Euwallacea velatus
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Euwallacea velatus lateral; S.M. Smith |
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Euwallacea velatus dorsal; S.M. Smith |
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Euwallacea velatus declivity; S.M. Smith |
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Euwallacea velatus frontal; S.M. Smith |
Taxonomic history
Xyleborus velatus Sampson, 1913: 443.
Euwallacea velatus (Sampson): Wood, 1989: 173.
Synonyms
Xyleborus rudis Eggers, 1930: 192. Smith et al., 2020b: 260.
Xyleborus assamensis Eggers, 1930: 195. Preoccupied by Stebbing 1909Stebbing 1909:
Stebbing EP. 1909. On some undescribed Scolytidae of economic importance from the Indian Region, II. Indian Forest Memoirs 1: 13-32.. Wood, 1989: 173.
Xyleborus asperipennis Eggers, 1934b: 27. Unnecessary new name for X. assamensis Eggers nec Stebbing. Wood, 1989: 173.
Diagnosis
2.8−3.6 mm long (mean = 3.28 mm; n = 5); 2.31−2.57 times as long as wide. This species is distinguished by the granulategranulate:
pertaining to a coarse, grainy surface texture
posterolateral costacosta:
elevated ridge that is rounded at its crest, not necessarily with sharp appearance
, pronotumpronotum:
the dorsal surface of the thorax
appearing subquadratesubquadrate:
almost quadrate, with oblique corners
(type 3) when viewed dorsally; protibiaprotibia:
tibia of the first pair of legs
outer margin rounded, bearing nine small socketed denticlesdenticle:
a small tooth, the sides of which are equal and the tip is above the middle of the base
, sockets small; posterolateralposterolateral:
relating to end of the side part/portion
margin of declivitydeclivity:
downward slope of either the pronotum or elytra
costate and granulategranulate:
pertaining to a coarse, grainy surface texture
; declivitydeclivity:
downward slope of either the pronotum or elytra
rounded and convexconvex:
appearing rounded
; and elytralelytral:
pertaining to the elytra
bases rounded, never weakly costate, or granulategranulate:
pertaining to a coarse, grainy surface texture
.
May be confused with
Euwallacea fornicatus species complex (E. fornicatior, E. fornicatus, E. kuroshio, E. perbrevis), E. andamanensis, E. geminus, E. interjectus, E. malloti, E. neptis, E. semirudis, E. testudinatus, E. validus
Distribution
China (Xizang, Yunnan), India (Andaman Is, Arunachal Pradesh, Assam, Meghalaya, Nagaland, Sikkim, Uttar Pradesh, West Bengal), Laos, Myanmar, Nepal, Thailand, Vietnam
Host plants
polyphagous (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
Sequences available for COI and CAD.
