Drilus huijbregtsi sp. nov.

(Figs 3, 14, 23, 35)

Type material. Holotype, male, "Amasia, Coll. D. A. Reclaire, Drilus concolor Ahr. E. le Moult" (RMNH).

Type locality. Turkey, Amasya.

Diagnosis. Drilus huijbregtsi sp. nov. is similar in habitus and coloration to D. turcicus sp. nov. These species differ in the shapes of clypeus, antennae (Figs 23, 31) and male genitalia (Figs 35, 43).

Description. Male (holotype). Body 3.3 times longer than width at humeri, dark brown to black, trochanters and tarsi brown; body covered with light brown pubescence (Fig. 3). Head including eyes slightly wider than anterior margin of pronotum (Fig. 14), dorsally with wide shallow depression, covered with large shallow punctures, with sparse semierect to erect pubescence; clypeal margin widely concave. Eyes medium-sized, their frontal distance 2.0 times eye diameter. Mandibles curved, incisor margin with short conspicuous tooth medially. Labrum transverse; maxillary palpi slender, apical palpomere obliquely cut. Antennae pectinate (only two and eight antennomeres present of left and right antenna, respectively); antennomere 3 long, serrate, antennomeres 4–8 pectinate (Fig. 23). Pronotum slightly convex, transverse, widest at middle, 1.6 times wider than length at midline. Anterior margin almost straight, lateral margins convex, widened; posterior margin bisinuate. Anterior angles inconspicuous, posterior angles rectangular (Fig. 14); surface of disc sparsely covered with fine shallow punctures, with sparse semierect to erect pubescence, pubescence denser at angles. Scutellum flat, gradually narrowed, wrinkled; apex widely rounded. Prosternum transverse, slightly wrinkled, frontal margin almost straight, posterior margin widely convex, steeply declivitous, prosternal process inconspicuous. Mesoventrite widely v-shaped, with groove anteromedially. Elytra relatively long, subparallel-sided, slightly wrinkled, covered with semierect pubescence. Legs slender, slightly compressed, with sparse, long, semierect setae, tarsomeres 1–4 gradually shortened, tarsomere 4 shortest, apical tarsomere longest, slender, longer than combined lengths of tarsomeres 3 and 4. Penultimate ventrite medially with deep rounded emargination. Aedeagus with robust, considerably curved phallus; paramera rather short, slightly membranous apically; phallobase long, u-shaped (Fig. 35). Female and immature stages are unknown.

Measurements. BL 6.4 mm, EL 4.4 mm, WHe 1.3 mm, WHum 1.9 mm, PL 1.0 mm, PW 1.6 mm, Edist 0.9 mm, Ediam 0.4 mm.

Distribution. Northern Turkey (Amasya Province; Fig. 55).

Etymology. This species is named after Dr. Hans Huijbregts (RMNH, Leiden, Netherlands).