Sulcolotis ovalis Liu & Wang sp. nov.

(Figs 3a–g)

Diagnosis. This species is most similar to S. threadis sp. nov. in external appearance but can be distinguished from the latter by the penis guide shorter than parameres. In S. threadis sp. nov., the penis guide is nearly as long as parameres in lateral view.

Description. TL: 2.63–2.86mm, TW: 2.26–2.37mm, TH: 1.37–1.59mm, TL/TW: 1.16–1.21, PL/PW: 0.28– 0.30, EL/EW: 0.94–0.99, HW/PW: 0.56–0.58, PW/TW: 0.63–0.64, HW/TW: 0.35–0.37, Eye W/HW: 0.43–0.46.

Head reddish brown. Elytra reddish brown with a long ovate black spot situated at 1/3 elytral length to base. Underside yellowish brown, except metaventrite and the middle part of the first abdominal ventrite reddish brown.

Body rounded, weakly convex, shiny and glabrous. Eyes finely faceted, interocular distance 0.45 times width of head. Frons broad with irregular transparent spots, punctures uniform and dense (Fig. 3c).

Pronotum 0.64 times of elytral width (PW/TW=1:1.6), moderately transverse, punctures uniform and dense (Fig. 3c). Elytra with uniform and dense punctures (Figs 3a–c).

Ventrite 6 subhemisphenical and ventrite 7 nearly straight (Fig. 3g).

Male genitalia: penis relatively short and slender, apex pointed, penis capsule with nearly same length of inner arm and outer arm. Tegmen with penis guide in lateral view slender, widest at base, narrowing to apex, distinctly shorter than parameres.

Type material. Holotype: ♂, Philippines, Butuan Mindanao, Baker (USNM) . Paratypes: 2 ♀♀, same data as holotype (USNM) .

Distribution. Philippines (Mindanao).

Etymology. The specific epithet is formed from the Latin noun ovalis, referring to elytra with a long ovate black spot.