Palmiet Sprite, Pseudagrion furcigerum, Palmietgesie.
Short description:
Palmiet Sprite, Pseudagrion furcigerum, Palmietgesie is small slate blue damselfly that is pruinosed on thorax, abdomen and forehead.
Family Coenagrionidae Kirby, 1890
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Key identification features:
Male
- Face blueish white pruinosed with green labrum. Postocular spots have no truly pigmented ocular spots, but dumb-bell shaped pruinescent spots connected with pruinescent line.
- Eyes green with blackish grey cap.
- Black dorsal stripes on thorax with blue antihumeral stripe and a broad humeral (lateral) black stripe on either side of thorax.
- Thorax below is white or heavily pruinescent.
- Wings with dark brown pterostigmas.
- Abdomen segment 1-3 are whitish pruinescence, s4 – S7 are blackish blue with black rings between segments and white underneath. s8-10 pruinescent whitish blue.
- Superior appendages has a distinct hook in side view and are wide with a small black inward-projecting tooth on the upper clasper.
Female
- Brightly coloured like the male.
- Can be buff, or bright bluish green or orange to rufous brown with dark humeral stripes.
- Rufus orange when young, but becomes distinctly blue when older.
Habitat:
- Mostly streams, but also rivers and headwaters, in open landscapes. Usually with emergent vegetation, such as palmiet, often rocks, and/or probably submerged roots
- Inferred to occur from 0 to 1400 m above sea level, but mostly below 800.
Behaviour:
- Perch on reed blades or flat stones. Not very active.
- Female perches with the male on the stones in the midstream.
Compared with other species:
- Pseudagrion furcigerum and Pseudagrion kersteni are the only species with striped thorax that are pale pruinescent.
- P. furcigerum has a green labrum and the bigger P. kersteni has a black labrum.
- P. furcigerum has a wider thoracic lateral, black stripe.
- P. kersteni has very bright blue postocular spots - P. furcigerum has pruinescent spots.
- P. furcigerum has a distinct basal tooth on the superior appendages.
Learn more about species in Sprite A-group
- B-Group
- To view a list of B-Group Sprite images Click HERE
Distribution
South Africa
- Endemic to south Africa
- Restricted to the Southern Cape.
Further reading:
Website of interest::
African Dragonflies & Damselflies Online
A Visual Guide to the Damselflies and Dragonflies of South Africa
Odonata Atlas of Africa VMU Number 663350
The IUCN red List of Threatened Species. Least Concern