Pseudowebbia trepanicauda

Taxonomic history

Xyleborus trepanicauda Eggers, 1923: 170.

Pseudowebbia trepanicauda (Eggers): Browne, 1961a: 308.

Diagnosis

2.2−3.1 mm long (mean = 2.51 mm; n = 6); 2.4−3.1 times as long as wide. This species is distinguished by the lack of a scutellumscutellum:
a shield-like sclerotized plate located at the midpoint of the elytral base 
; 1−3 moderately sized denticlesdenticle:
a small tooth, the sides of which are equal and the tip is above the middle of the base
on declivitaldeclivital:
pertaining to the elytral declivity
interstriae 2; and pronotumpronotum:
the dorsal surface of the thorax
anterioranterior:
the front or forward; opposite of posterior
margin basic, short, rounded and parallel-sided when viewed dorsally (type 2, Hulcr et al. 2007Hulcr et al. 2007:
Hulcr J, Dole SA, Beaver RA, Cognato AI. 2007. Cladistic review of generic taxonomic characters in Xyleborini (Coleoptera: Curculionidae: Scolytinae). Systematic Entomology 32: 568-584. https://doi.org/10.1111/j.1365-3113.2007.00386.x).

May be confused with

Arixyleborus, truncatetruncate:
appearing cut off or suddenly shortened
Cyclorhipidion species, Truncaudum, Webbia

Distribution

‘Borneo’, Brunei, China (Yunnan), Indonesia (Sumatra), East Malaysia, Thailand, Vietnam

Host plants

recorded only from Vatica (Dipterocarpaceae) (Browne 1961aBrowne 1961a:
Browne FG. 1961a. Borer beetles from Bako National Park (Sarawak). Sarawak Museum Journal 10: 300-318.)

Remarks

The number of tuberclestubercle:
a small knob-like or rounded protuberance of the exoskeleton
on the elytralelytral:
pertaining to the elytra
declivitydeclivity:
downward slope of either the pronotum or elytra
can be very variable.

DNA data

Sequences available for COI and CAD.

COI: OP617810

CAD: OP607246