The taxonomy and diversity of Platerodrilus (Coleoptera, Lycidae) inferred from molecular data and morphology of adults and larvae
Author
Masek, Michal
Author
Bocak, Ladislav
text
ZooKeys
2014
426
29
63
http://dx.doi.org/10.3897/zookeys.426.7398
journal article
http://dx.doi.org/10.3897/zookeys.426.7398
1313-2970-426-29
97E141BB90734FB58CF3BAD4179DEF07
Taxon classification Animalia Coleoptera Lycidae
Platerodrilus foliaceus
sp. n.
Figs 4, 22, 40, 46-47
Material examined.
Holotype. Male (LMBC, UPOL 000589), Borneo, Central Kalimantan Prov., 60 km SE Muara Teweh,
1°20'25"S
,
115°20'16"E
, 24.-28. Jun. 2001, 150 m. Paratypes. 12 females, same locality data (LMBC, UPOL 000588).
Diagnosis.
Platerodrilus foliaceus
belongs to the
Platerodrilus paradoxus
group and the male resembles
Platerodrilus paradoxus
in general appearance.
Platerodrilus foliaceus
differs in the rounded apex of parameres (Figs 46-47). The female larvae of
Platerodrilus foliaceus
are very flat and have much slenderer lateral processes of abdominal segments than
Platerodrilus paradoxus
(Figs 34, 40).
Description.
Male. Body small-sized, brown, head, antennae, legs except bases of femora and apical three fifths of elytra dark brown (Fig. 4). Head small, with hemispherically prominent eyes, head with eyes slightly wider than frontal margin of pronotum, eye diameter 1.7 times frontal interocular distance. Antennae compressed, covered with long, erected, dense pubescence, length of antennomere 3 0.7 times antennomere 2. Pronotum flat, without carinae, 1.7 times wider than long at midline, frontal margin slightly projected anteriorly, frontal angles obtuse, but apparent, lateral margins rounded, posterior margin slightly bisinuate (Fig. 22). Elytra flat, parallel-sided, elytral costae inconspicuous, elytra 2.9 times longer than width at humeri. Legs slender, compressed, densely pubescent. Male genitalia with robust parameres, phallus slightly curved with bulbous tip. Parameres stout with hooked tip, apical half of ventral edge serrate. Phallobase wide, deeply emarginate (Figs 46-47).
Female
larva. Body extremely flat and wide (Fig. 40), pronotum triangular, without any glabrous tubercles, in middle of anterior margin four subequal tubercles; mesothorax strongly transverse, with rounded lateral margins and moderately projected posterior angles, metathorax similar in shape with more acutely projected posterior margins. Abdomen with very slender and long lateral processes.
Measurements.
Male. BL 6.0 mm, PL 0.9 mm, PW 1.5 mm, HW 1.7 mm, Edist 0.78 mm, Ediam 0.46 mm. Larva. BL 19.3 mm, PL 5.1 mm, PW 11.2 mm.
Distribution.
Indonesia: Kalimantan. Known only from the type locality.
Etymology.
The specific epithet refers to the flat body shape of the female larva.
Remark.
The males and female larvae were identified as conspecific on the basis of highly similar sequences of rrnL (Fig. 1).