Aciagrion occidentale Laidlaw, 1919

Sharma, Manoj, Oli, Buddhi Ram & Gautam, Ishan, 2024, Dragonflies and Damselflies (Insecta, Odonata) from the western region of Nepal with new records of four species, Journal of Insect Biodiversity and Systematics 10 (3), pp. 535-546 : 541

Aciagrion occidentale Laidlaw, 1919 (Fig. 25)

Material Examined. 1♀, Karnali province, Surkhet district, Bulbule lake (28°34'56.14"N, 81°37'10.38"E, 646 m a.s.l.), 3-viii-2022 ; 3♀♀, Karnali province, Surkhet district, Baluwa Sangrahi (28°27'28.65"N, 82°00' 4.36"E, 544 m a.s.l.), 7-viii-2022. Coll. M. Sharma.

Field diagnosis (♀). Thorax pale yellow to bluish antehumeral stripes. Abdomen slender, with segments 1–7 black dorsally, and segments 8–10 blue, with a black triangle on the dorsum of segment 8 (Fig. 25).

Ecology. A single female was seen in the Lake’s marshes. Later, three females were observed perching in paddy near the fast-flowing river in August 2022.

Distribution. Bangladesh, Cambodia, India, Sri Lanka, Thailand, Vietnam ( Mitra, 2010; Kalkman et al., 2020), and Nepal (new record).