Number: 139 / Family: Gomphidae / Genus: Nepogomphus
Species: Nepogomphus walli
Common name(s): N/A
Habitat: Exposed but tree-lined streams
Province(s) sighted: Petchabun, Chiang Mai, Nan, Narathiwat
In flight: July-August / Sightings (by me): Uncommon
In flight: July-August / Sightings (by me): Uncommon
Just as I was cursing that last dragonfly flying away, another new species landed right in front of me on the tall reeds.
Again... one shot, it was off, high up into the trees. Still, at least this shot is pretty good and should be good enough for ID.
Finally, this has now been looked identified as Nepogomphus walli, through the expert eyes of Noppadon Makbun and Tom Kompier. With thanks. Since then I have seen this species on several occasions throughout Thailand
The Male
Can be easily identified through its rather gruesome yellow and black appendages and unique markings, especially the large yellow streak towards the end of the abdomen.
The 'Teneral' Male
This male was spotted early one morning at the main river that runs through Hala-Bala Wildlife Sanctuary, in Narathiwat, August 2025.
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The Female
The female is similar to the male and often found close by.
It seems to be in genus Onychogomphus. This reminds me of O. duaricus.
ReplyDeleteDennis, judging from the broad base of the superiors, this looks more like Nepogomphus.
ReplyDeleteHow to differentiate between the Nepogomphus walli and Onychogomphus duaricus by photo? Both species looks almost similar
ReplyDeleteI agree ... very difficult. However, as Tom Kompier pointed out N. walli has a broad base for it superior appendages. I have also noticed that the s. appendages of N. walli are also yellowish in colour ... other than that it is very difficult.
DeleteHope this helps.
Dennis
I agree ... very difficult. However, as Tom Kompier pointed out N. walli has a broad base for it superior appendages. I have also noticed that the s. appendages of N. walli are also yellowish in colour ... other than that it is very difficult.
DeleteHope this helps.
Dennis