Cladophorus boceki sp. nov.

(Figs. 7, 21, 37, 55–56)

Type material. Holotype, male. Indonesia, Papua Prov., Yapen Island, Road Konti Unai –Ambaid, 136°19´E 1°45´S, 600–700 m (A00407, LMBC) ; Paratypes, 2 males, same locality data (A00406, 408, LMBC) .

Diagnosis. Cladophorus boceki is closely related to C. praecipuus (Fig. 4) and both species are similar in the general appearance (Figs. 21, 30, 37, 47). Despite their very low genetic divergence, these species are clearly defined by the length of antennal lamella 3 (Figs. 7, 14), the relative size of male eyes (ratio 1.55 and 2.02 in C. boceki and C. praecipuus, respectively) and C. boceki has a robust phallus with the gradually pointed apical part unlike C. praecipuus, which has the slender phallus, parallel-sided in four-fifths of its length (Figs. 55–56, 73–74).

Description. Male. Body large, 13.6–14.1 mm long, dark brown to black, elytra yellow, only apical 1/12 black (Fig. 37), transition between dark and light coloured parts of elytra abrupt, only elytral costae with slightly larger dark part (Fig. 37). Head small, with hemispherically prominent eyes, frontal interocular distance 1.52 times maximum diameter; antennae long, reaching two thirds of elytral length, flabellate, antennomere 3 with lamella 2.4 times longer than stem of antennomere, lamella attached to apical part of antennomere (Fig. 7). Pronotum transverse, 1.5 times wider than long at midline, lateral margins slightly elevated, frontal margin rounded, lateral margins bi-sinuate, frontal angles well marked, posterior angles sharply prominent, postero-lateral carinae weak (Fig. 21). Elytra flat, slightly widened posteriorly, transverse costae weak, partly covered by pubescence, elytral areoles slightly transverse (Fig. 37). Phallus robust, widest in apical third, gradually acuminate apically, with robust apical process (Figs. 55–56).

Measurements. BL 13.6–14.1 mm, PL 1.95–2.0 mm, PW 2.85–2.95 mm, WH 1.60–1.65 mm, Edist 1.02 mm, Ediam 0.66 mm, LE 11.6 mm, antennomere 3: stem 1.1 mm, lamella 2.6 mm.

Distribution. Yapen Island (Fig. 3).

Etymology. The species name is a patronym in honor of Matej Bocek (Olomouc).