Xylosandrus trunculus

Taxonomic history

Xylosandrus trunculus Park & Smith 2020 (in Park et al. 2020Park et al. 2020:
Park S, Smith SM, Cognato AI, Beaver RA. 2020. Catalogue of Korean Xyleborine ambrosia beetles (Coleoptera: Curculionidae) with seven new species. Journal of Asia-Pacific Biodiversity 13: 210-228. https://doi.org/10.1016/j.japb.2020.01.002): 225.

Diagnosis

1.38−1.48 mm (mean = 1.43 mm; n = 2); 2.18 times as long as wide. This species can be distinguished by its small size; elytral declivitydeclivity:
downward slope of either the pronotum or elytra
clearly truncatetruncate:
appearing cut off or suddenly shortened
, appearing cut off; declivitaldeclivital:
pertaining to the elytral declivity
striae closely granulategranulate:
'pertaining to a coarse, grainy surface texture'
; declivitaldeclivital:
pertaining to the elytral declivity
interstriae loosely granulategranulate:
'pertaining to a coarse, grainy surface texture'
, uniseriate with minute erecterect:
'pertaining to setae that have their apices directed away from the body and appear straight
setae; pronotumpronotum:
'the dorsal surface of the thorax
as long as wide; pronotalpronotal:
'pertaining to the pronotum
basebase:
point or edge closest to the body; opposite of apex
medially triangularly emarginateemarginate:
notched at the margin
for the mycangial tuftmycangial tuft:
'tuft of setae that denotes the mycangia exterior opening
, tuft with sparse somewhat long scale-like setaeseta:
small hair-like or scale-like structure
.

May be confused with

Amasa spp., Xylosandrus amputatus, X. bellinsulanus, and X. mancus

Distribution

South Korea

Host plants

unknown

DNA data

specimens not available for sequencing