Taxonomic history

Xyleborus percuneoulus Schedl, 1951a: 85.

Xyleborinus percuneolus (Schedl): Wood & Bright, 1992: 809.

Cryptoxyleborus percuneolus (Schedl): Beaver & Hulcr, 2008: 145.

Diagnosis

1.4 mm long (n = 1); 2.55 times as long as wide (Sittichaya et al. 2019). This species can be distinguished by its minute size; elytral pit mycangia absent; antennal funicle 3-segmented; elytral interstriae distinctly seriate punctate, without very densely placed punctures at the base.

May be confused with

Cryptoxyleborus confusus and Fraudatrix simplex

Distribution

Indonesia (Java), Malaysia (Sabah), Thailand

Host plants

No host records are known, but hosts are presumably similar to other Cryptoxyleborus which are specific to Dipterocarpaceae (Beaver and Hulcr 2008).

Remarks

One gallery system investigated consisted of an unbranched entrance tunnel leading to a single terminal brood chamber enlarged in the longitudinal plane, with multiple tunnels extending further into the wood (Beaver and Hulcr 2008).

DNA data

Sequences available for COI and CAD.

COI: HM064074

CAD: HM064253