Red-eyed Damselfly
Large damselfly ( Erythromma najas ), male
The Great garnet eye ( Erythromma najas ) is a dragonfly of the family Coenagrionidae ( Coenagrionidae ). From their dissemination forth shall be deemed Euro Siberian faunal element.
Features
The Great garnet eye is 35 mm long and has a wingspan just under 50 millimeters on. The males have bright garnet eyes, the sides of the chest and the last two abdominal segments are light blue. The species can be confused with the little damselfly ( Erythromma viridulum ), which carry the male above on the 10th abdominal segment at the Abdomenspitze an X -shaped black markings. This segment is in males of the Great garnet eye very blue. For missing the blue color with them on the sides of the 2nd and the 8th segment. The matt black drawing of yellowish to green female reminiscent of a female damselfly ( Coenagrion spp. ); but it lacks a bright spot between the eyes. To distinguish them from females of the small garnet eye of the rear edge of the front chest ( prothorax ) must be considered; this includes the Grand garnet eye on wavy bulges.
Habitat and Distribution
This Kleinlibellenart likes to sit on leaves of pond and water lilies in larger bodies of water with a species-rich underwater flora. She is quite shy and rarely leaves the direct area of the water surface. The Great garnet eyes live far beyond Europe distributed in Asia up to Japan and in the north to the Arctic Circle, in southern Europe, however, there are only a few stray finds. In central Europe it occurs, however, relatively common.
Reproduction
The flight time is from May to late August. The males are robust and enduring airmen who occupy a territory of three to six meters on the water and quite aggressively defend against competitors, but also other types (even dragonfly ). The couple lays the eggs in water plant stems, which may immerse themselves in extreme cases up to 60 cm deep into the water and remain there for almost an hour. In some cases, the male is decoupled from total dive and waiting at the surface on the returning females. Has this ended his submerged oviposition, it lets go of the plant stems and drives like a cork up. The very quick and lively larvae develop in the body of water and the reeds. For a Slim dragonfly they are relatively large and have wide, dark striped gill lamellae. In the final stage of development they hibernate in the rule.