85. Diuncus corpulentus (Eggers)

Xyleborus corpulentus Eggers, 1930: 198 .

Diuncus corpulentus (Eggers): Hulcr & Cognato 2009: 30.

Thai distribution: C: Chanthaburi, Phetchaburi; N: Chiang Mai (Hulcr & Cognato 2009), Kamphaeng Phet, Phitsanulok; S: Surat Thani.

New records: Chanthaburi, Khao Khitchakut NP, 500 m N/ Prabaht Unit, 12° 48.98' N, 102° 9.14' E, 12 m, MT, 1–8.ix.2008 (Suthida & Charoenchai) (1) ; as previous except: 50 m NE/ Prabaht Unit, 12° 48.779' N, 102° 9.181' E, 107 m, MT, 7–28.vii.2008 (3) ; Chiang Mai, Fang prov., 8 km E Doi Anh Kang, over a rocky brook, 2.xi.2004 (M. Földväri, A. Ordiz) (2) ; Kamphaeng Phet, Mae Wong NP, Chong Yen, 16° 5.212' N, 99° 6.576' E, 1306 m, MT, 8–15.x.2007 (Piluek C. & Inpuang A.) (1) ; Phetchaburi, Kaeng Krachan NP, Pa La-U/ bus parking, 12° 32.125' N, 99° 28.283' E, MT, 28.vi.–4.vii., 18–25.vii.2008 (Akaradate & Thongbai) (4) ; Phitsanulok, Thung Salaeng Luang NP, 16° 50.217' N, 100° 52.541' E, 580 m, Dry evergreen [forest], MT, 11–18.viii.2006 (P. Pranee) (1) ; Surat Thani, Khao Sok NP, Bang Huaraed, 8° 54.555' N, 98° 30.522' E, 123 m, litter sampling, 10–15.vii.2008 (Pongphan) (1).

Other distribution: India (Andaman Is., Assam, W. Bengal), Laos, Nepal, Taiwan. (2)

Biology: Polyphagous (Beeson 1930, Maiti & Saha 2004). Hulcr and Cognato (2009) found it in association with Hadrodemius globus (Blandford) in Thailand, with the gallery systems ‘deeply intertwined’, and suggest ‘parasitic exploitation’ by D.corpulentus .

Illustrations: D (Maiti & Saha 2004 as Xyleborus corpulentus).