Xyleborus insidiosus

Taxonomic history

Xyleborus insidiosus Cognato and Smith, 2019 (in Cognato et al. 2019Cognato et al. 2019:
Cognato AI, Smith SM, Li Y, Pham T-H, Hulcr J. 2019. Genetic variability among native Xyleborus glabratus Eichhoff populations and the description of two related species. Journal of Economic Entomology 112: 1274-1284. https://doi.org/10.1093/jee/toz026): 1280.

Diagnosis

2.7−2.8 mm long (mean = 2.74 mm; n = 5); 3.0−3.5 times as long as wide. This species is distinguished by declivitaldeclivital:
pertaining to the elytral declivity
interstriae 1 laterally broadened from basebase:
point or edge closest to the body; opposite of apex
to declivitaldeclivital:
pertaining to the elytral declivity
midpoint then narrowing towards apexapex:
point or edge furthest from the body; opposite of base
; large body size; broad discaldiscal:
pertaining to the disc of either the pronotum or elytra
interstriae, four times the width of discaldiscal:
pertaining to the disc of either the pronotum or elytra
striae; discaldiscal:
pertaining to the disc of either the pronotum or elytra
strial punctures three times the diameter of those of interstriae; declivitaldeclivital:
pertaining to the elytral declivity
striae and interstriaeinterstria:
'longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
clearly distinguishable, striaestria:
punctures in rows, which may or may not be impressed to make grooves
clearly impressedimpressed:
'a depression in a surface
; interstriaeinterstria:
'longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
uniformly granulategranulate:
'pertaining to a coarse, grainy surface texture'
, never denticulatedenticulate:
covered in denticles
; anterioranterior:
the front or forward; opposite of posterior
half of pronotumpronotum:
'the dorsal surface of the thorax
strongly shagreenedshagreened:
covered with a closely-set roughness, like shark skin'
; and posterolateralposterolateral:
'relating to end of the side part/portion
margin of declivitydeclivity:
downward slope of either the pronotum or elytra
carinate to interstriaeinterstria:
'longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
6.

May be confused with

Xyleborus aquilus, X. glabratus, X. monographus, X. mysticulus

Distribution

China (Sichuan), Vietnam

Host plants

This species has been collected from Fagaceae as well as unidentified punky wood (Cognato et al., 2019).

Remarks

Specimens of Xylebrous insidiosus were collected together with X. glabratus at two collection events in northern Vietnam.

DNA data

Sequences available for COI and CAD.

COI: MK251508.1

CAD: MK251526.1