Xyleborus monographus

Taxonomic history

Bostrichus monographus Fabricius, 1792: 365.
Bostrichus tuberculosus Herbst, 1793: 113. Synonymy: Eichhoff 1878b: 397.
Xyleborus monographus (Fabricius): Eichhoff 1864: 704.

Diagnosis

3.0−3.2 mm long (mean = 3.14 mm; n = 5); 2.9−3.1 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 and then narrowing towards apexapex:
point or edge furthest from the body; opposite of base
; all declivitaldeclivital:
pertaining to the elytral declivity
interstriae armed by tuberclestubercle:
a small knob-like or rounded protuberance of the exoskeleton
at declivitaldeclivital:
pertaining to the elytral declivity
summit; interstriaeinterstria:
'longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
1 armed by two large pointed on declivitaldeclivital:
pertaining to the elytral declivity
face, declivitaldeclivital:
pertaining to the elytral declivity
interstriae 3 armed with several smaller tubercles; 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.
7.

May be confused with

Xyleborus aquilus, X. glabratus, X. insidiosus, X. mysticulus

Distribution

Only occurring in South Korea in the study region. Xyleborus monographus is a widely dsitrubuted Palearctic species, found in Africa (Algeria, Morocco), Asia (Azerbaijan, Iran, Iraq, South Korea, Turkey). Europe (Albania, Austria, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, France, Great Britain, Germany, Greece, Hungary, Italy, Latvia, Luxembourg, Macedonia, Montenegro, Netherlands Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine. It has recently become established in the United States (California) (Rabaglia et al. 2020Rabaglia et al. 2020:
Rabaglia RJ, Smith SL, Rugman-Jones P, DiGirolomo M, Ewing C, Eskalen A. 2020. Establishment of a non-native xyleborine ambrosia beetle, Xyleborus monographus (Fabricius) (Coleoptera: Curculionidae: Scolytinae), new to North America in California. Zootaxa 4786: 269-276. https://doi.org/10.11646/zootaxa.4786.2.8).

Host plants

A Fagaceae specialist, this species is most commonly collected on Quercus as well as Fagus and Castanea. Host use is discussed in great detail by Rabaglia et al. (2020).