Byasa dasarada, the great windmill, is a butterfly found in India that belongs to the windmills genus, Byasa, comprising tailed black swallowtail butterflies with white spots and red submarginal crescents.
| Great windmill | |
|---|---|
_2012_10_11_10_10_57_kamlang_(8192408127).jpg)
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| from Arunachal Pradesh | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Papilionidae |
| Genus: | Byasa |
| Species: | B. dasarada
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| Binomial name | |
| Byasa dasarada | |
| Subspecies | |
|
5; see text | |
| Synonyms | |
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Range and status edit
Northern India, Nepal, Bhutan, Myanmar, south-eastern China (including Hainan island (Guangdong province)).
The great windmill is not rare or threatened.
Subspecies edit
There are five subspecies. The following occur in the Indian neighbourhood:
Description edit
- Wingspan: 100 to 140 mm.
- The butterflies resemble the common windmill but are usually larger with broader tails.
- The upper hindwing marginal crescent is white or cream-coloured.
- Sexes similar. The female often has a complete discal band of white spots on the hindwing.
The butterfly is considered to be beautiful in appearance.
Habits edit
The great windmill is a woodland butterfly. It can often be spotted slowly and gracefully flying across clearings. It flies between 4,000 and 9,000 feet (1,200 and 2,700 m) in the spring and summer. Its habits resemble those of the common windmill.
Life cycle edit
Egg edit
Not described.
Larva edit
The ground colour of the larva varies in shades of grey and has a pattern of black lines. It has an orange osmeterium. The larva has a large number of tubercles arranged in two lateral and two sub-dorsal rows. The third and fourth segments have an additional pair of tubercles. The tubercles all have red tips, except those on the seventh and eighth segments which are almost entirely dirty white and the eleventh segment which has the same colour on just the tips of the tubercles.
Pupa edit
Pupa is yellow green with blue bands. It has an orange protuberance on its back. It is attached to its support by a black body and anal pad. The pupa emits a squeak when touched.
Food plant edit
Gallery edit
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B. d. dasarada at Samsing in Darjeeling district of West Bengal, India
See also edit
References edit
- ^ Häuser, Christoph L.; de Jong, Rienk; Lamas, Gerardo; Robbins, Robert K.; Smith, Campbell; Vane-Wright, Richard I. (28 July 2005). "Papilionidae – revised GloBIS/GART species checklist (2nd draft)". Entomological Data Information System. Staatliches Museum für Naturkunde Stuttgart, Germany. Archived from the original on 9 September 2010. Retrieved 21 June 2013.
- Collins, N. Mark; Morris, Michael G. (1985). Threatened Swallowtail Butterflies of the World: The IUCN Red Data Book. Gland & Cambridge: IUCN. ISBN 978-2-88032-603-6 – via Biodiversity Heritage Library.
- Evans, W.H. (1932). The Identification of Indian Butterflies (2nd ed.). Mumbai, India: Bombay Natural History Society.
- Haribal, Meena (1992). The Butterflies of Sikkim Himalaya and Their Natural History. Gangtok, Sikkim, India: Sikkim Nature Conservation Foundation.
- Wynter-Blyth, Mark Alexander (1957). Butterflies of the Indian Region. Bombay, India: Bombay Natural History Society. ISBN 978-8170192329.
External links edit
- Global Butterfly Information System Lectotype text, images
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