SYNONYMY OF SOME SPECIES OF INDIAN PIERIN#AE. 517 
T. hecabeoides from Mhow, N.-W. Himalayas, Cachar, Malacca, 
and Australia, and Z. hecabe from Mhow, Campbellpore, Cachar, the 
Andamans, the Nicobars, Formosa, China, Aru, and N.-W. Australia— 
all rather extensive ranges for local races. 
Other forms of Terias, which have been recorded from the Indian 
region, but which were either not represented in the collection at the 
British Museum or about which I neglected to take notes at the 
time, are 7’. rotundularis, Moore, T. contubernalis, Moore, T. ander- 
sonit, Moore, T’. citrina, Moore, T. sodalis, Moore, T. suava, Boisdu- 
val, and 7. esiope, Ménétriés ; all these will almost certainly be found 
to be merely forms of T. heeabe or T. silhetana. 
TERACOLUS. 
This genus may be divided into several well-marked groups or 
sections, which are all more or less affected by seasonal variation, but in 
different ways. 
Section A.—Of moderate size ; upperside salmon-coloured, male with 
_ a glandular patch of scales above submedian vein near base of forewing, 
the inner margin of forewing prominently lobed. 
Of this group there are eight named forms in the British Museum 
collection, which probably represent at most two species ; but how far 
the variation is seasonal and how far geographical I am unable to form 
an opinion without more personal experience of the group, only three 
forms of which I have met with, while the specimens in the British 
Museum are for the most part undated. 
The males of these eight forms may be compared as follows :— 
A. Submarginal fuscous band of forewing not coalescing with 
marginal band towards outer angle. 
a. Upperside, forewing, costa not irrorated with greyish. 
a’. Underside, hindwing, not dusted with brown ; mark- 
ings faint and brownish. 
T. raustus, Olivier. In the B. M. from Hurope, 
Turkey, and Kandahar. 
61, Underside, hindwing, densely irrorated with brown ; 
markings prominent and reddish. 
T. Faustinus, Felder. In the B. M. from 
Campbellpore and Rawal Pindi. 
