28. Ambrosiophilus cristatulus (Schedl) n. comb.

(Figs 13–14)

Xyleborus cristatulus Schedl, 1953a: 300 .

Ambrosiodmus cristatulus (Schedl): Wood & Bright, 1992: 672.

Thai distribution: (unspecified southern province) (Sittichaya et al. 2012 as Ambrosiophillus [sic] cristatulus); S: Chumphon

New record: Chumphon, Sawi distr., 10° 17' 56.5'' N, 99° 01' 52.7'' E, 95 m, durian plantation, EtOH trap, 1.xii.2009, 1.ii.2010 (W. Sittichaya) (2) .

Other distribution: Malaysia (W.). The species also occurs in East Malaysia (Sabah) (R. A. Beaver, unpublished record). (3)

Taxonomy: This species is listed under Ambrosiodmus by Wood and Bright (1992), but has the morphological characters of Ambrosiophilus Hulcr & Cognato (Hulcr & Cognato 2009), and is therefore transferred to that genus.

Biology: Browne (1961a) notes that no hosts have been identified, but the beetle breeds in small stems (2–3 cm diameter), and the gallery system branches irregularly in three dimensions. Some species in this genus are mycocleptic (Hulcr & Cognato 2009), that is they parasitise the fungal ‘gardens’ of other ambrosia beetles, but the associations of the species in Thailand have not been studied.