Neptis Hylas
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''Neptis hylas'', the common sailor, is a species of
nymphalid The Nymphalidae are the largest family of butterflies, with more than 6,000 species distributed throughout most of the world. Belonging to the superfamily Papilionoidea, they are usually medium-sized to large butterflies. Most species have a red ...
butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...
found in the
Indian subcontinent The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...
and
southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
."''Neptis'' Fabricius, 1807"
at Markku Savela's ''Lepidoptera and Some Other Life Forms''
It has a characteristic stiff gliding flight achieved by short and shallow wingbeats just above the horizontal.


Description

Dry-season form - Upperside black, with pure white markings. Forewing discoidal streak clavate (club shaped), apically truncate, subapically either notched or sometimes indistinctly divided; triangular spot beyond broad, well defined, acute at apex, but not elongate; discal series of spots separate, not connate (united), each about twice as long as broad; postdiscal transverse series of small spots incomplete, but some are always present. Hindwing: subbasal band of even or nearly oven width; discal and subterminal pale lines obscure; postdiscal series of spots well separated, quadrate or subquadrate, very seldom narrow. Underside from pale golden ochraceous to dark ochraceous almost chocolate; white markings as on the upperside, but broader and defined in black. Forewing: interspaces 1a and 1 from base to near the apex shaded with black, some narrow transverse white markings on either side of the transverse postdiscal series of small spots. Hindwing a streak of white on costal margin at base, a more slender white streak below it; the discal and subterminal pale lines of the upperside replaced by narrow white lines with still narrower margins of black. Antennae, head, thorax and abdomen black; the palpi, thorax and abdomen beneath dusky white. Wet-season form - Differs only in the narrowness of the white markings and in the slightly darker ground colour and broader black margins to the spots and bands on the underside. More than 20 subspecies have been described. File:Neptishylas.jpg, Upperside on right, underside left File:Neptis hylas 2.jpg, Mating pair,
Bangalore Bangalore (), officially Bengaluru (), is the capital and largest city of the Indian state of Karnataka. It has a population of more than and a metropolitan population of around , making it the third most populous city and fifth most ...
, India File:Common sailor.jpg, In Dumbara,
Rathnapura Ratnapura (; ) ("City of Gems" in Sinhala and Tamil) is a major city in Sri Lanka. It is the capital city of Sabaragamuwa Province, as well as the Ratnapura District, and is a traditional centre for the Sri Lankan gem trade. It is located on ...
, Sri Lanka File:Common_sailor_(Neptis_hylas_matuta)_Bali_I.jpg, ''N. h. matuta''
Bali, Indonesia File:Common sailor (Neptis hylas matuta) underside Bali I.jpg, ''N. h. matuta''
Bali, Indonesia Common sailer (Neptis hylas kamarupa) male Babai bridge.jpg, male ''N. h. kamarupa''
Nepal Neptis hylas-luculenta.jpg, ''N. h. luculenta''
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
Common sailor (Neptis hylas papaja) Phuket.jpg, ''N. h. papaja''
Phuket, Thailand Common sailor (Neptis hylas papaja) underside Phuket.jpg, ''N. h. papaja''
Phuket, Thailand
This species has been observed to make sounds whose function has not been established.Scott, F.W. (1968). Sound produced by ''Neptis hylas'' (Nymphalidae).
Journal of the Lepidopterists' Society

22(4):254
/ref>


Distribution

Throughout continental
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
;
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
;
Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...
;
Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...
;
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 ...
( Tenasserim), extending to China and
Indomalaya The Indomalayan realm is one of the eight biogeographic realms. It extends across most of South and Southeast Asia and into the southern parts of East Asia. Also called the Oriental realm by biogeographers, Indomalaya spreads all over the Indi ...
.


Life history


Larva

Race ''varmona'' = ''eurynome''.
Frederic Moore Frederic Moore FZS (13 May 1830 – 10 May 1907) was a British entomologist and illustrator. He produced six volumes of ''Lepidoptera Indica'' and a catalogue of the birds in the collection of the East India Company. It has been said that Mo ...
describes this from a drawing by Samuel Neville Ward as follows: "Head larger than the anterior segment,
vertex Vertex, vertices or vertexes may refer to: Science and technology Mathematics and computer science *Vertex (geometry), a point where two or more curves, lines, or edges meet *Vertex (computer graphics), a data structure that describes the position ...
with two short pointed spines, cheeks obtusely spined; third, fourth, sixth and twelfth segments armed with a subdorsal pair of stout fleshy spiny processes, those on the fourth segment longest. Colour pale green; face, the tip of processes and segments slightly washed with pale pinkish, a slight pinkish oblique lateral fascia from an anal process; a small, dark, lateral spot on the sixth segment."


Pupa

"Rather short; head-piece bluntly cleft in front, vertex pointed; thorax dorsally prominent and angular; dorsum angular at base; abdominal segments slightly angled dorsally; wing-cases somewhat dilated laterally. Colour pale brownish-ochreous, with lateral thoracic golden spots."


Larval Host Plants

* ''
Bombax ''Bombax'' is a genus of mainly tropical trees in the mallow family. They are native to western Africa, the Indian subcontinent, Southeast Asia, and the subtropical regions of East Asia and northern Australia. It is distinguished from the genu ...
'' * ''
Bombax ceiba ''Bombax ceiba'', like other trees of the genus ''Bombax'', is commonly known as cotton tree. More specifically, it is sometimes known as Malabar silk-cotton tree; red silk-cotton; red cotton tree; or ambiguously as silk-cotton or kapok, both of ...
'' * ''
Hevea brasiliensis ''Hevea brasiliensis'', the Pará rubber tree, ''sharinga'' tree, seringueira, or most commonly, rubber tree or rubber plant, is a flowering plant belonging to the spurge family Euphorbiaceae Euphorbiaceae, the spurge family, is a large fami ...
'' *
Fabaceae The Fabaceae or Leguminosae,International Code of Nomenc ...
* ''
Canavalia ensiformis ''Canavalia ensiformis'' (jack bean) is a legume which is used for animal fodder and human nutrition, especially in Brazil where it is called ''feijão-de-porco'' ("pig bean"). It is also the source of concanavalin A. Description ''C. ensif ...
'' * ''
Urena lobata ''Urena'' is the genus of plants, which grow in various tropical and subtropical areas worldwide. Some view the plant as a weed, but others make use of its fiber for various purposes. The leaves and flowers are also a famine food in Africa. It ...
'' * ''
Flemingia ''Flemingia'' is a genus of plants in the legume family Fabaceae. It is native to Asia and the species are distributed in Bhutan, Burma, China, India; Indonesia, Laos, Malaysia, Nepal, Pakistan, Papua New Guinea, Philippines, Sri Lanka, Taiwan, ...
'' * ''
Lathyrus ''Lathyrus'' is a genus of flowering plants in the legume family Fabaceae, and contains approximately 160 species. Commonly known as peavines or vetchlings, they are native to temperate areas, with a breakdown of 52 species in Europe, 30 species ...
'' * '' Mucuna purpurea'' * ''
Paracalyx ''Paracalyx'' is a genus of legume in the family Fabaceae. It contains the following species: * ''Paracalyx balfourii'' * ''Paracalyx scariosa'' References

Phaseoleae Taxonomy articles created by Polbot Fabaceae genera {{Phaseoleae- ...
'' * ''
Paracalyx scariosus ''Paracalyx'' is a genus of legume in the family Fabaceae. It contains the following species: * ''Paracalyx balfourii'' * ''Paracalyx scariosa ''Paracalyx'' is a genus of legume in the family Fabaceae The Fabaceae or Leguminosae,
'' * ''
Rhynchosia ''Rhynchosia'', also known as snoutbean, is a genus of plants in the family Fabaceae. There are several different complexes within the genus, including the ''Senna'' complex.Turner,B.L., http://www.biosci.utexas.edu/prc/pdfs/Turner-Lundellia14. ...
'' * '' Vigna cylindrica'' * ''
Vigna unguiculata The cowpea (''Vigna unguiculata'') is an annual herbaceous legume from the genus ''Vigna''. Its tolerance for sandy soil and low rainfall have made it an important crop in the semiarid regions across Africa and Asia. It requires very few inputs, ...
'' * ''
Xylia xylocarpa ''Xylia xylocarpa'' is a species of tree in the mimosoid clade of the subfamily Caesalpinioideae of the family Fabaceae. Description and properties This perennial tree is very conspicuous in the flowering season owing to its bright yellow flow ...
'' * '' Nothapodytes nimmoniana'' *
Malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar ...
* ''
Corchorus ''Corchorus'' is a genus of about 40–100 species of flowering plants in the family Malvaceae, native to tropical and subtropical regions throughout the world. Different common names are used in different contexts, with jute applying to the f ...
'' * ''
Helicteres isora ''Helicteres isora'', sometimes called the Indian screw tree, is a small tree or large shrub found in southern Asia and northern Oceania. It is usually assigned to the family Malvaceae, but it is sometimes assigned to the family Sterculiaceae. Th ...
'' * ''
Triumfetta ''Triumfetta'' is a genus of plants in the family Malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, ...
''


References


External links

* * {{Taxonbar, from=Q2543812
hylas In classical mythology, Hylas () was a youth who served as Heracles's (Roman Hercules) companion and servant. His abduction by water nymphs was a theme of ancient art, and has been an enduring subject for Western art in the classical tradition. ...
Butterflies of Asia Butterflies of Indochina Butterflies described in 1758 Taxa named by Carl Linnaeus Butterflies of Singapore