Damselflies and Dragonflies of the Welsh Harp

Based on the article “Damselflies and Dragonflies (Odonata)”, by Roy Beddard, in Birds of Brent Reservoir: The Natural History of the Welsh Harp

To date, 15 species within the order Odonata have been recorded at the Welsh Harp — six damselflies (suborder Zygoptera) and nine dragonflies (suborder Anisoptera). All are listed below, with an indication of their status and the time of year when they are most likely to be seen.

  1. Banded Demoiselle Calopteryx splendens
    Very rare (only three records). Mid-May to early September.
  2. Azure Damselfly Coenagrion puella
    Widespread. Common breeder. Late May to late August.
  3. Common Blue Damselfly Enallagma cyathigerum
    Widespread. Very common breeder. Late May to September.
  4. Small Red-eyed Damselfly Erythromma viridulum

    Very rare (unknown in the UK before 1999).  The only record is of 12–15 in the northern reservoir in August 2007.
  5. Blue-tailed Damselfly Ischnura elegans
    Common breeder. Late May to late August.
  6. Large Red Damselfly Pyrrhosoma nymphula
    Previously very rare but becoming more common. Late May to early June.
  7. Southern Hawker Aeshna cyanea
    Scarce but annual. Breeds in very small numbers. June to early October.
  8. Brown Hawker Aeshna grandis
    Regular breeder in small numbers. June to early October.
  9. Migrant Hawker Aeshna mixta
    Common and widespread breeder. Late July to October.
  10. Emperor Anax imperator
    Widespread regular breeder in small numbers. Late May to late August.
  11. Broad-bodied Chaser Libellula depressa
    Regular breeder in small numbers. Late May to early August.
  12. Black-tailed Skimmer Orthetrum cancellatum
    Recent colonist. Regular breeder in small numbers. July to August.
  13. Red-veined Darter Sympetrum fonscolombei
    The only record for this species is a male seen on 24 May 2009.
  14. Ruddy Darter Sympetrum sanguineum
    Localised. Possibly a regular breeder. Early July to October.
  15. Common Darter Sympetrum striolatum
    Widespread, common breeder. Late June to October

References
Beddard R. (2002) “Damselflies and Dragonflies (Odonata)”, in Birds of Brent Reservoir: The Natural History of the Welsh Harp (eds L. Batten, R. Beddard, J. Colmans, A. Self). London: Welsh Harp Conservation Group.

© Welsh Harp Conservation Group 2017
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