Calliphora bryani Kurahashi

Rawaki Blow Fly (Calliphora bryani)

The Rawaki Blow Fly is obviously endemic to the island of Rawaki, where it feeds upon the carcasses of dead seabirds.

It is an about 0,5 to 0,7 cm long fly with a reddish-brown thorax, which is silver-grey dusted throughout. The abdomen is glossy bronze in color, the legs are reddish brown. The wings are hyaline.

The Rawaki Blow Fly is viviparous, that means it doesn’t lay eggs but gives birth to fully developed larvae.

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References:

[1] Hiromu Kurahashi: Tribe Calliphornini from Australian and Oriental regions, III. a new Calliphora from Phoenix Island, with an establishment of a new subgenus (Diptera: Calliphoridae). Pacific Insects 14(2): 435-438. 1972

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Asteia montgomeryi Hardy

Montgomery’s Asteiid Fly (Asteia montgomeryi)

This species was described in the year 1980, this is one of the few species within this genus, that seems to be endemic to a single island within the Hawaiian chain.

The larvae are known to develop inside the rotting stems of dead Wiliwili trees (Erythrina sandwichensis O. Deg.).

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References:

[1] Patrick M. O´Grady; Karl Nicholas Magnacca: Studies in Hawaiian Diptera I: New distributional records for endemic Asteia (Asteiidae). Biodiversity Data Journal 2: e1010. doi: 10.3897/BDJ.2.e1010

Zealandofannia mystacina Domínguez & Pont

New Zealand Bat Fly (Zealandofannia mystacina)

This species was described in 2014.

The New Zealand Bat Fly is about 0,35 cm long and mainly black colored.

The larvae feed on the guano of the endemic New Zealand Short-tailed Bat (Mytscina tuberculata Gray). [1]

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References:

[1] M. C. Domínguez; A. C. Pont: Fanniidae (Insecta: Diptera). Fauna of New Zealand 71. 2014

Dichaetomyia taveuniana Pont & Evenhuis

Taveuni House Fly (Dichaetomyia taveuniana)

The Taveuni House Fly was described in the year 2006, it was found during the sorting of insect trap material from the islands of Taveuni and Viti Levu.

It is a small, orange colored fly with a dark pattern on the dorsal side of the thorax.

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The species belongs to a quite large genus, of which, however, only three species are known to occur on the Fijian Islands. Beside the new species these are the Elegant House Fly (Dichaetomyia elegans Malloch), which is known from the islands of Ovalau, Vanua Levu and Viti Levu, and the Orange House Fly (Dichaetomyia vicaria (Walker)), which is widely distributed, and which may not be native to the Fijian Islands.

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References:

[1] Adrian C. Pont; Neal Evenhuis: A New Species of Dichaetomyia Malloch (Diptera: Muscidae) from the Fijian Islands. Fiji Arthropods VI. Edited by Neal L Evenhuis & Daniel J. Bickel. Bishop Museum Occasional Papers 90: 3-7. 2006

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edited: 23.06.2017

Trupanea bidensicola Hardy & Delfinado

Beggarticks Fruit Fly (Trupanea bidensicola)

The Beggarticks Fruit Fly comes from the island of Kaua’i and was described in the year 1980.

It closely resembles the Thick-legged Fruit Fly (Trupanea crassipes (Thomson)) and was considered identical with it for some time.

The larvae of this species feed on the developing seeds of the Cosmosflower Beggarticks (Bidens cosmoides (A. Gray) Sherff), and probably also on other species from that genus.

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edited: 23.06.2017

Campsicnemus prestoni Evenhuis

Preston’s Long-legged Fly (Campsicnemus prestoni)

Distribution:

Hawai’i Islands: Hawai’i

local names: –

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Preston’s Long-legged Fly was described in 2007, it is endemic to Hawai’i, where it apparently inhabits several kipuka near the saddle Road on the slopes of Mauna Loa.

The species reaches a length of up to 0,2 cm, its head is shining dark brown, the clypeus and face are brown, the thorax is brown throughout, the abdomen is brown as well and beras short hairs dorsally on each tergite, the legs are yellowish brown. The wings are up to o, 23 cm long and subhyaline. Males and females are similar. [1]

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References:

[1] Neal L. Evenhuis: New Hawaiian Campsicnemus (Diptera: Dolichopodidae). Records of the Hawaii Biological Survey for 2006. Edited by Neal L. Evenhuis & Lucius G. Eldredge. Bishop Museum Occasional Papers 95: 9-16. 2007

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edited: 24.12.2018

Trupanea celaenoptera Hardy

Brown-winged Fruit Fly (Trupanea celaenoptera Hardy)

The Brown-winged Fruit Fly from the island of Hawai’i is related to the Black-winged Fruit Fly (Trupanea nigripennis Hardy).

The species reaches a length of about 0,42 cm and has about 0,44 cm long, almost completely brown colored wings.

The larvae of this species feed on the plant tissue of several (?) Dubautia spp., whereby they cause galls on the stems of the plants they afflict.

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The larvae themselves again, are obviously parasitized by the native Metallic Glossy Eulophid Wasp (Euderus metallicus (Ashmead)).

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edited: 14.02.2017

Campsicnemus aa Evenhuis

Nukuhiva Long-legged Fly (Campsicnemus aa)

This species from the island of Nuku Hiva was described in the year 2009.

The males reach a length of about 0,34 cm, the pale smoky grey colored wings are of about the same lenght. The head is dark brown to black in color, the thorax, which is slightly shimmering bluish on the upside, is brown to dark brown colored and covered with several black setae, the abdomen is dark brown in color and likewise covered with black setae on the upside. The legs are yellowish resp. yellowish brown in color.

The females of this species are hitherto unknown. [1]

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About 200 species of the genus Campsicnemus are currently known from the Polynesian region alone, new species are discovered and described regularely.

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References:

[1] Neal L. Evenhuis: Review of Camspicnemus (Diptera: Dolichopodidae) of the Marquesas, French Polynesia, with description of four new species groups. Zootaxa 2004: 25-48. 2009

Humongochela hardyi Evenhuis

Hardy’s Waterfall-loving Long-legged Fly (Humongochela hardyi)

This species, which is endemic to the island of Nuku Hiva, was described in the year 2004, together with the two other presently known species from this genus.

The males reach a size of about 0,56 to 0,58 cm. The head is grey to black in color, the thorax and the abdomen are dark brown. The legs are yellow resp. brown in color. The wings are about 0,5 cm long and subhyaline throughout.

The females are completely black in color, but show a blue-green gloss. Their legs are brown colored. The wings are smoky brown in color, the veins are somewhat darker.

This species was found on several places of the island, but always within the immediate proximity of waterfalls.

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References:

[1] Neal L. Evenhuis: Humongochela, a new genus of waterfall-loving flies from the Marquesas Islands (Diptera: Dolichopodidae). Bishop Museum Bulletin in Entomology 12: 35-43. 2004

Gonomyia tahitiensis Alexander

Tahitian Crane Fly (Gonomyia tahitiensis)

This species, which comes from the island of Tahiti, was described in the year 1921.

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Lucy Evelyn Cheesman writes in the year 1932 in ‘Hunting insects in the South Seas’.:

“They have one most curious and unaccountable habit, shared with many other midges, and that is to hang upside down in cobwebs. The spiders know them quite well, and apparently make no attempt to catch them. But although some of the webs where they hang are sticky to the touch, yet the midges never seem to be entrapped. It is a curious habit for any insect to hang suspended in this fashion, and why they should do so in a place so fraught with danger as a spider’s web is incomprehensible. On some islands there are spiders with white bands to their legs which at first sight can be mistaken for these midges, but whether the spider mimics the midge or the other way is not plain, for it is difficult to see what advantage such mimicry would be to either.” [1]

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References:

[1] L. E. Cheesman: Hunting insects in the South Seas. Ballou 1933
[2] C. P. Alexander: Tipulidae of the Southeastern Pacific (Diptera). Bishop Museum Occasional Papers 18(22): 337-347. 1947
[3] J. H. Nitta; P. M. O´Grady: Mitochondrial phylogeny of the endemic Hawaiian craneflies (Diptera, Limoniidae, Dicranomyia): Implications for biogeographiy and species formation. Mol. Phylogenet. Evol. (2008), doi:10.1016/j.ympev.2007.12.021