No: 53 / Family: Libellulidae / Genus: Orthetrum
Name: Orthetrum t. triangulare / Blue-tailed Forest Hawk
Habitat: Exposed Ponds & Seepage, Sorested streams and Rivers (Uplands)
Province(s): Widespread (except the deep south)
In flight: March-December / Sightings (by me): Locally common
Province(s): Widespread (except the deep south)
In flight: March-December / Sightings (by me): Locally common
Easily confused with: Orthetrum t. malaccensis
The sixth species of Orthetrum I have added to the blog (and the last I have spotted so far) is Orthetrum triangulare triangulare, commonly known a the Blue-tailed Forest Hawk. I am still looking for several species of Orthetrum in Thailand. I have seen this at a number of upland streams and rivers, especially in Chiang Mai, Phu Kradeung National Park and Nam Nao environs. The tend to live alongside other Orthetrum species and tend to like hot, sunny weather. You can see this species pretty easily around the country.
The Male
The male is easy to recognise as it has a large blue section to the abdomen and the rest of it is completely black. They like to hang right over the water's edge on branches and twigs.
A Copula
I saw this copula at Phu Luang Wildlife Santuary, Loei, is 2022 and it just landed on the road.
Dennis, I love your blog. It has been a great, fun resource for helping me identify dragonflies in Asia. Maybe you have seen more by now but if you haven't, I found some images of a female that I captured and took some photos of. They are here http://www.inaturalist.org/observations/3157881. Hope they are of some use!!
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