PLASTINGIINJE. 221 



hinder margiu iu the male, a little shorter than the hinder margin in the female, the 

 wing being narrower apically in the male sex than it is in the female. Hiadwing, vein 

 7 arises well before the upper end of the cell, discocellulars faint, outwardly oblique, 

 vein 5 also faint, vein 3 emitted quite close to lower end of cell, 2 from about one- 

 third before the end ; wing longer in the male than it is in the female, outer margin 

 evenly rounded to the end of vein 2, where it has a slight inward curve. Antennfe 

 long, nearly two-thirds the length of the costa of forewing, club moderate, with 

 a long, pointed, terminal curve ; palpi with the second joint curved upwards, in front 

 of the face, densely clothed, third joint short, blunt, nearly concealed ; hind til)ife 

 fringed and with two pairs of spurs. 



Type, Eudamus calathus, Hewitson. 



LOTONGUS CALATHUS. 



Plate 807, figs. 3, (J , 3a, ? , 3b, ^ , 3c, 9 . 



Eudamus calatlnis, Hewitson, Ann. Mag. Nat. Hist. 1876, p. 353. 



Lutonijus calathus, Distant, Rhop. Malayana, p. 371, pi. 34, fig. 14 (1886). Watson, Proc. Zool. Soc. 



1893, p. 121 ; id. Jouru. Bo. Nat. Hist. Soc. ix. 189.5, p. 435. de Niceville and Martin, Journ. 



As. Soc. Bengal, 1895, p. 541. Elwes and Edwards (part), Trans. Zool. Soc. 1897, p. 231. 



de Niceville, Journ. Bo. Nat. Hist. Soc. xii. 1899, p. 336. Swinhoe (part), Trans. Ent. Soc. 



1908, p. 29. Friihstorfer, Iris, 1911, p. 17. 

 Hesperia trtiviata, Plotz, Stett. ent. Zeit. xlvii. p. 91 (1886), unpublished plate No. 1366. 



Imago. — Male. Upper.side dark olive-brown. Forewing with two conjoined white 

 spots within the cell towards its end, one above the other, two in an inwardly oblique 

 line in the di.sc, both somewhat obliquely elongate, the lower one in the first median 

 intersjDace l)efore its middle, much the larger, the other near the base of the second 

 median interspace, two very minute and icdistinct sub-apical dots. 



Hindwing without markings. Underside slightly paler than the upperside. 

 Forewing with spots similar but larger and more prominent and somewhat ochreous- 

 tinted ; two white opaque streaks in the interuo-mediau interspace, the upper one short 

 and somewhat indistinct. Hind":ing immaculate. Cilia of both wings above and 

 below concolorous with the wings. 



Female. Upperside usually darker than the male. Forewing with the .spots pure 

 white and very large ; a quadrate spot filling up the outer third of the cell, a similar 

 spot immediately below it, and an angular small white spot at the base of the second 

 median interspace, wedged into the junction of the other two ; a small white spot on 

 the middle of the sub-median vein. Cilia brown. Hindwing without spots, the apex 

 white and the entire cilia white. Underside like the upperside, but there is an 

 additional large quadrate white spot connecting the cell spot with the costa, and there 



