Craspedophorus luzonensis, Häckel, Martin & Anichtchenko, Alexandr, 2015

Häckel, Martin & Anichtchenko, Alexandr, 2015, Two new Craspedophorus species (Coleoptera: Carabidae: Panagaeini) from the Philippines, Zootaxa 3955 (3), pp. 427-434 : 428

Craspedophorus luzonensis sp. nov.

( Fig. 1 )

Type material. Holotype ♂: “ Philippines, N Luzon, Mt. Province, Mt. Polis, 7. 2014, lgt. loc. collector ( DUBC); 1 Paratype, ♀: Philippines [C Luzon Island], Nueva Vizcaya, Dupax del Sur, November 2012, lgt. Ismael Lumawig ( CIB).

Description of holotype. Length 17 mm, width 6.5 mm. Proportions: Pronotum 1.27x wider than long, 1.67x wider than head, elytra 1.41x wider than pronotum.

Colour: Head, pronotum and elytra black, glossy; mandibles, palps, tarsi, base of labrum, base of antennomere IV lighter, reddish. Legs and antennae ferrugineous, proximal parts of femur darkish. Elytron with two yellow spots; humeral spot reaches from 5th interval (4th stria) to margin and to epipleura, preapical spot reaches from 4th to 8th interval. Dorsal and ventral part of body black, covered by yellow setae.

Head large, wide, only 1.67x narrower than pronotum; eyes moderately convex; temples short; labrum strongly excavated at anterior side; clypeus smooth, with four long, yellow setae; vertex convex, sparsely punctured and covered by long, reddish setae; anterior part of frons smooth, fairly convex at middle, laterally depressed, rugate, lateral margin with sulcus rimming it from mandibular base to anterior margin of eyes, anterior side arcuate, sinuate before eyes, moderately impressed, smooth, sharply bordered externally, indistinctly bordered medially.

Pronotum weakly transverse (length to width ratio 1.27), almost hexagonal, widest at middle; lateral angles widely rounded, weakly arcuate anteriorly; anterior angles weakly rounded and distinctly protruded; anterior margin as wide as neck, flat between angular lobes; lateral margins weakly sinuate toward base; base parallel, oblique laterally near posterior angle; lateral rims punctured, narrowing anteriorly, posteriorly wider and more elevated; disc densely rugate and punctured; sagittal line distinctly impressed, reaching neither anterior margin nor base; basal pits elongate, narrowly and deeply impressed, coarsely punctured.

Elytra almost parallel-sided, widest at middle, elongate, slightly convex, weakly tuberose in front of apex; disc flattened; humerus weakly developed; margins rounded, widening posterio-laterally; basal rim indistinct striae deeply impressed and very slightly punctured; intervals moderately convex, sparsely but coarsely punctured, interspaces with distinct microsculpture.

Venter black, metepisternum transverse, punctured, weakly elongated and narrowed towards posterior. Ventrites laterally rugate, finely rugate at middle, densely covered by long setae.

Aedeagal median lobe stout, strongly curved laterally, apical lamella short, apex rounded ( Fig. 1 ).

Differential diagnosis. Based on similar habitus and elytral pattern, C. luzonensis sp. nov. belongs to the “obscurus species group sensu Häckel & Kirschenhofer (2014). It resembles C. cenwanglao Häckel & Kirschenhofer, 2014 ( Fig. 2 ) from western Guangxi, China, and C. phoupanensis Häckel & Kirschenhofer, 2014 from northern Laos, particularly in the pronotum. The new species differs from them by somewhat more elongate habitus, less convex elytra, elytra with more grossly and deeply punctured striae and more extended spots; the humeral spot extends from 4th stria (external part of 4th interval) to margin and the preapical spot extends from 3rd stria (4th interval) to 9th interval, contrary to both continental species in which the humeral spot reaches from external part of 5th interval and the preapical spot from 4th stria (5th interval) to 9th interval ( Fig. 2 ). In addition, intervals are less dense and more coarsely punctured than in C. luzonensis sp. nov.

Etymology. Named after the place of its occurrence - Luzon, island in the Philippines.

Distribution. Luzon island, Philippines.

Figures

FIGURE 1. Craspedophorus luzonensis sp. nov.: A. Holotype, B. Lateral view of aedeagus.

FIGURE 2. C. cenwanglao Häckel & Kirschenhofer, 2014: A. Paratype, B. Lateral view of aedeagus.