Blue Marsh Hawk (Orthetrum glaucum) lives in freshwater lakes across Sub-Saharan Africa. It feeds on insects and larvae. Its conservation status is Least Concern.
Fascinating facts about the Blue Marsh Hawk
- Old male blue marsh hawks are medium-sized dragonflies whose thorax turns a deep dark blue as they reach maturity due to pruinescence. The dark blue contrasts with their dark face and greenish-blue eyes, while younger males and females retain a golden abdomen.
- The wings of the blue marsh hawk are completely transparent apart from a subtle shading at their very base. That extreme base bears a dark amber-yellow tint, creating a faint coloured band that does not extend beyond the wing's root. The remainder of each wing remains clear, allowing the dragonfly to glide effortlessly over marshes and forest streams where it breeds. This limited amber-yellow shading is a distinctive field mark for the species.
- The abdomen of the blue marsh hawk is covered in a pruinosed blue colour from the first segment through segment eight, giving the insect a glossy, icy appearance along most of its length. The final two segments, however, are solid black, producing a stark colour break at the tail end. This pattern is consistent in mature individuals and contrasts with the golden abdomen of females and juvenile males.
- Females and juvenile males have a golden abdomen that is accented by brown stripes running along the sides of the thorax. This colour pattern distinguishes them from mature males, whose abdomen is blue. They can be further separated from each other by the shape of the final abdominal segment. Both sexes breed in marshes linked to forest streams, plantations and canals, where they are regularly observed.
- The blue marsh hawk is an Asian dragonfly that occurs across much of tropical and subtropical Asia and is described as common throughout this range. The species is typically found near marshes, forest streams, plantations and canals, habitats that provide the water bodies it needs for breeding.
Sources
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At a glance
RangeSub-Saharan Africa
HabitatFreshwater lakes
DietInsects and larvae
About the Blue Marsh Hawk
As the Blue Marsh Hawk dances across the sun-drenched wetlands, its iridescent blue body glimmers like a fragment of sky, its delicate wings beating in a hypnotic rhythm that belies the predator's deadly precision. With each fluid stroke, it weaves a intricate path through the reeds, its large, piercing eyes scanning the landscape for the slightest whisper of movement, ever vigilant for the next unsuspecting meal. In this realm of shimmering light and shadow, the Blue Marsh Hawk reigns supreme, a master of stealth and agility, its very existence a testament to the enduring beauty of the natural world.
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