Blue cascader
Introduction: Blue Cascaders (Zygonyx natalensis) are sometimes mistaken for Skimmers when over water, although the latter do not patrol for extended periods.
Distribution: Epupa and Ruacana Falls, Popa Falls and the rapids at Katima Mulilo on the Zambezi River.
Colouration: Males have a grey-blue pruinosity when on waterfall/rapid patrol. Metallic-blue frons. Black abdomen with very thin yellow lateral streaks in younger males.
Breeding: Larvae live on wood and rocks or between leaves swirling in the swift current. Emergence takes place at overhanging rocks.
Flight season: Between December and April
Max size: 50mm.
Conservation: Not threatened.
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