Monday, April 7, 2014

164. Phaenandrogomphus sp. (possibly P. asthenes Lieftinck, 1964)

Number: 164 
Family:  Gomphidae
Genus: Phaenandrogomphus
Species: Phaenandrogomphus sp. (possibly P. asthenes Lieftinck, 1964)
Common name(s):N/A
Synonyms: N/A 
Habitat: Exposed area of upland forested streams 
 Province(s) sighted: Khao Soi Dao waterfall
Sightings (by me): Common at this location 
In flight (that I have seen): April (2014) 
Species easily confused with: N/A

An extremely nice surprise was to see a newly emerged Gomphid. I was even fortunate enough to see it fill out, though I wish I'd arrived 15 minutes earlier to see the complete emergence. Still, I am happy to see yet another species for my personal list. It is clearly of the genus Phaenandrogomphus. However, it is too difficult to tell at this stage which exact species. Research points towards Phaenandrogomphus asthenes Lieftinck, 1964. However, the epipoct (lower appendage) seems too straight. This could be simply because it had just emerged. Unfortunately, I will probably never know, unless someone has witnessed an emergence of the same species. So, for the time being, I will leave it as Phaenandrogomphus sp.

The male.
With enormous accessory genitalia, it is clearly Phaenandrogomphus sp. However, lacking thoracic markings and colour, it is too difficult to be sure. 

 Now fully extended (and turned ready for his maiden flight high up into the trees).

His appendages ...

and his 'massive' accessory genitalia ... any dad would be proud haha

 ... and his old home.

If anyone can ID the species I will owe you one. 

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