Taxonomic history

Tomicus shoreae Stebbing, 1907: 39.

Xyleborus shoreae (Stebbing): Hulcr, 2010: 109 (as synonym of D. fallax (Eichhoff)).

Debus shoreae (Stebbing): Beaver et al., 2014: 44.


Tomicus assamensis Stebbing, 1909: 17. Beeson, 1930: 259.


3.0−3.8 mm long (mean = 3.34 mm; n = 5); 2.92− 3.17 times as long as wide. This species is distinguished by the posterolateral extensions of elytra short, less than the width of apical emargination and declivity shallowly excavated; and elytral declivity impunctate except for a single row of punctures running from the upper margin to the inner margin of the second declivital spine and thence to the apical emargination.

This species is very similar to D. emarginatus and can be distinguished by the puncturation of the elytral declivity.

May be confused with

Debus emarginatus and D. quadrispinus


China (Guangxi, Sichuan), India (Arunachal Pradesh, Assam, Uttarakhand, Uttar Pradesh, West Bengal), Indonesia (Java, Sumatra), Laos, East Malaysia, Myanmar, Nepal, New Guinea, Thailand, Vietnam

Host plants

polyphagous, possibly with a preference for Dipterocarpaceae (Beaver et al. 2014)

DNA data

Sequences available for COI and CAD.

COI: MN619904

CAD: MN620186