Platerodrilus ijenensis, 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 : 44-46

Taxon classification Animalia Coleoptera Lycidae

Platerodrilus ijenensis sp. n. Figs 14, 18, 64-65

Material examined.

Holotype. Male (LMBC, 000586), Java, Ijen N. P., 12 km W of Sodora, 3-5. May 2001, 1000 m.

Diagnosis.

Platerodrilus ijenensis is the only Javanese species of Platerodrilus sinuatus group with bicoloured elytra. It resembles in colour pattern the Sumatran species Platerodrilus corporaali , which differs in the reddish coloured head and basal antennomeres, and the very short antennomere 3.

Description.

Body and head dark brown to black, pronotum, mesoscutellum and elytra in humeral half orange, apical part of elytra dark brown to black (Fig. 14). Head small, including eyes narrower than pronotum at posterior angles, antennal tubercles slightly prominent. Eyes hemispherically prominent, eye diameter 1.8 times frontal interocular distance. Antennae slender, compressed, length of antennomere 3 1.2 times antennomere 2. Pronotum transverse, 1.8 wider than long at midline, anterior margin slightly projected forward, anterior angles marked, lateral margins almost straight, posterior margin bisinuate (Fig. 18). Elytra 3.3 times longer than width at humeri, elytra parallel-sided, elytral costae inconspicuous. Legs slender, compressed, densely pubescent. Male genitalia with slender, curved phallus and small rounded parameres bearing slender membranous process, phallobase wide, narrowly and deeply emarginate (Figs 64-65).

Measurements.

BL 7.2 mm, PL 0.9 mm, PW 1.6 mm, HW 1.8 mm Edist 0.70 mm, Ediam 0.40 mm.

Distribution.

Indonesia: Java.

Etymology.

The specific name refers to the type locality.