| Also known as: | banded agrion |
|---|---|
| French: | Caloptéryx Éclatant |
| Kingdom | Animalia |
|---|---|
| Phylum | Arthropoda |
| Class | Insecta |
| Order | Odonata |
| Family | Agriidae |
| Genus | Calopteryx (1) |
| Size | Male- hind wing: 27-32 mm (2) Female- length of abdomen: 33-40 mm (2) Male- length of abdomen: 33-39 mm (2) Female- hind wing: 31-36 mm (2) |
The banded demoiselle (Calopteryx splendens) has the same style of butterfly-like flitting flight as that of the beautiful demoiselle (C. virgo) (3). Males have a metallic bluish-green body with a central band of blackish-blue pigment on the wings. The females are metallic green and lack the band on the wings (3). Males of this species can be distinguished from those of the similar species, the beautiful demoiselle, as the pigmentation on the wing forms a distinct band, whereas in the latter species this is broader and more extensive, covering much of the wing (4).
The banded demoiselle inhabits slow-moving rivers, ponds and other still water-bodies (2).
The larvae occur amongst roots or aquatic plants. They are active mainly at night, and like other damselfly larvae are active predators. Larval development takes around two years, and they overwinter twice in the mud at the bottom of the river or pond (3). Larvae often travel for up to 100 metres out of water before the adult emergence occurs, typically in a shrub or tree (3). The flight period of banded demoiselle adults is between May and the end of September (2). They take seven to ten days to mature following emergence, after which time they fly to breeding sites. Banded demoiselle males hold territories around suitable egg-laying sites amongst vegetation that protrudes from the water, or they perch on vegetation at the riverside (4). Whilst the territory-holding males actively court females with a fluttering display flight (3), perching males try to mate with any female that passes by (4). Occasionally, males will fight over a territory, engaging in contest of a series of stereotypical flights for hours (3). After mating, females oviposit alone, often placing the eggs into the tissues of submerged vegetation (4). The eggs take around 14 days to hatch (3).
The banded demoiselle is not threatened.
Conservation action is not required for the banded demoiselle (4).
Learn more about the banded demoiselle:
For more information on dragonflies and damselflies:
For more on invertebrates and their conservation:
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