Tirumala septentrionis
Encyclopedia
The Dark Blue Tiger is a Danaid butterfly
Butterfly
A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 found in South
South Asia
South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 and Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

.

Description

Closely resembles Tirumala limniace
Tirumala limniace
The Blue Tiger is a butterfly found in India that belongs to the Crows and Tigers, that is, the Danaid group of the Brush-footed butterflies family. This butterfly shows gregarious migratory behaviour in southern India.-Description:...

, 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.

Distribution

The Himalayas
Himalayas
The Himalaya Range or Himalaya Mountains Sanskrit: Devanagari: हिमालय, literally "abode of snow"), usually called the Himalayas or Himalaya for short, is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau...

 from Simla to Sikhim, into Assam, Myanmar and Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

; Orissa
Orissa
Orissa , officially Odisha since Nov 2011, is a state of India, located on the east coast of India, by the Bay of Bengal. It is the modern name of the ancient nation of Kalinga, which was invaded by the Maurya Emperor Ashoka in 261 BC. The modern state of Orissa was established on 1 April...

 ;W.B, Southern India., the Western Ghats
Western Ghats
The Western Ghats, Western Ghauts or the Sahyādri is a mountain range along the western side of India. It runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. The Western Ghats block rainfall to the Deccan...

 and Nilgiris
Nilgiris (mountains)
The Nilgiri , often referred to as the Nilgiri Hills, are a range of mountains with at least 24 peaks above , in the westernmost part of Tamil Nadu state at the junction of Karnataka and Kerala states in Southern India...

; Sri Lanka
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...

.

Habits

This species is one of the predominant species (78%) during the migratory season in southern India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 during which many species migrate. Both males and females appear to migrate in equal numbers.

Life cycle

Caterpillar is similar to that of T. limniace (see Jour. 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.

External links


See also

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