1138 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol XXL 



Larvse and pupee altogether normal. Foodplants : Leguminosecs ; nearly- 

 confined to the genus Cassia. 



Genus Colias. 

 Only one species, said to have been obtained at Lucknow. 



Size : 2" to y"-5 fieldii. 



A Himalayan species, visiting the Plains only as a straggler. 



Genus Terias. 



A. Forewing underside : cell unmarked. 



a. Male with secondary sexual characters on both 



wings ; both sexes with dark line on discocellu- 

 lars of underside of forewing. 

 a}. Forewing : apex rounded. Size: 1'''4 to l"-7 . . venata. (PL K., 



fig. 70, 70a, 70b, 

 70c.) 

 b^. Forewing : apex acute. Size l"-4 to l"-9 . . loeta. (PI. K., 



fig. 69, 69a.) 

 Venata has the black margin of forewing reaching tornus, Icsta has it 

 stopping before it. 



b. Male with no secondary sexual characters ; both 



sexes with two dots on discocellulars on under- 

 side of forewing. Size : l"-25 to l"-75 . . . . libythea. 



B. Forewing underside : two marks in basal half of cell. 



Size : l"-60 to 2"-20 hecabe. (PI. K., 



figs. 71,71 a, b, c, 

 all forms.) 



C. Forewing underside : three marks in cell. Size : l"-60 



to 2"' 10.. .. .. .. .. .. .. silhetana. 



Venata is often difficult to distinguish from libytliea as the marks may be 

 obsolete ; at least the females are : for the males can be told at once by 

 presence or absence of sex-marks ; however venata is often powdered with 

 blackish scales on upperside. Lceta is unmistakeable from the shape of the 

 wing and the bar-marking, as also the colour on the underside of hind- 

 wing. 



The larv^ and pupse are normal, i.e., this is known of all except T. Icsta 

 which has never been bred ; and this species is remarkable as being very 

 plentiful in the dry season, nearly completely absent during the monsoon 

 months. Foodplants: Leguminosece ; genus Cassia, &c. 



All the species are some shade of sulphur-yellow with black borders to 

 the wings. 



Genus Colotis. 



• A. Upperside : ground-colour salmon-pink ; female some- 

 times with ground-colour white. 



