Platerodrilus montanus
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Ordo: Coleoptera
Familia: Lycidae
Genus: Platerodrilus
Name
Platerodrilus montanus Masek & Bocak, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Material examined
Holotype. Male (LMBC, UPOL 001371), Sumatra Utara, Brastagi, Gn. Sibayak, 26. Jan.–1. Feb. 2005, 1600–2200 m. Paratype. Female larva (LMBC, UPOL VP2308), Sumatra Utara, Brastagi, Gn. Sinabung, 29.–30. Jan. 2005, 1400–2000 m.
Diagnosis
Platerodrilus montanus and Platerodrilus sinabungensis are the only Sumatran species with the dark coloured pronotum. These species differ in the shape of the phallobase, when Platerodrilus montanus has the narrowly emarginate base (Figs 58–59, 66). The larva of Platerodrilus montanus has pronotum without any glabrous tubercles in the disc (Fig. 33).
Description
Body medium-sized, dark brown to black, only basal half of elytra orange and pronotum with irregular light coloured patches in disc (Fig. 13). Head small, including eyes slightly narrower than frontal margin of pronotum. Eyes hemispherically prominent, eye diameter 2.4 times frontal interocular distance. Antennae compressed, length of antennomere 3 1.1 times antennomere 2. Head and antennae with dense, short, pubescence. Pronotum transverse, 1.9 times wider than long at midline; anterior margin slightly projected, lateral margins almost straight, anterior angles weakly marked, posterior margin of pronotum slightly bisinuate (Fig. 21). Elytra almost parallel-sided, elytra 3.5 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 (Fig. 66).
Female larva. Body flat, wide (Fig. 33), pronotum triangular, without glabrous tubercles except two tubercles in middle of posterior margin; mesothorax strongly transverse, with rounded lateral margins and weakly projected posterior angles, laterally with four tubercles, upper rounded, lower only slightly transverse, metathorax similar in shape with more acutely projected posterior margins. Abdominal segments with slender and long lateral processes.
Measurements
BL 8.2 mm, PL 0.9 mm, PW 1.8 mm, HW 2.1 mm, Edist 0.94 mm, Ediam 0.39 mm. Larva. BL 32.3 mm, PL 7.7 mm, PW 13.0 mm.
Distribution
Indonesia: Sumatra, North Sumatra Province, Gn. Sibayak.
Etymology
The specific epithet is derived from the Latin adjective montanus (mountainous) referring to the habitat of the species.
Original Description
- Masek, M; Bocak, L; 2014: The taxonomy and diversity of Platerodrilus (Coleoptera, Lycidae) inferred from molecular data and morphology of adults and larvae ZooKeys, 426: 29-63. doi
