3. Hyorrhynchus birmanus Eggers

(Figs 5–6)

Hyorrhynchus birmanus Eggers, 1939a: 1 .

Thai distribution: N: Mae Hong Son (Beaver & Gebhardt 2004), Chiang Mai.

New records: Chiang Mai, Doi Inthanon NP, summit marsh, 18° 35.361' N, 98° 29.157' E, 2500 m, MT, 2–8.vii., 6–13.ix.2006 (Y. Areeluck) (4) ; as previous except: checkpoint 2, 18° 31.559' N, 98° 29.941' E, 1700 m, 22.vii–2.viii.2006 (1).

Other distribution: Myanmar. (2)

Taxonomy: As noted by Beaver and Gebhardt (2004), Hyorrhynchus tuberopectus Huang & Yin is likely to be a synonym, but type material of that species is not currently available for examination.

Biology: Not described. The gallery system is probably similar to that of Pseudohyorrhynchus wadai Murayama (Beaver & Gebhardt 2004), with a radial gallery leading to longitudinal branches up and down the stem in which the larvae feed on ambrosia fungus growing on the walls.