Orthogonius nahaeo Tian & Deuve, 2006

Material examined.

3 males, "Thailand: Ubon Ratchathani: Pha Taem NP, wild flower field, 15°27.336'N, 105°34.87'E, 232 m, 2-9.v.2007, Malaise trap, Sorawit Mingman leg., T2186"; 1 male, "Thailand: Phetchabun: Thung Salaeng Luang NP, Gang Wang Nam Yen, 16°36.587'N, 100°53.395'E, 753 m, 31.v.2007-7.vi.2007, Malaise trap, Pongpitak Pranee & Sathit leg., T2086". in QSBG, MNHN and SCAU, respectively.

Remarks.

In general, members of Orthogonius nahaeo have no seta on the mentum, but in one specimen collected in sample T2186, the mentum has a short seta (compared to setae on the submentum) on the right side.

Distribution.

Thailand.