Friday, September 27, 2013

Long-legged Fly of Genus Neurigona, Dolichopodidae

Neurigona sp
Neurigona sp (unverified)
Several of these flies were spotted on a mid-sized tree trunk at the foot hill of Bukit Larut (formerly known as Maxwell Hill), Perak, Malaysia. The tree bark seemed whitish and powdery. The body length of the fly is about 4 or 5 mm, maybe smaller. It had been observed to prey on smaller insects, where a smaller insect is sucked up on its mouth.

Neurigona sp
Neurigona sp, male (dorsal), unverified
The overall appearance also look like Sciapus sp; however, the wing shows that it is not.

Neugona sp
Neurigona sp, male
In the above picture, note the bristled foretarsus and visible genitalia, are distinctive features of a male Neurigona sp.

Neurigona sp
Neurigona sp, female
The ovipositor is a feature of the female. Female Neurigona sp lay eggs in the tree bark.


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