 has a somewhat darker border. The small black spot in cell 2 of the secon- 

 daries is towards the base distinctly pointed in the middle, without any yellow- 

 red or silver, and in cell if another black point may be seen with a few 

 blue-silver scales. Fringe line dark grey, towards the base bordered by greyish 

 white. Fringe greyish white, darkly divided. 



27. Datarica Sn. (PI. XXr, 57a, b). 

 Snellen, Tijdschr. v. Eut., XXV, />. 160 (1892) . . . Lycaena Datarica. 



W. J. Megamendoung and Frayangan mts. (i 1600). 



C. J.? 



E. J.? 



This species is minutely described by Snellen in the above mentioned 

 article, from 1 1 6 and i 9 which I caught. 



Snellen describes it thus. In the 6 of this species the upperside is of 

 a more vivid and darker blue than in Glauca, with no further markings, towards 

 the outer margin somewhat darker and duller without black spots at the inner 

 angle of the secondaries, the outer margin of which shows a trace of a tail 

 there at the end of vein 2. The 9— only one specimen of which is known — 

 is pale purple-blue on the upperwings, with a broad dull black outer margin 

 on the primaries, and a dark grey costal margin on the secondaries, dark 

 veining and a grey- brown curved row of lunules of the same colour behind it 

 in the cells ; the spot in eel 2 is rusty black, on the underside the ground colour 

 is a clear grey, in the 9 even whitish, which is somewhat darker towards the 

 bases of the wings, where it is slightly powdered with a faint grey-green ; the 

 markings consist of spots somewhat darker than the ground, and more clearly 

 marked than in Glauca, with a greyisch white border; the curved row of 

 lunules behind the spot on the cross vein is continued to vein i on the primaries, 

 though not very distinctly; the spots in cells \a and 2 are almost straight under 



