Taxonomic history

Xyleborus yunnanensis Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 382.


2.7−2.75 mm long (mean = 2.73 mm; n = 3); 3.06−3.17 times as long as wide. This species is distinguished by the declivital interstriae 1 widened from base to midpoint of declivity, then narrowed to apex; declivital striae not impressed; three strong spines on declivital interstriae 1, and 3 slightly weaker spines on declivital interstria 3, declivital interstria 2 with at most a small spine near top of declivity; all interstriae with spines only, lacking granules; discal interstriae much wider than striae, strial punctures about twice the diameter of interstrial punctures, the latter very sparse on disc; posterolateral margin of declivity costate and with a row of small spines to interstriae 6; and integument smooth and strongly shining on both dorsal and ventral surfaces, only the head reticulate and less shiny.

May be confused with

Xyleborus pfeilii and Xyleborus mysticulus


China (Yunnan)

Host plants

unknown (Smith et al. 2020b)

DNA data

specimens not available for sequencing