Xyleborinus echinopterus


  Xyleborinus echinopterus  holotype lateral; R.K. Osborn

Xyleborinus echinopterus holotype lateral; R.K. Osborn


  Xyleborinus echinopterus  dorsal; R.K. Osborn

Xyleborinus echinopterus dorsal; R.K. Osborn


  Xyleborinus echinopterus  holotype declivity; R.K. Osborn

Xyleborinus echinopterus holotype declivity; R.K. Osborn


  Xyleborinus echinopterus  holotype frontal; R.K. Osborn

Xyleborinus echinopterus holotype frontal; R.K. Osborn


Taxonomic history

Xyleborinus echinopterus 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
): 342.

Diagnosis

3.0 mm long (n = 1); 2.73 times as long as wide. This species is distinguished by the posteriorposterior:
toward the rear end; opposite of anterior
margin of elytraelytron:
the two sclerotized forewings of beetles that protect and cover the flight wings
broadly rounded; declivitaldeclivital:
pertaining to the elytral declivity
face with interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
1 and 2 unarmed by tubercles; elytralelytral:
pertaining to the elytra
declivitaldeclivital:
pertaining to the elytral declivity
face weakly sulcatesulcate:
deeply furrowed or grooved
; large body size; laterallateral:
pertaining to the side
declivitaldeclivital:
pertaining to the elytral declivity
margins elevated, bearing 2−4 pairs of small, narrow, sharply pointed spinesspine:
an elongate projection of the exoskeleton that is longer than its basal width
of equal size (often asymmetric) on sulcatesulcate:
deeply furrowed or grooved
/3 of declivitydeclivity:
downward slope of either the pronotum or elytra
; sulcatesulcate:
deeply furrowed or grooved
area of declivitydeclivity:
downward slope of either the pronotum or elytra
smooth, shiningshining:
appearing glossy or bright in luster; referring to a surface that is polished and reflects light well
; and stout body.

May be confused with

Xyleborinus artestriatus, X. ephialtodes, X. kwangruengensis, X. octiesdentatus, X. schaufussi, X. speciosus, and X. spinipennis

Distribution

China (Hong Kong)

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

specimens not available for sequencing