Umma gumma
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| Dijkstra , Mézière & Kipping , 2015 |
Umma gumma is a species of the demoiselle from the genus Umma with distribution in tropical Central Africa.
features
Umma gumma is a relatively large dragonfly with hind wing lengths of 31 to 35 millimeters. Only the male is described, the female is so far indistinguishable from the related species. This is quite uniformly colored, with a blue-green metallic head, torso and abdomen from above. The legs and prosternum are dark brown to black. The face and the base of the mandibles are whitish, the prosternum has scattered white hair. The wings are predominantly crystal clear (hyaline) with partially metallic blue-green veins.
The following features also differ from the very similar Umma longistigma : The quadrilateral cell (a cell of the wing veins in the forewing, near the base of the wing) has 6 to 10 transverse veins, the pterostigma is angularly bounded towards the middle (proximal) of the body. In addition, the shape and bristling of the mating and clasping organs at the apex of the abdomen ( Paraproct and Cerci) are species-specific.
distribution
The species has been identified from the Democratic Republic of the Congo , the Republic of the Congo (Brazzaville), Cameroon and Gabon .
habitat
The larva of Umma gumma lives in medium-sized rivers , mostly with a sandy bottom, in the rainforests of Central Africa. It has been proven up to an altitude of 620 meters. The species prefers relatively well-sunlit parts of the water. The males only fly along the banks in bright sunshine. Umma gumma usually occurs together with Umma longistigma in their habitat , but is somewhat rarer than this.
Taxonomy, name
The species was not described again until 2015 after it had not been differentiated from the similar Umma longistigma for a long time . Earlier editors such as Elliot Pinhey and Graham Vick had already noticed that this species appeared to appear in two forms, but had not yet distinguished them as species. The name of the species was given after the album Ummagumma by the British rock band Pink Floyd .
swell
- Umma gumma Dijkstra, Mézière & Kipping, 2015, Robust Sparklewing In Dijkstra, K.-DB (editor). African Dragonflies and Damselflies Online. http://addo.adu.org.za .
- Klaas-Douwe B. Dijkstra, Jens Kipping, Nicolas Mézière (2015): Sixty new dragonfly and damselfly species from Africa (Odonata). Odonatologica 44 (4): 447-678, pp. 457-461.
Web links
- nature needs more explorers. What sixty new dragonfly and damselfly species from Africa can say about the state of our most critical resource and the exploration of life . PDF file about the discovery of the 60 new African dragonfly species, including a. also umma gumma . JRS Biodiversity Foudation & Naturalis Biodiversity Center.