Erythrodiplax abjecta

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Erythrodiplax abjecta
Systematics
Subordination : Dragonflies (Anisoptera)
Superfamily : Libelluloidea
Family : Libellulidae (Libellulidae)
Subfamily : Sympetrinae
Genre : Erythrodiplax
Type : Erythrodiplax abjecta
Scientific name
Erythrodiplax abjecta
( Rambur , 1842)

The Erythrodiplax abjecta is a species of dragonfly of the genus Erythrodiplax from the subfamily Sympetrinae . The species is distributed between California and Paraguay .

Construction of the Imago

The male of the Erythrodiplax abjecta is a predominantly brownish to black dragonfly with a slim abdomen between 21 and 23.5 millimeters long . Towards the thorax it turns a soot-colored red, which then appears on the thorax. The upwards quite strongly lobed frons is red and even dark purple in the upper half. But it can also be metallic blue. The occiput is drawn far forward so that the eyes only touch a small section. The hind wings are transparent with a black spot at the base. This basal spot is significantly weaker or not visible on the forewings. The wing mark ( pterostigma ) is larger than the adjacent costal field . In contrast, the females are light brown or olive in color and wear a light yellow on the base of the wing instead of the dark spot of the males. The size of the abdomen is 19.5 to 21.5 millimeters, which is significantly shorter than that of the male.

Hind wings of a female

Scientific description

The first scientific description of the animal was made by Rambur in 1842 under the name Libellula abjecta using a male from Colombia . The location of this holotype is unknown today. In 1891 Karsch already described one specimen as belonging to the correct genus, as Erythrodiplax ponderosa . The male he describes came from Ecuador and is now in the Museum of Natural History in Berlin . Another male, this time from California, was described by Philip Powell Calvert in 1895 under the name Trithemis basifusca . The copy is now in the California Academy of Sciences . It was Calvert who provided the description of a female in 1906. Borror established the synonymity of the Trithemis basifusca in 1942.

credentials

  1. ^ A b Henrik Steinmann: World Catalog of Odonata (Volume II Anisoptera) [p. 542f], de Gruyter, 1997, ISBN 3-11-014934-6
  2. ↑ Jules Pièrre Rambur : Histoire naturelle des insectes: Névroptères [p. 83f], Librairie Encyclopédique de Roret, 1842, [1]
  3. ^ A b A. E. Eaton and Philip P. Calvert: Insecta. Neuroptera. Ephemeridæ and Odonata. [London: published for the editors by RH Porter]: 1892-1908.