Platerodrilus tujuhensis, 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 : 54-55

Taxon classification Animalia Coleoptera Lycidae

Platerodrilus tujuhensis sp. n. Figs 12, 27, 41, 56-57

Material examined.

Holotype. Male (LMBC, UPOL 001385), Sumatra, Jambi Kersik Tua, Gn. Kerinci, 19-22. Jan. 2005, 1600-2200 m. Paratype. Female (LMBC, VP2305), Sumatra, Jambi prov. Kerinci Seblat N. P., 7 km E Kayuaro, Mt. Tujuh, 1°45'S, 101°25'E, 25. Feb.-2. Mar. 2003, 1750 ± 250 m.

Diagnosis.

Platerodrilus tujuhensis resembles in the uniformly light coloured head, pronotum and elytra Platerodrilus robinsoni , which differs in the more robust basal part of the phallus. The molecular phylogeny suggests the sister relationships of Platerodrilus maninjauensis and Platerodrilus tujuhensis . These species differ in colouration (Figs 7, 12) and the shape of the phallus and phallobase (Figs 56-57, 60-61). The female larvae of both species are similar and differ only in the relative size of mesonotal tubercles, which are smaller in Platerodrilus tujuhensis .

Description.

Body dark brown to black; head, pronotum and elytra yellow to orange, apical margins of elytra infuscate (Fig. 12). Head including eyes narrower than pronotum, antennal tubercles slightly prominent. Eyes hemispherically prominent, frontal interocular distance 2.6 times eye diameter. Antennae compressed, slender, length of antennomere 3 0.9 times antennomere 2. Pronotum transverse, 1.8 wider than long at midline, anterior margin widely rounded, anterior angles inconspicuous, posterior margin bisinuate (Fig. 27). Elytra 3.7 times longer than width at humeri, widest posteriorly, elytral costae inconspicuous. Legs slender, compressed with dense pubescence. Male genitalia with slender, curved phallus and small rounded parameres bearing slender membranous processes, phallobase wide, narrowly and deeply emarginate (Figs 56-57).

Female larva. Body flat, wide, dark brown, only margins of tergites lighter, pronotum triangular (Fig. 41), with two glabrous rounded tubercles postero-laterally, another two tubercles in middle of anterior margin; mesothorax strongly transverse, with rounded lateral margins and weakly projected posterior angles, laterally with four tubercles, upper rounded, lower transverse, metathorax similar in shape with more acutely projected posterior margins. Abdominal segments with slender and long lateral processes.

Measurements.

BL 8.1 mm, PL 0.9 mm, PW 1.6 mm, HW 1.9 mm, Edist 0.81 mm, Ediam 0.31 mm. Larva. BL 32.7 mm, PL 6.6 mm, PW 10.2 mm.

Distribution.

Indonesia: Sumatra.

Etymology.

The specific epithet refers to the locality of the paratype.