2SS NYAIPHALID.E. 



Range. Indo-Malayan Region. 



S 2 • Pore wing elongate triangular ; eosta slightly arched ; 

 apex broad, rounded ; termen slightly scalloped ; dorsum short, the 

 tornus forming an obtuse angle ; cell closed, comparatively long, 

 about half length of wing, narrow ; discocellulars oblique, upper 

 minute or wanting, veins 6 and 7 consequently from a point, 

 middle short, slightly concave, lower long, concave ; vein 4 directed 

 upwards and then bent downwards at an obtuse angle ; veins 8 

 and 9 out of 7, almost from a point, 10 and 11 free, 10 touching 

 1 1 but not anastomosing with it. Hind wing subquadrate, costa 

 slightly arched ; termen scalloped, from apex to vein 4 straight 

 posteriorly, from vein 4 to tornus slightly produced ; dorsum 

 angulate in the middle ; cell closed, vein 4 bent strongly upwards ; 

 a narrow transverse prediscoidal eel] present. Antennae long, 

 over half length of fore wing, slender, gradually clavate ; palpi 

 short, pointing forwards, third joint short ; eyes naked. 



The forms in this genus are very closely allied and greatly 

 resemble one another. They have a peculiar flight, soaring on 

 outstretched wings with only an occasional flap, but often turning 

 suddenly with a jerk, so that they are not easy to catch. 



Key to the forms of Parthenos. 



a. Subhyaline white spots forming discal band 



on fore wing continuous, separated only by 

 veins. 

 a . A diffuse bluish patch at posterior ter- 

 mination of discal band on upperside of 



fore wing P. gambrisius, p. 288. 



V . No bluish patch at posterior termination 



of discal band on upperside of fore wing. Race roepstorffi, p. 289. 



b. Subhyaline white spots forming discal band 



on lore wing not continuous, posterior spots 

 widely separated. 

 a'. Upperside ground-colour bright seneous 



green P. virens, p. 289. 



b' . Upperside ground-colour pale greyish 



blue, no trace of green Race cyaneus, p. 290. 



308. Parthenos gambrisius (PI. V, fig. 38), Fabr. (Papilio) Mant. 

 Ins. ii, 1787, p. 12 ; de N. Butt. Ind. ii, 1886, p. 147 ; Moore, Lep. 

 Ind. iii, 1896-99, p. 52, pi. 207, figs. 1, 1 a, <$ $. 

 Parthenos apicalis, Moore, P. Z. S. 1878, p. 829. 



Mace roepstorffi. 



Parthenos roepstorffi, Moore, Lep. Ind. iii, 1896-99, p. 54, pi. 207, 

 fig. 2d- 



<5 $ . Upperside dark olive-green. Pore wing with tAvo broad 

 black streaks from base, the upper along both sides of the median 

 off a slender upward spur inside cell ; a transverse 



