Arixyleborus granulifer

Taxonomic history

Xyleborus granulifer Eggers, 1923: 206.

Arixyleborus granulifer (Eggers): Browne, 1955: 350.

Diagnosis

1.9−2.0 mm long (mean = 1.98 mm; n = 5); 2.11−2.44 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; striaestria:
punctures in rows, which may or may not be impressed to make grooves
not impressedimpressed:
a depression in a surface
; and declivitaldeclivital:
pertaining to the elytral declivity
interstriae bearing a row of short erecterect:
pertaining to setae that have their apices directed away from the body and appear straight
bristles and longer semi-erect hairlike setaeseta:
small hair-like or scale-like structure
, setaeseta:
small hair-like or scale-like structure
as long as an interstriainterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
width.

May be confused with

Arixyleborus hirsutulus and A. sittichayai

Distribution

‘Borneo’, Indonesia (Mentawai Islands, Sulawesi, Sumatra), East & West Malaysia, Philippines, Sri Lanka, Thailand

Host plants

Polyphagous. Ohno (1990), for example, records twenty different genera in fifteen different families.

Remarks

Browne (1961b) describes the gallery system, and notes that the life cycle takes about 8 weeks.

DNA data

Sequences available for COI and CAD.

COI: MN619855

CAD: MN620147