Neptis jumbah
Encyclopedia
The Chestnut-Streaked Sailer Neptis jumbah is a species of nymphalid
butterfly
found in South Asia
.
Male somewhat resembles Neptis columella
, but differs as follows:— Upperside fuliginous black, the interspaces between the veins deeper black, very conspicuous in certain lights, particularly so between the subbasal and postdiscal markings on the hind wing ; the white markings suffused with very pale bluish green; the posterior two spots of the discal series on the fore wing subequal; the postdiscal macular band on the hind wing with a tendency to obsolescence, varying from a narrow series of white lunules to a somewhat diffuse transverse narrow pale band. On the underside the ground-colour is paler than in N. columella, the interspaces between the veins conspicuously much darker; the postdiscal and subterminal markings on both fore and hind wings diffuse and very ill-defined. N. jumbah can also be recognized by the discal transverse series of comparatively large dark brown spots.
In the female the spots on the fore wing and the subbasal band on the hind wing are comparatively broader than they are in the male; in the dry-season form of both sexes, as compared with the wet-season form, often conspicuously broader. Antennae, head, thorax and abdomen as in N. columella.
Expanse 62–70 mm.
. Northeast India, Myanmar
and the Andaman Islands
. Sri Lanka
.
[Specimens from the Andamans have the lilacine white terminal markings on the underside very broad and diffuse.]
. Colour brownish-purple, anal segments dark purple-brown spotted with green and bordering an oblique line extending laterally from anal spine to base of spine on fourth segment; two short, oblique, dorsal anteriorly-oblique (?) lateral streaks along middle segments." (Moore.)
Nymphalidae
The Nymphalidae is a family of about 5,000 species of butterflies which are distributed throughout most of the world. These are usually medium sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called...
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 Asia
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...
.
Description
- See glossaryGlossary of Lepidopteran termsThis glossary describes the terms used in the formal descriptions of insect species, jargon used mostly by professionals or entomologist....
for terms used
Male somewhat resembles Neptis columella
Neptis columella
The Short banded Sailer, Neptis columella is a species of nymphalid butterfly found in South Asia and Southeast Asia.-Description:Upperside black, with white markings...
, but differs as follows:— Upperside fuliginous black, the interspaces between the veins deeper black, very conspicuous in certain lights, particularly so between the subbasal and postdiscal markings on the hind wing ; the white markings suffused with very pale bluish green; the posterior two spots of the discal series on the fore wing subequal; the postdiscal macular band on the hind wing with a tendency to obsolescence, varying from a narrow series of white lunules to a somewhat diffuse transverse narrow pale band. On the underside the ground-colour is paler than in N. columella, the interspaces between the veins conspicuously much darker; the postdiscal and subterminal markings on both fore and hind wings diffuse and very ill-defined. N. jumbah can also be recognized by the discal transverse series of comparatively large dark brown spots.
Expanse 62–70 mm.
Distribution
Southern India, in the Nilgiris and the Western GhatsWestern 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...
. Northeast India, Myanmar
Myanmar
Burma , officially the Republic of the Union of Myanmar , is a country in Southeast Asia. Burma is bordered by China on the northeast, Laos on the east, Thailand on the southeast, Bangladesh on the west, India on the northwest, the Bay of Bengal to the southwest, and the Andaman Sea on the south....
and the Andaman Islands
Andaman Islands
The Andaman Islands are a group of Indian Ocean archipelagic islands in the Bay of Bengal between India to the west, and Burma , to the north and east...
. 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...
.
[Specimens from the Andamans have the lilacine white terminal markings on the underside very broad and diffuse.]
Larva
" Somewhat fusiform, anterior and anal segments narrowed, the middle segments being thickened laterally, aimed with two dorsal, long, anteriorly-divergent fleshy processes on the fourth segment, and two shorter posteriorly-divergent similar processes on the twelfth segment, also two very short dorsal spiny tubercles on the third and sixth segments. Head cleft and pointed at the vertexVertex (anatomy)
In arthropod and vertebrate anatomy, the vertex refers to the upper surface of the head.In humans, the vertex is formed by four bones of the skull: the frontal bone, the two parietal bones, and the occipital bone...
. Colour brownish-purple, anal segments dark purple-brown spotted with green and bordering an oblique line extending laterally from anal spine to base of spine on fourth segment; two short, oblique, dorsal anteriorly-oblique (?) lateral streaks along middle segments." (Moore.)
Pupa
"Suspended vertically; slender in the abdominal part with a sharp dorsal ridge, much stouter and broader in the thoracic region ; with wing-cases expanded laterally ; two sharp points on. the head ; colour varying from dark brown to dull white, suffused and touched at points with gold" (Davidson and AitkenEdward Hamilton Aitken
Edward Hamilton Aitken was a civil servant in India, better known for his humorist writings on natural history in India and as a founding member of the Bombay Natural History Society...
See also
- NymphalidaeNymphalidaeThe Nymphalidae is a family of about 5,000 species of butterflies which are distributed throughout most of the world. These are usually medium sized to large butterflies. Most species have a reduced pair of forelegs and many hold their colourful wings flat when resting. They are also called...
- List of butterflies of India
- List of Butterflies of India (Nymphalidae)