Tuesday, March 31, 2026

242: Lamelligomphus sp. [nec. risi (Fraser, 1922)]

               Number: 242 / Family: Gomphidae / Genus: Lamelligomphus
Species: Lamelligomphus sp. [nec. risi (Fraser, 1922)] / -
Province(s) sighted: Chaing Mai, Udon Thani
Habitat: Forested Streams 
In flight: July / Sightings (by me): Rare
Species easily confused with: N/A

On my last trip to Chiang Mai with Noppadon Mabun, he took me to a lovely shallow but rocky stream that had a number of species, many common, but one or two fantastic finds. One of which, turns out to be Lamelligomphus sp. It is potentially a new species and looks identical to the one I saw in Udon Thani, but for now it will be placed as Lamelligomphus sp. [nec. risi (Fraser, 1922)], as there are a lot of similarities such as prominent yellow appendages and subtle differences in the markings. Hopefully, it will be resolved soon and it could turn out to be something new. For now, the exact location will not be revealed.

The Male
On the surface, this looks like a somewhat standard gomphid... until you look at those appendages, that is! Wow... they are enormous and black and yellow, curving to make a perfect circle. With a weapon like that, maybe the female is a total battle axe! 


Hopefully I can return one day and locate the feemale.

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