Common Blue Damselfly - Enallagma cyathigerum

Photos

Various photos of Common Blue Damselfly - Enallagma cyathigerum, the female has several colour forms that can make identification more difficult.

  • Common Blue Damselfly - Enallagma cyathigerum: CRW 3225
    Drab form female, Kempston
  • Common Blue Damselfly - Enallagma cyathigerum: CRW 3234
    Immature male, Kempston. Immature males are a paler blue than mature specimens.
  • Common Blue Damselfly - Enallagma cyathigerum: CRW 3242
    Immature male, Kempston. Immature males are a paler blue than mature specimens.
  • Common Blue Damselfly - Enallagma cyathigerum: CRW 3405
    Mature drab form female, Kempston
  • Common Blue Damselfly - Enallagma cyathigerum: CRW 3414
    Drab form female, Kempston
  • Common Blue Damselfly - Enallagma cyathigerum: A3P1705
    Pair "in cop" at Felmersham NR
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2011
    Pair ovipositing at Felmersham NR. The female is the greenish drab form.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2184
    Male flying over the River Great Ouse near the Biddenham Country Walk.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2221
    A mature male at Felmersham NR, the mature male is a more intense blue than the immature male.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2222
    A mature male at Felmersham NR.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2227
    Immature drab form female, Felmersham NR
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2229
    Mature male, feeding at Felmersham NR
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2242
    Mass breeding at Felmersham NR. Both blue and drab forms of the female are seen.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2248
    Pairs "in cop" at Felmersham NR. Blue form female on the left, and drab form on the right.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2275
    Pair "in cop" at Felmersham NR, drab form female.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2302
    Male meeting a grisly end, caught by a polymorphic spider, Enoplognatha ovata.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2304
    Male meeting a grisly end, caught by a polymorphic spider, Enoplognatha ovata.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2326
    Male, flexing its abdomen as part of it's cleaning routine, River Great Ouse at Kempston Church End.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2327
    Same male as previous picture, back in the normal posture, River Great Ouse at Kempston Church End.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2355
    Male, Felmersham NR.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2356
    Pair in tandem, blue form female, Felmersham NR.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2364
    Mature male at Felmersham NR.
  • Common Blue Damselfly - Enallagma cyathigerum: A3P2406
    Pair in tandem, drab form female, Felmersham NR.
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Main features

Classification:

Odonata        
Zygoptera     Damselflies
  Coenagrionidae   Blue or red damselflies

Similar to most of the other blue damselflies. Males feature a "lollipop" or mushroom shaped marking on segment 2, that and the plain sides to the thorax are the best way to identify them.

Segments 8 and 9 are entirely blue in males, with blue and black markings along the rest of the abdomen.

Females exist in 3 different colour forms, 2 are drab coloured and the other blue. All females have black marking on segments 8 and 9. Females have a spine on the underside of segment 8.

Habitat

Large ponds, lakes, gravel pits and slow rivers, with submerged vegetation used as ovipositing sites. Frequents vegetation away from water when not breeding.

Where to see

Very common throughout the county, looking out over large bodies of water, such as those at Felmersham NR or Priory CP, they form a moving blue haze as huge numbers of them hover over the water in search of ovipositing sites.

Visible between mid May and early October.