Coenagrion lunulatum (Charpentier, 1840)
Common name: Irish Damselfly
Preferred environment: mesotrophic pools in bogs and small sheltered lakes. In Ireland on large pools on cutover raised bogs. In Siberia in eutrophic pools (van Tol and Vedonk 1988).
Flight period: End of May to end of June. In Ireland the beginning of May to mid July.
Adult habitat and habits: adults stay close to breeding sites resting and feeding in marginal and surrounding vegetation. Adult males sit on floating aquatic plants often chasing other males and changing perches. Pairs seen approaching breeding sites in tandem.
Oviposition site and behaviour: Female oviposits whilst in tandem in flower stems of Potamogeton spp.
Larval habitat and habits: not known but in Ireland larvae have been taken in shallow pools.
Emergence behaviour: In Ireland emergence recorded during day on vertical emergent plant stems of Phragmites and Equisetum fluviatile.
Range: central and northern Europe from southern France to northern Scandinavia. Very local in western and southern part of range. Through Siberia to Mongolia and Japan. Absent from Britain. In Ireland confined to north and midlands in about 35 scattered sites.
Determination of adults: species is keyed and diagnostic characters of both sexes are figured in Askew (1988). Both sexes are illustrated in colour in Askew (1988) and Brooks (1997).
Determination of larvae: keys to mature larvae in Askew (1988), Brooks (1997) and Norling and Sahlen (1997). Photograph of mature larva in Brooks (1997).
|Nelson, B., Thompson, R. & Morrow, C., 2000 (May 2). [In] DragonflyIreland http://www.ulstermuseum.org.uk/dragonflyireland/|