Arixyleborus puberulus

Taxonomic history

Xyleborus puberulus Blandford, 1896b: 215.

Arixyleborus puberulus (Blandford): Browne, 1955: 351. 

Synonyms

Xyleborus hirtipennis Eggers, 1940: 146. Hulcr, 2010: 106.

Diagnosis

2.6−2.9 mm long (mean = 2.66 mm; n = 5); 2.48−2.64 times as long as wide. This species is distinguished by the protibiaprotibia:
tibia of the first pair of legs
 posterior 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 deeply 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 at least two rows of tuberclestubercle:
a small knob-like or rounded protuberance of the exoskeleton
and long erecterect:
pertaining to setae that have their apices directed away from the body and appear straight
, fine hair-like setaeseta:
small hair-like or scale-like structure
, setaeseta:
small hair-like or scale-like structure
two times the width of an interstriainterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
.

May be confused with

Arixyleborus moestus, A. scabripennis, and A. setosus

Distribution

China (Yunnan), Indonesia (Java), East Malaysia, New Guinea, Thailand, Vietnam

Host plants

recorded from three genera of Dipterocarpaceae, Canarium (Burseraceae) (Ohno 1990Ohno 1990:
Ohno S. 1990. The Scolytidae and Platypodidae (Coleoptera) from Borneo found in logs at Nagoya port 1. Research Bulletin of the Plant Protection Service, Japan 26: 83-94.), and Hevea (Euphorbiaceae) (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: HM064055.1

CAD: HM064234.1