Orobophana musiva (Gould)

Mosaic Orobophana Snail (Orobophana musiva)

This species was described in 1847, it is found in Fiji, in Samoa, and obviously in Tuvalu as well.

The Mosaic Orobophana Snail is found under decaying vegetation at low elevations, very often near the coast.

It is a very small species, the shells reach heights of only about 0,2 cm, they vary in color from several shades of yellow and orange to reddish-brown.

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References:

[1] Robert H. Cowie; Rebecca J. Rundell: The land snails of a small tropical island, Aunu’u, American Samoa. Pacific Science 56(2): 143-147. 2002

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Hypolimnas bolina (L.)

Blue Moon Butterfly (Hypolimnas bolina)

The Blue Moon Butterfly, also known under the markedly ugly name Great Eggfly, was described in 1764.

The species has an exceptional wide area of distribution, which stretches from Madagascar over Asia and Australia into eastern Polynesia.

Three of the several subspecies occur within the Polynesian region, these are: Hypolimnas bolina ssp. otaheitae (Felder), which occurs on the Austral- and the Cook Islands, the Marquesas, the Society Islands, the Pitcairn Islands, and on Rapa Nui; Hypolimnas bolina ssp. pallescens (Butler), which is found in Fiji, in Tokelau, in Tonga, and in Samoa; Hypolimnas bolina ssp. rarik (Eschscholtz), which occurs in some parts of Kiribati as well as in Tuvalu. Another subspecies, Hypolimnas bolina ssp. nerina (Fabricius) is native to Australia and regularely visits New Zealand, but has not yet established a breeding population there, but probably will do so in time, and thus should be mentioned here too.

Males and females show a striking sexual dimorphism, males are always black with some white spots on the wings, which again are surrounded by a glossy dark blue ring. The females are much more variable in coloration, they furthermore produce several morphotypes, which, in appearance, often resemble other butterfly species, a phenomenon called mimicry.

The males are very territorial, while the females are wandering over wide ranges.

The larvae feed on plant species from the Acanthaceae, Amaranthaceae, Asteraceae, Malvaceae and the Urticaceae family.

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In Niue this butterfly is called pepe mahina lanu.

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References:

[1] R. H. Van Zwaluwenburg: The Insects of Canton Island. Proceedings of the Hawaiian Entomological Society 11(3): 300-312. 1943
[2] Alden D. Hinckley: Ecology of Terrestrial Arthropods on the Tokelau Atolls. Atoll Research Bulletin 124: 1-18. 1969
[3] Jaqueline Y. Miller; Lee D. Miller: The Butterflies of the Tonga Islands and Niue, Cook Islands, with the Descriptions of two new subspecies. Bishop Museum Occasional Papers 34: 1-24. 1993
[4] Brian Patrick; Hamish Patrick: Butterflies of Fiji. The Weta 24(1): 5-12. 2002
[5] Neal L. Evenhuis: Checklist of Fijian Lepidoptera. Bishop Museum Technical Report 38(13): 1-53. 2007
[6] Brian Patrick; Hamish Patrick: Butterflies of the South Pacific. Otago University Press 2012

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Photo: Antonio Machado; by courtesy of Antonio Machado

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edited: 18.08.2017

Fimbristylis cymosa R. Br.

Hurricane-Grass (Fimbristylis cymosa)

Distribution:

Austral Islands: Rimatara, Rurutu, Tubuai
Cook Islands: ‘Atiu, Mangaia, Manihiki, Manuae, Ma’uke, Miti’aro, Nassau, Palmerston, Pukapuka, Rakahanga, Rarotonga, Suwarrow, Tongareva
Fiji: Rotuma, Viti Levu
Gambier Islands: Mangareva, Taravai, Totegegie
Hawai’i Islands: French Frigate Shoals, Hawai’i, Kaua’i, Kure, Lana’i, Laysan, Lehua, Maui, Midway, Moloka’i, Ni’ihau, O’ahu
Kiribati: Abariringa, Baker Island, Enderbury Island, Jarvis Island, Kiritimati, Manra, Nikumaroro, Orona, Palmyra-Atoll, Tabuaeran, Teraina
Marquesas: Eiao, Ua Huka
Niue
Pitcairn Islands: Henderson Island
Samoa: ‘Aunu’u, Fanuatapu, Nu’ulua, Nu’utele, Ofu, Olosega, Savai’i, Ta’u, Tutuila
Society Islands: Bora Bora, Huahine, Maiao, Me’eti’a, Mo’orea, Ra’iatea, Taha’a, Tahiti, Tetiaroa, Tupai
Tokelau: Atafu, Fakaofo, Nukunonu, Olohega
Tonga: ‘Eua, Fafa, Fukave, Malinoa, Manima
Tuamotu Archipelago: Apataki, Hao, Makatea, Manihi, Niau, Rangiroa, Takapoto, Tenarunga, Tikehau, Toau
Tuvalu: Nui
Wallis & Futuna: Futuna, ‘Uvea

local name:

mati upoo – Tuamotu Archipelago
mauku – ‘Atiu, Manihiki, Rakahanga, Tongareva / Cook Islands
mau’u’aki’aki – Hawai’i Islands
mouku – Tuamotu Archipelago
kukuti – Tuamotu Archipelago
pako pako – Tahiti / Society Islands
papa ‘enua – Ma’uke / Cook Islands
pupu – Rotuma / Fiji
te uteute ni mane – Kiribati
tuise – Tokelau
tumu ‘enua – Palmerston / Cook Islands
uti’uti hu’a – Society Islands
vayavaya – Nassau, Pukapuka / Cook Islands

~~~

Two of three accepted subspecies of this species are known to occur within the Polynesian region, Fimbristylis cymosa ssp. cymosa R. Br. and Fimbristylis cymosa ssp. umbellatocapitata (Hillebr.) T. Koyama.

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References:

[1] Albert C. Smith: Flora Vitiensis Nova: A new flora of Fiji (Spermatophytes only). Vol. 1. Lawai, Kauai, Hawaii 1979

Pteropus tonganus Quoy & Gaimard

Tongan Fruit-Bat (Pteropus tonganus)

The Tongan Fruit-Bat occurs with several subspecies in an area that stretches from New Guinea to the Cook Islands in Central Polynesia, whereby the form, that can be found in Polynesia, represents the nominate race.

These animals reach a wing span of more than one metre and spend the day more or less sleeping in roosting trees, where they sometimes form giant colonies.

In most parts of its geographic range the species is an important source of protein and is therefore heavily hunted, but also because the Fruit-Bats, being frugivores, can cause enormous damages in fruiting trees. Hence the species has become rare in some parts of its geographic range, in others it has even disappeared completely.

In the Kingdom of Tonga in contrast Tongan Fruit-Bats are considered as property of the royal family and therefore are protected from hunting – a very effective protection.

On the Cook Islands, the eastern most edge of its distribution area, the Tongan Fruit-Bat is called moa kirikiri, which means ‘leather chicken’. On the Fijian Islands it is called beka, bekua (in the west part of Viti Levu), beka dina or doli (on Kadavu).

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References:

[1] Jorge M. Palmeirim; Alan Champion; Alivereti Naikatini, Jone Niukula; Marika Tuiwawa; Martin Fisher; Mere Yabaki-Gounder; Sólveig Thorsteinsdóttir; Stanley Qalovaki; Thomas Dunn: Distribution, Status, and Conservation of Bats in the Fiji Islands. Oryx 41(4): 509-519. 2006

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Photo: Dr. Paddy Ryan; by courtesy of Dr. Paddy Ryan

http://www.ryanphotographic.com

Schizostachyum glaucifolium (Rupr.) Munro

Schizostachyum glaucifolium

Distribution:

Fiji: Moala, Ovalau, Rotuma, Taveuni, Vanua Levu, Viti Levu
Samoa: ‘Aunu’u, Nu’ulua, Nu’utele, Ofu, Olosega, Savai’i, Ta’u, ‘Upolu

local names:

bitu – Fiji
bitu dina – Fiji
bitu kau – Fiji
bitu ni viti – Fiji

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References:

[1] Albert C. Smith: Flora Vitiensis Nova: A new flora of Fiji (Spermatophytes only). Vol. 1. Lawai, Kauai, Hawaii 1979

Agriocnemis exsudans Sélys

Narrow-winged Damselfly (Agriocnemis exsudans)

The genus Agriocnemis comprises about 40 species, two of which occur within the Polynesian region.

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The Narrow-winged Damselfly shows a wide distribution, which stretches from Australia across Melanesia up to Polynesia, were it is found on the Norfolk Islands, in Fiji, Samoa, and Tonga, and on the Cook Islands. [1][2][3][4]

The species reaches a body length of about 3 cm.

The species mainly inhabits standing waters, but it can also be found at very slow flowing stream sections.

~~~

The name Agriocnemis vitiensis Tillyard is a synonym for this species.

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References:

[1] N. Mary; A. Dutartre; P. Keith; G. Marquet; P. Sasal: Biodiversité des Eaux Douces de Wallis et Futuna; Mission d’Octobre 2004. Rapport Final, Ministère de l’Outre-Mer 2006
[2] C. Morrison; S. Nawadra; M. Tuiwawa: A rapid biodiversity assessment of the Nakorotubu Range, Ra and Tailevu Provinces, Fiji. RAP Bulletin of Biological Assessment 59. Conservation International, Arlington, VA, USA 2009
[3] Milen Marinov: Contribution to the Odonata of the Kingdom of Tonga. Faunistic Studies in South-East Asia and Pacific Island Odonata 1: 1-18. 2013
[4] Milen Marinov; Mark Schmaedick; Dan Polhemus; Rebecca L. Stirnemann; Fialelei Enoka; Pulemagafa Siaifoi Fa’aumu; Moeumu Uili: Faunistic and taxonomic investigations on the Odonata fauna of the Samoan archipelago with particular focus on taxonomic ambiguities in the “Ischnurine complex”. Journal of the International Dragonfly Fund 91: 1-56. 2015

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agriocnemis-exsudans-dmm

Photo: Dr. Milen Marinov; by courtesy of Dr. Milen Marinov

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edited 03.03.2017

Euploea lewinii Felder & Felder

Crow Butterfly (Euploea lewinii)

This species, whose taxonomy is very confusing, occurs with several (?) subspecies within the Polynesian region, whereby, however, it seems not to be completely known, how far they are distributed here naturally.

Shown here is the Fijian subspecies (Euploea lewinii ssp. eschscholzii Felder & Felder).

Additional subspecies occur on the Samoan Islands (Euploea lewinii ssp. bourkei (Poulton)), on Tonga (Euploea lewinii ssp. mathewi (Poulton)) as well as on Niue and the Cook Islands (Euploea lewinii ssp. perryi (Butler)).

The caterpillars feed on the leaves of various fig species, including the Pacific Banyan (Ficus prolixa G. Forst.) and the Dye Fig (Ficus tinctoria G. Forst.).

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References:

[1] Alden D. Hinckley: Ecology of Terrestrial Arthropods on the Tokelau Atolls. Atoll Research Bulletin 124: 1-18. 1969
[2] Jaqueline Y. Miller; Lee D. Miller: The Butterflies of the Tonga Islands and Niue, Cook Islands, with the Descriptions of two new subspecies. Bishop Museum Occasional Papers 34: 1-24. 1993
[3] Brian Patrick; Hamish Patrick: Butterflies of Fiji. The Weta 24(1): 5-12. 2002
[4] Neal L. Evenhuis: Checklist of Fijian Lepidoptera. Bishop Museum Technical Report 38(13): 1-53. 2007

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euploea-l-eschscholtzii-dhg

Photo: Donald H. Gudehus; by courtesy of Donald H. Gudehus

http://www.parfaitimage.com

Aidia racemosa (Cav.) Tirveng.

Aidia racemosa

Distribution:

Samoa: ‘Aunu’u, Fanuatapu, Namu’a, Nu’ulua, Nu’utele, Savai’i, Tutuila, ‘Upolu
Tonga: ‘Uta Vava’u
Wallis & Futuna: Futuna, ‘Uvea

local name: –

Caesalpinia bonduc (L.) Roxb.

Caesalpinia bonduc

Distribution:

Austral Islands: Rapa
Fiji: Leleuvia, Makaluva, Nasoata, Nayau, Nukuci, Nukulau, Nukulevu, Rotuma, Sawa-i-lau, Vanua Balavu, Vanua Levu, Viti Levu, Yasawa
Gambier Islands: Kamaka
Hawai’i Islands: Hawai’i, Kaua’i, Laysan, Maui, Moloka’i, Ni’ihau, O’ahu
Marquesas: Hatuta’a, Hiva Oa, Mohotani, Nuku Hiva, Tahuata, Ua Huka, Ua Pou
Niue
Norfolk Islands: Norfolk Island
Pitcairn Islands: Henderson Island
Samoa: Apolima, ‘Aunu’u, Manono, Namu’a, Nu’ulua, Nu’utele, Savai’i, ‘Upolu
Tonga: ‘Ata, Fafa, Foa, Niuatoputapu, Oneata, Onevai, Pangaimotu, Tongatapu

local names:

anaoso – Samoa
hihikolo – Hawai’i Islands
kakalaioa – Hawai’i Islands
soni – Vanua Levu / Fiji
tartar mann – Rotuma / Fiji

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References:

[1] Albert C. Smith: Flora Vitiensis Nova: A new flora of Fiji (Spermatophytes only). Vol. 3. Lawai, Kauai, Hawaii 1985

Dendrobium dactylodes Rchb. f.

Dendrobium dactylodes

Distribution:

Fiji: Viti Levu
Samoa: Apolima, ‘Aunu’u, Namu’a, Nu’utele, Ofu, Olosega, Savai’i, Ta’u, Tutuila, ‘Upolu
Tonga: Tafahi

local names: –

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References:

[1] Albert C. Smith: Flora Vitiensis Nova: A new flora of Fiji (Spermatophytes only). Vol. 5. Lawai, Kauai, Hawaii 1991