|Dark blue tiger|
both T. s. dravidarum
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 forewing, 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 hindwing 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 forewing and the whole of the ground colour of the hindwing not being of the conspicuous golden brown that they are in T. limniace.
Wingspan 80–115 mm.
This species is one of the predominant species (78%) during the migratory season in southern India during which many species migrate. Both males and females appear to migrate in equal numbers.
Caterpillar is similar to that of T. limniace (see Journal of the Bombay Natural History Society x, 1896, p. 240). It is said by MacKinnon and de Nicéville to feed on Vallaris dichotoma (Journal of the Bombay Natural History Society xi, 1807, p. 212). Other species include Cosmostigma racemosa, Heterostemma brownii and Cocculus species.
|Wikimedia Commons has media related to Tirumala septentrionis.|
- Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing. p. 151. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
- Savela, Markku. "Tirumala septentrionis (Butler, 1874)". Lepidoptera and Some Other Life Forms. Retrieved July 3, 2018.
- One or more of the preceding sentences incorporates text from this source, which is in the public domain: Bingham, Charles Thomas (1907). Fauna of British India. Butterflies Vol. 2. Taylor & Francis. p. 17.
- One or more of the preceding sentences incorporates text from this source, which is in the public domain: Moore, Frederic (1890–1892). Lepidoptera Indica. Vol. I. London: Lovell Reeve and Co. pp. 34–36.
- Kunte, K. 2005. Species composition, sex-ratios and movement patterns in Danaine butterfly migrations in southern India. Journal of the Bombay Natural History Society 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