Amasa galeoderma

Taxonomic history

Amasa galeoderma Smith, Beaver & Cognato 2020 (in 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): 36.

Diagnosis

3.0 mm long (mean = 3.0 mm; n = 5); 2.5 times as long as wide. The species can be distinguished by the pronotumpronotum:
the dorsal surface of the thorax
appearing basic (type 2) when viewed dorsally, anterioranterior:
the front or forward; opposite of posterior
margin serrate; elytralelytral:
pertaining to the elytra
declivitaldeclivital:
pertaining to the elytral declivity
surface shagreenedshagreened:
covered with a closely-set roughness, like shark skin
, dull, opaqueopaque:
appearing dull in luster; referring to a surface which reflects little light
; interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
granulategranulate:
pertaining to a coarse, grainy surface texture
, granulesgranule:
a small rounded protuberance, like grains of sand
multiseriate, confusedconfused:
of markings, having indefinite outlines or running together as lines or spots without definite pattern; usually referring to punctures
; interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
1 moderately covered with semi-recumbentsemi-recumbent:
pertaining to setae that are in between erect and recumbent, usually at a 45 degree angle
fine hair-like setaeseta:
small hair-like or scale-like structure
, less than half width of an interstriainterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
; and circumdeclivital ringcircumdeclivital ring:
a costa that completely encircles the elytral declivity
margin setose, setaeseta:
small hair-like or scale-like structure
short, erecterect:
pertaining to setae that have their apices directed away from the body and appear straight
, hair-like.

May be confused with

Amasa cycloxyster, A. resecta, A. schlichii, and A. versicolor

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 COI and CAD.

COI: MN619807

CAD: MN620108