Amasa versicolor

Taxonomic history

Xyleborus versicolor Sampson, 1921: 29.

Amasa versicolor (Sampson): Wood and Bright, 1992: 685

Diagnosis

2.5−2.6 mm long (mean = 2.57 mm; n = 5); 2.27−2.43 times as long as wide. The species is 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
; declivitydeclivity:
downward slope of either the pronotum or elytra
setose, interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
moderately covered with semi-recumbentsemi-recumbent:
pertaining to setae that are in between erect and recumbent, usually at a 45 degree angle
hair-like setaeseta:
small hair-like or scale-like structure
, approximately as long as the 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
long, erecterect:
pertaining to setae that have their apices directed away from the body and appear straight
, bristle-like.

May be confused with

Amasa cycloxyster, A. galeoderma, A. resecta, A. schlichii, and A. youlii

Distribution

Federated States of Micronesia, India (West Bengal), Indonesia (Java), East & West Malaysia, Myanmar, Sri Lanka, Thailand, Vietnam

Host plants

a polyphagous species (Browne 1961bBrowne 1961b:
Browne FG. 1961b. The biology of Malayan Scolytidae and Platypodidae. Malayan Forest Records 22: 1-255., Beaver and Browne 1978Beaver and Browne 1978:
Beaver RA, Browne FG. 1978. The Scolytidae and Platypodidae (Coleoptera) of Penang, Malaysia. Oriental Insects 12: 575-624. https://doi.org/10.1080/00305316.1978.10432538)

DNA data

Sequences available for COI and CAD.

COI: GU808693.1; MN619814; MN619815; MN619816; OP617795

CAD: GU808618.1; MN620111; OP607225