Ischnura haemastigma Fraser

Bloodstain Forktail (Ischnura haemastigma)

This species was described in the year 1927 on the basis of a single male specimen, which was collected in the center of the island of ‘Upolu, at an elevation of about 610 m.

The head is mainly bright lemon yellow colored. The thorax is also lemon yellow colored and marked with black, the abdomen is dirty black in color, the last three segments are marked with blue. The legs are bright blood red in color.

The Bloodstain Forktail reaches a wingspan of about 3 cm, the wings are transparent, the pterostigma (wing mark) of the forewings is nearly square-shaped and crimson in color.

The first female specimen of this species were described in the year 1953. [1][2]

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The status of the Bloodstain Forktail, like those of almost all endemic Samoan Dragonflies, is completely unknown, it was not recorded during recent field surveys and may in fact be extinct. [3]

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References:

[1] F. C. Fraser: Further notes on Samoan Odonata belonging to the ischnurine complex of species, with descriptions of two new species and some unknown females. Proceedings Royal Entomological Society London. Series B 22(7/8): 119-126. 1953
[2] M. Marinov; W. Chin; E. Edwards; B. Patrick; H. Patrick: A revised and updated Odonata checklist of Samoa (Insecta: Odonata). Faunistic Studies in South-East Asian and Pacific Island Odonata 5: 1-21. 2013
[3] 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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Photo: The Trustees of the Natural History Museum, London

(under creative commons license (4.0))
http://creativecommons.org/licenses/by/4.0

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edited: 28.06.2017

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