Taxonomic history

Cryptoxyleborus confusus Browne, 1950: 644.

Diagnosis

2.0 mm long (n = 1); 3.3 times as long as wide (Sittichaya et al. 2019). This species can be distinguished by its small size; elytral pit mycangia absent; antennal funicle 3-segmented; elytral interstriae reticulatepunctate, punctures confused and very densely placed at the base of the disc.

May be confused with

Cryptoxyleborus percuneolus and Fraudatrix simplex

Distribution

Brunei Darussalam, East & West Malaysia, Indonesia (Sumatra), Thailand

Host plants

only recorded from Shorea (Dipterocarpaceae) (Browne 1961b, Beaver and Hulcr 2008)

Remarks

Browne (1961b) notes that the gallery system differs from the usual pattern found in Cryptoxyleborus. In this species a surface brood chamber is excavated between bark and wood in which most of the larvae develop. However, there are also more deeply penetrating tunnels into the wood. Brood sizes ranged from 18-39 (Browne 1961b).

DNA data

specimens not available for sequencing