Platerodrilus robinsoni Blair, 1928

Masek, Michal & Bocak, Ladislav, 2014, The taxonomy and diversity of Platerodrilus (Coleoptera, Lycidae) inferred from molecular data and morphology of adults and larvae, ZooKeys 426, pp. 29-63 : 55-56

Taxon classification Animalia Coleoptera Lycidae

Platerodrilus robinsoni Blair, 1928 Figs 6, 19, 62-63

Platerodrilus korinchiana robinsoni Blair 1928: 182.

Platerodrilus robinsoni Blair, 1928, stat. n.

Material examined.

Holotype. Sumatra, Sungei Kumbang, Korinchi, 4500 ft, Apr. 1914 (BMNH). Other material examined. Male (LMBC, UPOL 001378), Sumatra, Jambi Kersik Tua, Gn. Kerinci, 19.-22. Jan. 2005, 1600-2200 m.

Diagnosis.

Platerodrilus robinsoni resembles Platerodrilus luteus in general appearance, but differs in the shape of the phallobase and phallus (Figs 62-63, 67-68).

Redescription.

Body black; head and mesoscutellum dark brown, pronotum and elytra orange yellow; antennae, and legs dark brown to black (Fig. 6). Head small, antennal tubercles separated by deep groove. Eyes hemispherically prominent, frontal interocular distance 2.1 times maximum eye diameter. Antennae slender, compressed, densely pubescent, antennomere 3 1.1 times longer than antennomere 2. Pronotum transverse, 1.6 times wider than long, anterior margin rounded, frontal angles obtuse, lateral margins slightly convex, posterior angles approximately rectangular (Fig. 19). Elytra parallel-sided, elytra 3.3 times longer than width at humeri, elytral costae weak, covered with dense pubescence. Male genitalia with curved phallus; parameres short, rounded, with slender membranous process; phallobase wide, deeply emarginate (Figs 62-63).

Measurements.

BL 7.8 mm, PL 1.0 mm, PW 1.6 mm, HW 2.0 mm, Edist 0.85 mm, Ediam 0.40 mm.

Distribution.

Indonesia: Sumatra.

Remark.

Platerodrilus robinsoni differs from Platerodrilus korinchianus in the colouration; but both species are syntopic. Therefore, the species rank is proposed for Platerodrilus robinsoni stat. n.