Microperus nugax

Taxonomic history

Xyleborus nugax Schedl, 1939a: 353.

Coptodryas nugax (Schedl): Wood, 1989: 171.

Microperus nugax (Schedl): Hulcr, 2010: 112.

Diagnosis

1.8−1.9 mm long (mean = 1.84 mm; n = 4); 2.57−2.71 times as long as wide. This species is distinguished by the declivitaldeclivital:
pertaining to the elytral declivity
interstriae densely covered with long erecterect:
pertaining to setae that have their apices directed away from the body and appear straight
hair-like setae; elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
medially convexconvex:
appearing rounded
, appearing humped; elytralelytral:
pertaining to the elytra
declivitydeclivity:
downward slope of either the pronotum or elytra
long, gradual; all declivitaldeclivital:
pertaining to the elytral declivity
interstriae uniformly granulategranulate:
pertaining to a coarse, grainy surface texture
from basebase:
point or edge closest to the body; opposite of apex
to apexapex:
point or edge furthest from the body; opposite of base
; declivitaldeclivital:
pertaining to the elytral declivity
face convexconvex:
appearing rounded
; posterolateralposterolateral:
relating to end of the side part/portion
carinacarina:
an elevated ridge or keel, not necessarily high or acute
granulate; antennalantennal:
pertaining to the antennae
club flat, type 3 with two sutures visible on posteriorposterior:
toward the rear end; opposite of anterior
face; and elytralelytral:
pertaining to the elytra
declivitydeclivity:
downward slope of either the pronotum or elytra
shagreened, dull.

May be confused with

Microperus cruralis, M. sagmatus, and M. undulatus

Distribution

‘Borneo’, Brunei, China (Yunnan), Indonesia (Java, Sulawesi), East & West Malaysia, Thailand, Vietnam

Host plants

polyphagous (Browne 1961bBrowne 1961b:
Browne FG. 1961b. The biology of Malayan Scolytidae and Platypodidae. Malayan Forest Records 22: 1-255.)

DNA data

Sequences available for COI and CAD.

COI: MN619981

CAD: MN620255