Euwallacea semiermis

Taxonomic history

Xyleborus semiermis Schedl, 1934c: 89.

Euwallacea semiermis (Schedl): Beaver et al., 2014: 49.

Diagnosis

2.5−2.75 mm long (mean = 2.62 mm; n = 3); 2.78−2.89 times as long as wide. This species is distinguished by its small size; short, steep and sulcatesulcate:
deeply furrowed or grooved
declivitydeclivity:
downward slope of either the pronotum or elytra
armed only by one transverse row of four granulesgranule:
a small rounded protuberance, like grains of sand
, one on interstriaeinterstria:
longitudinal spaces along the elytra between the striae, which is not as<br /> impressed and bear smaller punctures.
1 and 3 at declivitaldeclivital:
pertaining to the elytral declivity
summit; pronotumpronotum:
the dorsal surface of the thorax
from dorsaldorsal:
of or relating to the upper surface; opposite of ventral
view elongate (type 7); and pronotalpronotal:
pertaining to the pronotum
asperitiesasperity:
small flat denticle-like structures frequently arranged in rows or confined to specific areas
fine, minute.

May be confused with

Euwallacea minutus

Distribution

Indonesia (Java), Thailand

Host plants

recorded only from Schefflera (Araliaceae) (Kalshoven 1959bKalshoven 1959b:
Kalshoven LGE. 1959b. Studies on the biology of Indonesian Scolytoidea 4. Data on the habits of Scolytidae. Second part. Tijdschrift voor Entomologie 102: 135-173 + pls. 15-22.)

DNA data

specimens not available for sequencing