|Dark Blue Tiger|
Closely resembles Tirumala limniace, Cramer, but is always sufficiently distinct to be easily recognized, even on the wing. From T. limniace it differs on the upperside in the ground-colour being darker and the semihyaline markings narrower, more distinct, and of a bluer tint, In the fore wing, in interspace 1 the two streaks are narrower, never coalescent, the upper one forming an oval detached spot; the short streaks above vein 5 are outwardly never truncate, always acute. In the hind wing the two streaks if the discoidal cell united at base are wide apart at their apices, the lower one never formed into a hook. On the underside this species is generally darker, the apex of the fore wing and the whole of the ground-colour of the hind wing not being of the conspicuous golden brown that they are in Tirumala limniace.
Expanse: 80–115 mm.
Caterpillar is similar to that of T. limniace (see J. Bomb. N. H. Soc. x, 1896, p. 240). It is said by MacKinnon and de Niceville to feed on Vallaris dichotoma (Jour. Bomb. N. H. Soc. xi, 1807, p. 212). Other species include Cosmostigma racemosa, Heterostemma brownii and Cocculus spp.
- Bingham, C.T. (1905) The Fauna of British India, Including Ceylon and Burma. Butterflies. Vol. 1.
- Kunte, K. 2005. Species composition, sex-ratios and movement patterns in Danaine butterfly migrations in southern India. Journ. Bombay Nat. Hist. Soc. 102(3):280-286
- Nair, P. V. 2005. Cosmostigma racemosa, a new host plant record of the Dark Blue Tiger Butterfly Tirumala septentrionis from Kerala. Journal of the Bombay Natural History Society. 102(3):354
- Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni and Luis M. Hernández HOSTS - A Database of the World's Lepidopteran Hostplants  Accessed October 2006