Checklist of Odonata of Sidi Bel Abbes, Northwest Algeria

The odonates of Algeria have been studied for more than a century and half, but the Northwestern part country has historically received little attention. A recent study in central North reported species new to country, suggesting that investigations unexplored areas are necessary fully understand local odonatofauna. We assemblages 23 sites Sidi Bel Abbes (Northwest Algeria) by bimonthly recording adults across 200 m-transect from May August 2019–2022. Our sampling yielded 29 (13 damselflies 16 dragonflies) belonging 19 genera seven families. recorded locality regionally endangered Coenagrion mercuriale, expanding western range limit Algeria. documented occurrence Selysiothemis nigra, recently become frequent Africa. Ischnura pumilio Onychogomphus forcipatus unguiculatus, which relatively rare region, were also recorded. arid-dwelling Trithemis kirbyi Mediterranean endemic Orthetrum nitidinerve quite common area. This fills an important gap knowledge our understanding odonate geographic distribution