Arixyleborus setosus

Taxonomic history

Arixyleborus setosus Smith, Beaver & Cognato 2020 (in Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630): 130.

Diagnosis

2.50mm long (n = 2); 2.5 times as long as wide. This species is distinguished by the protibiaprotibia:
tibia of the first pair of legs
posteriorposterior:
toward the rear end; opposite of anterior
face flat and unarmed; antennalantennal:
pertaining to the antennae
club as broad as tall; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
oblique, granulategranulate:
pertaining to a coarse, grainy surface texture
; elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
flat, without a transverse depression; elytralelytral:
pertaining to the elytra
striae moderately impressedimpressed:
a depression in a surface
on discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
; elytralelytral:
pertaining to the elytra
interstriae with two rows of granulesgranule:
a small rounded protuberance, like grains of sand
and long semi-recumbentsemi-recumbent:
pertaining to setae that are in between erect and recumbent, usually at a 45 degree angle
fine hair-like setaeseta:
small hair-like or scale-like structure
on discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
, setaeseta:
small hair-like or scale-like structure
1−1.5 times the width of an interstriainterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
; and declivitaldeclivital:
pertaining to the elytral declivity
interstriae densely covered by 2−3 rows of dense, confusedconfused:
of markings, having indefinite outlines or running together as lines or spots without definite pattern; usually referring to punctures
golden scalesscale:
a flattened seta
.

May be confused with

Arixyleborus rugosipes

Distribution

Vietnam

Host plants

unknown (Smith et al. 2020bSmith et al. 2020b:
Smith SM, Beaver RA, and Cognato AI. 2020b. A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China. ZooKeys 983: 1-442. https://doi.org/10.3897/zookeys.983.52630)

DNA data

Sequences available for COI and CAD.

COI: MN619863

CAD: MN620153