Platerodrilus ranauensis, Masek, Michal & Bocak, Ladislav, 2014

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 : 52

Taxon classification Animalia Coleoptera Lycidae

Platerodrilus ranauensis sp. n. Figs 9, 24, 54-55

Material examined.

Holotype. Male (LMBC, UPOL 000587), Sumatra, SW coast of Ranau Lake, 1-4. Jun. 2001, 1200 m.

Diagnosis.

Platerodrilus ranauensis was found as a sister species to Platerodrilus talamauensis (Fig. 1) and these species differ in the extent and shape of the orange part of elytra and in the shape of the posterior margin of phallobase (Figs 54-55).

Description.

Body medium-sized, dark brown to black, only pronotum testaceous to brown and basal quarter of elytra orange (Fig. 9). Head small, including eyes slightly narrower than frontal margin of pronotum, antennal tubercles small. Eyes hemispherically prominent, eye diameter 2.3 times frontal interocular distance. Antennae compressed, pubescent, length of antennomere 3 1.1 times antennomere 2. Pronotum transverse, 1.7 times wider than long at midline, anterior margin widely rounded, semicircular, without prominent anterior angles, posterior margin of pronotum bisinuate, surface of disc glabrous, with sparse long pubescence (Fig. 24). Elytra almost parallel-sided, 3.0 times longer than width at humeri; slightly widened posteriorly, widest at apical fourth. Elytral costae inconspicuous. Legs compressed, with dense pubescence. Male genitalia with short rounded parameres bearing slender membranous processes; phallus curved, phallobase wide, deeply emarginate (Figs 54-55).

Measurements.

BL 6.0 mm, PL 0.8 mm, PW 1.3 mm, HW 1.7 mm, Edist 0.79 mm, Ediam 0.35 mm.

Distribution.

Indonesia: Sumatra.

Etymology.

The specific epithet refers to the type locality of the holotype.