Microperus cruralis

Taxonomic history

Xyleborus cruralis Schedl, 1975b: 456.

Coptodryas cruralis (Schedl): Beaver, 1995a: 201.

Microperus cruralis (Schedl): Smith et al. 2020b: 287.

Synonyms

Xyleborus myllus Browne, 1986a: 92. Sittichaya et al. 2021: 202.

Diagnosis

3.0−3.1 mm long (mean = 3.03 mm; n = 3); 2.5−2.82 times as long as wide. This species is distinguished by its large size; elytralelytral:
pertaining to the elytra
discdisc:
the flat central upper surface of any body part (e.g. pronotum and elytra)
broadly, deeply transversely impressedimpressed:
a depression in a surface
with a saddle-like depression from scutellumscutellum:
a shield-like sclerotized plate located at the midpoint of the elytral base 
to declivitaldeclivital:
pertaining to the elytral declivity
basebase:
point or edge closest to the body; opposite of apex
; elytralelytral:
pertaining to the elytra
declivitydeclivity:
downward slope of either the pronotum or elytra
deeply sulcatesulcate:
deeply furrowed or grooved
, its margins lined by large tuberclestubercle:
a small knob-like or rounded protuberance of the exoskeleton
on interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
1, 3−6; elytralelytral:
pertaining to the elytra
basebase:
point or edge closest to the body; opposite of apex
emarginated from sutural margin to interstriainterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
4 to accommodate mycangial tuftmycangial tuft:
tuft of setae that denotes the mycangia exterior opening
, mycangial tuftmycangial tuft:
tuft of setae that denotes the mycangia exterior opening
setae long, very dense; and posterolateralposterolateral:
relating to end of the side part/portion
costacosta:
elevated ridge that is rounded at its crest, not necessarily with sharp appearance
absent.

May be confused with

Microperus nugax, M. sagmatus, and M. undulatus

Distribution

Cambodia, Laos, Thailand

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