With Gressitt's (1970) key : - Pronotum with rugulose area somewhat vague, merging with plicate area, largely limited to area each side of median line just behind center ; elyton dark green with short bright sutural stripe ; length 16-36 mm...........Chloridolum laotium Gressitt & Rondon, 1970
Close to the picture of the species determined by S. Lingafelter on his site with the wrong name of Ch.laoticum
Hallo Xavier, I agree with you. The description fits well. The shiny median line from the pronotum is a good feature and by all my Spec. (Laos, Yunnan, Vietnam and Myanmar) clearly. The key by Gressitt & Rondon is a little bit difficult. By the female from this Spec. (and from several other "Chloridolum") is the 3 antennal segment distinctly longer as the 4 segment, also by small males (but not so clearly).