Dryocoetiops pasohensis Beaver, Smith and Sanguansub, 2019

Beaver, Roger A., Smith, Sarah M. & Sanguansub, Sunisa, 2019, A review of the genus Dryocoetiops Schedl, with new species, new synonymy and a key to species (Coleoptera: Curculionidae: Scolytinae), Zootaxa 4712 (2), pp. 236-250 : 240-241

Dryocoetiops pasohensis Beaver, Smith and Sanguansub , sp. n.

(Figs 22–25)

Body. Brown, 2.2 mm long, 2.44 times as long as wide.

Head. Frons convex, moderately shining, sparsely finely punctured, the punctures with moderately long setae, fringe of dense setae on anterior margin of epistoma, a short elevated median line just above epistoma. Antenna with four-segmented funicle (excluding pedicle); first segment of antennal club extends one quarter of total length of club on anterior face, its apical margin convex apically. Eyes large, extending onto frons, coarsely faceted, upper part larger than lower part.

Pronotum. 0.94 times longer than wide, widest about one-third of length from base, posterior angles broadly rounded, sides subparallel in basal half, broadly rounded anteriorly, anterior margin not tuberculate, summit at middle, a weak transverse depression just behind it; anterior slope with numerous asperities with rounded apex, larger and more elevated in antero-lateral areas, weaker and more strongly transverse towards the summit, each bearing on its posterior side a single stiff seta; disc shining, rather weakly, not very densely granulate, becoming rugulose at posterior angles, the granules with fairly short, stiff setae, scattered long setae on anterior and lateral margins.

Scutellum. Shining, linguiform.

Elytra. 1.56 times as long as wide, 1.75 times as long as pronotum, slightly wider than pronotum at base; sides parallel in basal 3/4, then evenly rounded to apex; striae not impressed, slightly wider than interstriae, strial punctures uniseriate and large, separated by about the width of one puncture, bearing minute, fine setae; interstrial punctures much smaller and more widely separated with thick, erect setae slightly flattened at the tips, becoming more scale-like toward declivity. Declivity with strial and interstrial punctures more closely placed; interstrial setae wedge shaped on interstriae 1–4.

Metaventrite with a row of fairly closely spaced sclerolepidia along its dorsal margin.

Legs. Anterior tibia narrowed toward apex with 4 socketed teeth in apical third. Procoxae narrowly separated.

Type Material. Holotype: Female: Pen [insular] Malaysia, Negeri Sembilan, Pasoh Forest Reserve , P 93-2737, Tower-CS-5, Ethanol trap, 27 Nov.–18 Dec. 1993, coll. K. Maetô ( NHML).

Diagnosis. This species is distinguished within the genus by: 1) the large eyes which extend onto the frons, with the upper part above the emargination larger than the lower part; 2) the interstrial setae which are short, flattened, and spatulate on interstriae 1–4 on the elytral declivity.

Etymology. The specific name refers to the location (Pasoh Forest Reserve) where the species was found.

Distribution. West Malaysia.