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 Thailand : Gyaritus auratus

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Andre Posted - 17/06/2022 : 13:52:19

Male, 7.5 mm

Male, lateral view

Female, 9.5 mm

S-Thailand, Trat Prov., Ko Kut Isl.

Yimnashana alfredi G. & V., 2016 ?
4   L A T E S T    R E P L I E S    (Newest First)
Francesco Posted - 10/09/2022 : 11:27:28
A very big difference is the shape of the hind wings.
As I have written to Larry, there is the possibility that the Yimnashana are actually altitudinal Gyaritus; therefore, Yimnashana might not be a true genus but a group of subspecies characterised by reduced hind wings.
Xavier Posted - 07/09/2022 : 15:57:07

348.25 KB

Gyaritus auratus Breuning, 1963 has two small lateral and visible spines on the pronotum, like your specimen. Yimnashana alfredi Gouverneur & F. Vitali, 2016 (here a paratype) has two minimal lateral spines on the pronotum, barely visible, and less elongated elytra.
Xavier Posted - 06/09/2022 : 21:20:35
Sorry, G.quadridentatus has different spines.
Your specimen, with dark pattern is probably Gyaritus auratus Breuning, 1963. I will post some specimens from north Laos this week.
Xavier Posted - 17/06/2022 : 18:18:31
Check also Gyaritus quadridentatus (Pic, 1936), but the holotype seems to me a little immature.
Trat is not in "south" Thailand .

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