458 



Range. Eastern Himalayas at low elevations ; Assam ; Burma ; 

 Tenasserim ; Malay Peninsula ; Sumatra ; Java ; Borneo. 



<S $ . Fore wing : costa very slightly arched, nearly straight ; 

 apex well marked, somewhat acute ; termen convex ; tornus 

 distinct, angular, not rounded ; dorsum slightly convex, about 

 four-fifths the length of costa ; cell not half length of wing ; vein 

 6 at base closely approximate to base of 7, upper discocellular 

 therefore practically absent ; middle discocellular short, about half 

 length of lower, both erect ; lower discocellular attenuated ; veins 

 3 and 4 well separated at base, 5 closer to 6 at base than to 4 ; 8 

 absent ; 9 from apical half of 7 ; 10 from apical half of subcostal ; 

 11 very short, running into and anastomosed 

 with 12 ; 12 terminates on costal margin not 

 opposite to but well beyond upper apex of cell. 

 Hind wing : costa very strongly arched along 

 basal half, thence straight to apex ; termen 

 curved from apex to vein 4, thence obscurely 

 dentate at apex of each vein to tornus ; tornus 

 angulate ; dorsum slightly convex ; cell very 

 1C. ^^^4^ short, not half length of wing, comparatively 

 broad at apical end ; middle discocellular 

 shorter than lower ; vein 1 a terminates mid- 

 Fig. 103. Pm-itia. wa 7 on dorsal margin ; veins 3 and 4 from 

 Venation. lower apex of cell, 7 at base midway between 



base of 8 and 6 ; 8 short, very strongly curved, 

 terminates on the costal margin well before apex of wing ; pre- 

 costal area broad. Antennae slightly longer than half length of 

 wing, gradually incrassate to apex ; club therefore long and very 

 gradual ; palpi porrect, broad anteriorly, clothed with short scales, 

 not fringed with hairs ; third joint short, naked, pointed at apex ; 

 eyes naked ; body comparatively robust ; legs comparatively stout; 

 front tarsi in <3 with the joints not well marked, shortened, 

 the claws minute and very rudimentary ; in $ the front tarsi are 

 similar but the claws are normal and distinct. <5 . Sex-mark an 

 oval patch in the cell of the hind wing on the upperside, of a 

 colour different from the shade of the ground-colour and covered 

 by a tuft of soft hairs. Ordinarily these hairs are pressed down 

 under the fold of the fore wing and point upwards. In the living 

 or freshly killed insect the hairs have a strong but not disagree- 

 able odour and I have noticed that a <3 P. heivilsoni had them 

 erect while flitting round and courting a $ . 



Key to the forms of Poritia. 



dcf. r*9 * 

 A. Underside: markings consist of transverse 



catenulated bands and annular soots. 

 a. Upperside fore wing : cell entirely without 

 or with only in some specimens a minute 

 spot of blue at base. 



