Arixyleborus resecans

Taxonomic history

Xyleborus resecans Eggers, 1930: 184.

Amasa resecans (Eggers): Wood and Bright, 1992: 684.

Arixyleborus resecans (Eggers) Smith et al. 2020b: 127.

Diagnosis

3.0 mm long (n = 1); 2.72 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; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
costate; elytraelytron:
the two sclerotized forewings of beetles that protect and cover the flight wings
obliquely truncatetruncate:
appearing cut off or suddenly shortened
, surrounded by a circumdeclivital carinacarina:
an elevated ridge or keel, not necessarily high or acute
; boundary between elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
and declivitydeclivity:
downward slope of either the pronotum or elytra
distinct, elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
without strial furrows and interstrial ridges; circumdeclivital carinacarina:
an elevated ridge or keel, not necessarily high or acute
emarginated at each striaestria:
punctures in rows, which may or may not be impressed to make grooves
(striae 5 and 6 may be weakly indicated); and declivital striaestria:
punctures in rows, which may or may not be impressed to make grooves
setose, setaeseta:
small hair-like or scale-like structure
minute, recumbentrecumbent:
pertaining to setae that are flat against the cuticle
, as long as a strial puncture.

May be confused with

Amasa spp., Arixyleborus leprosulus

Distribution

India (Andaman Is, Assam)

Host plants

recorded from two species of Dipterocarpus (Dipterocarpaceae) (Maiti and Saha 2004Maiti and Saha 2004:
Maiti PK, Saha N. 2004. Fauna of India and the adjacent countries. Scolytidae: Coleoptera (bark and ambrosia beetles). Vol. 1. Part 1. Zoological Survey of India, Kolkata, 268 pp.)

DNA data

specimens not available for sequencing