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Bornéo, Sarawak – Neurothemis fluctuans (Fabricius, 1793)

Neurothemis fluctuans est un des trois Neurothemis au Sarawak. Il se différencie de N. ramburii et de N. terminata par sa petite taille, 22 à 25 mm (1), ses marques abdominales et sa nervation.Ces détails sont mis en évidence ci-dessous :– le nombre de cellules dans le triangle de l’aile antérieure est faible (cercle jaune), […]

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Cannibalism in Blue-tailed damselfly (Ischnura elegans)

Cannibalism in Blue-tailed damselfly is curiously an almost common occurrence among cases of cannibalism in Odonata; in fact, this species represents to date 20% of the cases of cannibalism documented in Zygoptera! This observation is the twenty-third.This remains of course a rare phenomenon and I undertook a long research on this subject in which I attempted to list all

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Predation of Downy emerald by Emperor dragonfly

Cases of predation by Anax imperator (Emperor Dragonfly) on Zygoptera or Anisoptera are regularly reported. A few years ago, I observed a male Anax imperator capturing an Orthetrum albistylum, but it managed to escape. This will not be the case for this female Cordulia aenea (Downy emerald). This May 20, 2025, at the very beginning

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Bornéo – Libellago stictica (Selys, 1869) – English version

Selys first described Libellago stictica male (Chlorocyphidae) as a supposed race of Micromerus stigmatizans, 1859 (1), then as Micromerus sticticus in 1869 (2). The genus Micromerus is now extinct. It was MA Lieftinck who in this document (3), and adhering to Fraser’s proposal, united all of Selys’ Micromerus in the genus Libellago.And Selys was not mistaken, Libellago

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