Pediacus taiwanensis Marris & Ślipiński, 2014

Marris, John W. M. & Ślipiński, Adam, 2014, A revision of the Pediacus Shuckard 1839 (Coleoptera: Cucujidae) of Asia and Australasia, Zootaxa 3754 (1), pp. 32-58 : 54

Pediacus taiwanensis Marris & Ślipiński , sp. nov.

Figs. 10 D–H.

Diagnosis. Recognisable by the combination of the following characters: body form elongate, eyes large and strongly projecting, pronotum weakly transverse with distinct, narrowly obtuse denticles, male genitalia with slender, elongate parameres.

Description. Body length 3.7–4.5 mm (n=6), strongly elongate, 3.26× longer than wide; colour red-brown to orange-brown, head and pronotum slightly darker; pubescence moderately long, pale, appressed and moderately conspicuous; surface weakly glossy. Head transverse, 1.79× wider than long; puncturation weakly impressed and sparse medially, increasing in size and density laterally with punctures separated by about their diameter; setae long and appressed, moderately conspicuous; microsculpture finely reticulate, surface moderately glossy; eyes large, strongly projecting, ocular index 0.66, finely faceted, postocular denticle absent; antennae as in Fig. 10 D, antennomere VII larger than VI and VIII. Pronotum weakly transverse, 1.10× wider than long, widest at about midpoint, sides subparallel; lateral margins weakly explanate with denticles moderately produced and narrowly obtuse; disc moderately to weakly impressed; puncturation, setation and microsculpture as for head, impunctate median strip faintly visible in basal 1/3 to absent. Elytra strongly elongate, 2.16× longer than wide, sides subparallel, epipleura moderately explanate; puncturation moderately dense but weakly impressed basally, becoming more dense and deeply impressed laterally, puncturation faint on disc; setation moderately long, appressed and conspicuous; microsculpture coriaceous. Genitalia for male as in Figs. 10 F, G, parameres elongate, narrowed basally and tapering to rounded apically; internal sac with weakly-developed tooth-like projections basally and a weakly sclerotized apical section.

Type material. Holotype (male): “ TAIWAN: Kaohsiung Tengjhih (ª¼) 27.V–22.VI.2005, leg. C.-L. Li // HOLOTYPE Pediacus taiwanensis Marris & Ślipiński 2013 ”. Specimen mounted on card point with abdomen glued beside. Genitalia mounted in Hoyer’s solution on slide. Details on slide: “ TAIWAN: Kaohsiung Tengjhih 27.V–22.VI.2005, leg. C.-L. Li Pediacus #2 ♂ 1/08 Hoyer’s // HOLOTYPE Pediacus taiwanensis Marris & Ślipiński 2013 ”. Deposited in TARI.

Paratypes. TAIWAN: TAIWAN: Kaohsiung Tengjhih (ª¼) 27.V–22.VI.2005, leg. C.-L. Li (2, TARI; 1 FSCA); TAIWAN: Taitung Taimali (⋏*ffl) 5–7.VII.2006, leg. C.-F. Lee (1, TARI); N. TAIWAN: TaiPei Co. Nei Dong Logging Road (∩ ffiϔffi) ca alt. 850m 10/VI/2003 by FIT collr. C. L. Li (1, TARI); Taiwan: Pingtung Shuangliu (R*) 04.V.2005, leg. J.-F. Tsai (1, TARI).

Distribution. Taiwan.

Etymology. This species is named for its place of origin, Taiwan.

Figures

FIGURE 10. Pediacus species: (A – C) P. thomasi sp. nov.; (D – H) P. taiwanensis sp. nov. (A, E) Head and pronotum; (C, D) antenna; (B, H) dorsal habitus; (F, G) variation of aedeagus.