Platerodrilus palawanensis, 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 : 50-51

Taxon classification Animalia Coleoptera Lycidae

Platerodrilus palawanensis sp. n. Figs 16, 31, 69-70

Material examined.

Holotype. Male (LMBC, UPOL 001382), Philippines, Palawan, Tanabak river, 150 m, 10°02'49"N, 118°58'31"E, 2.-5. Jan. 2007, Bolm lgt. Paratypes, 8 males (LMBC), same locality data, 22. Dec. 1991; 3 paratypes. Males (KMTC), Philippines, Palawan, Brooke's point, 8. Dec. 2002, leg. F. A. Dacasin. Paratype. Male (KMTC), Philippines, Palawan, Brooke's point, 18. May 2003, leg. F. A. Dacasin. Paratype. Male (KMTC), Philippines, Palawan, Brooke's point, 15. Jan. 2005, leg. F. A. Dacasin.

Diagnosis.

Platerodrilus palawanensis sp. n. resembles Platerodrilus borneensis in flabellate antennae and these species differ in colouration. Platerodrilus borneensis is dark brown and Platerodrilus palawanensis bicoloured (Fig. 16). Additionally Platerodrilus palawanensis has the very short pronotum and straight frontal pronotal margin (Fig. 31).

Description.

Body medium-sized, dark brown to black, only pronotum, mesoscutellum and humeral two thirds of elytra orange; apical third of elytra and two thirds of elytral suture dark brown to black. Head small, including eyes apparently narrower than frontal margin of pronotum, antennal tubercles robust, deeply separated. Eyes hemispherically prominent, eye diameter 1.9 times frontal interocular distance. Antennae flabellate, antennomere 3 with long process, pubescent, length of antennomere 3 1.6 times antennomere 2. Pronotum strongly transverse, 1.5 times wider than long at midline, anterior margin straight, with prominent anterior angles, lateral margins almost straight, posterior margin bisinuate, surface of disc mat, finely punctuate, with dense short pubescence. Elytra 2.9 times longer than width at humeri, elytra almost parallel-sided; slightly widened posteriorly, widest at apical fourth, elytral costae inconspicuous. Legs compressed, with dense pubescence. Male genitalia with curved phallus, short rounded parameres bearing slender membranous processes; phallobase wide, deeply emarginate (Figs 69-70).

Measurements.

BL 7.1 mm, PL 1.0 mm, PW 1.6 mm, HW 1.9 mm, Edist 0.66 mm, Ediam 0.34 mm.

Distribution.

Philippines: Palawan.

Etymology.

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