home / Insecta · vabzdžiai / Ephemeroptera · lašalai / Baetidae · mažieji lašalai / Cloeon dipterum · lašalas){kind=link}
){kind=link}
Cloeon dipterum female · lašalas ♀
- Pond Olive
- Gul sødøgnflue
- Gewone tweevleugel
- murzyłka dwuskrzydła
- gul dammslända
- en.wikipedia.org/wiki/Cloeon_dipterum
- naturespot.org.uk/species/cloeon-dipterum
- gbif.org/species/1407879
The body coloration is variable, but usually reddish-brown. The compound eyes of Cloeon dipterum show a sexual dimorphism, whereby females have lateral apposition eyes, while the males' eyes have additional dorsal "turban-shaped" parts that function as superposition eyes. These extra eyes are thought to enable the males to locate isolated females in the mating swarm. Only one pair of transparent wings, brownishly darkened along the outer edges; veins are clearly visible. Cerci (abdominal appendages) are very long, alternately bicolored. Body length 5-11 mm. The larva grows to about 20 mm. Can be found on the banks of stagnant and slow-flowing waters. Active from July to September. Adults do not feed – their mouthparts are reduced. The larvae capture organic debris in the water and eat algae.
‥
0 comments
Add a comment