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''Byasa polla'', the De Nicéville's windmill, is a butterfly found in India that belongs to the windmills genus (''
* Wingspan: 110–130 mm.
* Similar to the rose windmill (''Byasa latreillei'') but the fringe from tornus to vein 3 is vermilion red and not black.
Male "Very closely resembles '' B. latreilli'' male, but judging by a single specimen the fore wing is proportionately rather narrower, the termen more oblique, the tornus more rounded. The markings on the hind wing differ as follows:—the discal white patch composed of four elongate spots in interspaces 2-4, that in interspace 4 very broad, filling the interspace between the middle of veins 5 and 6; subterminal series of lunules larger than in ''latreilli'', and all vermilion-red, not crimson, both on the upper and undersides; cilia between tornus and apex of vein 3, apex of tail and cilia at apex of vein 5 vermilion-red. On the underside, the spot of the discal patch in interspace 1 is vermilion-red, and the red lunule of the subterminal series in interspace 2 is produced to the vermilion-red terminal edging below it. Antennas, head, thorax and abdomen as in ''P. latreillei''."
Female. "Appears to differ only from the male on the upperside of the hind wing in the white patch, which is continued posteriorly to the abdominal margin or nearly so and does not extend into the end of the cell." (de Nicéville, quoted in Bingham)
"This seems to be a very rare insect, at any rate within British territory, only single specimens seem to have been taken so far. Of these, one, a female, now in the British Museum, I took at over 5000 feet elevation, on the shoulder of the hillside on which were built the barracks for the troops at Bernardmyo, in the Ruby Mines district, Upper Burma."
Byasa
Red-bodied swallowtails or ruby swallowtail ( due to the color ) are butterflies in the swallowtail family, that belong to the genera ''Atrophaneura'', ''Byasa'', ''Losaria'', or ''Pachliopta''. They are generally found in Asia ( Indomalayan ...
''), comprising tailed black swallowtail butterflies with white spots and red submarginal crescents.
Range
It is found in north east India,Myanmar
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...
(eastern Bhamo and Bernardmyo of Shan states), northern Thailand, northern Laos
Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...
and south western China.
In India, it is found in the states of Assam, Arunachal Pradesh, Manipur and the Chin hills in Nagaland.
Status
It is very rare and protected by law in India. More information is needed on the distribution and status.Description
* Wingspan: 110–130 mm.
* Similar to the rose windmill (''Byasa latreillei'') but the fringe from tornus to vein 3 is vermilion red and not black.
Male "Very closely resembles '' B. latreilli'' male, but judging by a single specimen the fore wing is proportionately rather narrower, the termen more oblique, the tornus more rounded. The markings on the hind wing differ as follows:—the discal white patch composed of four elongate spots in interspaces 2-4, that in interspace 4 very broad, filling the interspace between the middle of veins 5 and 6; subterminal series of lunules larger than in ''latreilli'', and all vermilion-red, not crimson, both on the upper and undersides; cilia between tornus and apex of vein 3, apex of tail and cilia at apex of vein 5 vermilion-red. On the underside, the spot of the discal patch in interspace 1 is vermilion-red, and the red lunule of the subterminal series in interspace 2 is produced to the vermilion-red terminal edging below it. Antennas, head, thorax and abdomen as in ''P. latreillei''."
Female. "Appears to differ only from the male on the upperside of the hind wing in the white patch, which is continued posteriorly to the abdominal margin or nearly so and does not extend into the end of the cell." (de Nicéville, quoted in Bingham)
"This seems to be a very rare insect, at any rate within British territory, only single specimens seem to have been taken so far. Of these, one, a female, now in the British Museum, I took at over 5000 feet elevation, on the shoulder of the hillside on which were built the barracks for the troops at Bernardmyo, in the Ruby Mines district, Upper Burma."
Taxonomy
No separate subspecies have been described.Habits
Recorded from Manipur to Nagaland in June.See also
* Papilionidae * List of butterflies of India *List of butterflies of India (Papilionidae)
This is a list of the butterflies of family Papilionidae (superfamily Papilionoidea), or the swallowtails, which are found in India. This family of large and beautiful butterflies is well represented with 89 species found within Indian borde ...
Cited references
References
* * * Byasa Butterflies of Asia Butterflies described in 1897 {{Papilionidae-stub