Arixyleborus nudulus
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Arixyleborus nudulus holotype lateral; R.K. Osborn |
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Arixyleborus nudulus holotype dorsal; R.K. Osborn |
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Arixyleborus nudulus holotype declivity; R.K. Osborn |
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Arixyleborus nudulus holotype frontal; R.K. Osborn |
Taxonomic history
Arixyleborus nudulus Smith, Rabaglia & Cognato, 2018 (in Smith et al. 2018aSmith et al. 2018a:
Smith SM, Rabaglia RJ, Beaver RA, Thu PQ, Cognato AI. 2018a. Attraction of ambrosia beetles (Curculionidae: Scolytinae) to semiochemicals in Vietnam with new records and a new species. The Coleopterists Bulletin 72: 838-844. https://doi.org/10.1649/0010-065X-72.4.838): 841.
Diagnosis
1.5−1.8 mm long (mean = 1.56 mm; n = 5); 2.5−3.0 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 inflatedinflated:
blown up; distended
and granulate; antennalantennal:
pertaining to the antennae
club broader than tall; pronotumpronotum:
the dorsal surface of the thorax
laterallateral:
pertaining to the side
margin oblique; pronotumpronotum:
the dorsal surface of the thorax
anterioranterior:
the front or forward; opposite of posterior margin without serrations; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
acute, denticulatedenticulate:
covered in denticles
; strial furrows and interstrial ridges anteriorly extending no further than midpoint of discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
; and interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br />
impressed and bear smaller punctures.
sparsely setose with minute bristles, almost appearing glabrousglabrous:
smooth, devoid of vestiture
.
May be confused with
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 CAD.
CAD: MN620154
