Ptomaphagus (s. str.) tingtingae, Wang, Cheng-Bin, Nishikawa, Masaaki, Perreau, Michel, Ruzicka, Jan & Hayashi, Yasuhiko, 2016

Wang, Cheng-Bin, Nishikawa, Masaaki, Perreau, Michel, Ruzicka, Jan & Hayashi, Yasuhiko, 2016, Revision of the genus Ptomaphagus Hellwig (Coleoptera, Leiodidae, Cholevinae) from Taiwan Island, ZooKeys 609, pp. 43-62 : 54-60

Taxon classification Animalia Coleoptera Leiodidae

Ptomaphagus (s. str.) tingtingae sp. n. Figs 3 C–E; 9B, D, F, I, J; 10C, D; 11

Type locality.

Taiwan, Fushan [福山, ca. 24°46'N, 121°30'E].

Type material.

Holotype: ♂, CHINA, Taiwan, Fushan [福山, ca. 24°46'N, 121°30'E], mouse carcass bait, III.2007, Wen-Bo Huang leg. (5#) (NTUC). Paratypes: 6♂♂7♀♀, same data as holotype (1♂1♀ in CCBW, 1♂1♀ in CJRZ, 1♂1♀ in CMNE, 1♂1♀ in CMPR and 2♂♂3♀♀ in NTUC); 7♀♀, same data as holotype ex cept: IV.2007, (1#) (NTUC); 2♂♂1♀, Taiwan: Tai Pei Co. / Noi Dong [?Neidong=内洞, ca. 24°49'N, 121°32'E] Logging Road, / 850 m, 19.ii.2004, / Flight intercept trap. / leg. Chun Lin Li (ZMHB); 2♀♀, Taiwan: Tai Chun Co., / An Ma Shan [鞍馬山, ca. 24°16'N, 121°00'E], 2 km, / 24.-26.vi.2003 / Flight intercept trap. / leg. Chun Lin Li (ZMHB).

Description.

Male. EBL: 4.0-4.3 mm (4.1 mm in holotype). Length of different body parts: HL: AL: PL: ELL = 0.62: 1.22: 1.00: 2.27 mm; width: HW: EW: PW: ELW = 1.00: 0.11: 1.55: 1.68 mm. Proportion of antennomeres from base to tip in μm (length × width): 180 × 72, 134 × 66, 111 × 74, 73 × 79, 73 × 92, 60 × 111, 92 × 127, 47 × 125, 87 × 136, 101 × 140, 176 × 132.

Habitus (Fig. 3C, E) elongated oval, regularly convex and sublustrous. Well pigmented: mostly dark brown, head darker; mouthparts, basal three antennomeres and apical half of ultimate antennomere, protarsi, and apex of meso- and metatarsi somewhat yellowish. Dorsum continuously clothed with fine, recumbent, yellowish pubescence. Insertions of pubescence on dorsal surfaces of pronotum, elytra and femora aligned along transverse striolations; interspace between two striolations glabrous.

Head transverse, HW/HL = 1.6. Clypeofrontal suture absent. Clypeus with anterior margin slightly rounded. Compound eyes well developed, EW/HW = 0.1. Antennae (Fig. 11A) slender, AL/HW = 1.2; antennomere III a little shorter than II; VI with length/width = 0.5; XI pear-shaped.

Pronotum (Fig. 11B) transverse, widest just before hind angles, PW/PL = 1.6. Sides gently arched, gradually narrowing from posterior to anterior; hind angles projected backwards and acute. Posterior margin widely protruding in the middle part, distinctly emarginate near hind angles.

Elytra oval, widest at about basal 1/3, ELL/EW = 1.4. Sides weakly arched, gradually narrowing from widest part to apices, which narrowly rounded (Fig. 11G). Sutural striae present. Metathoracic wings fully developed.

Prolegs robust, with basal three protarsomeres (Fig. 11C) strongly expanded: TW/BTW = 1.2. Protibiae (Fig. 11C) distinctly expanded towards apex. Profemora rather broad. Mesotibiae arcuate, mesotarsi simply linear. Metatibiae slender and straight.

Abdominal ventrite VIII (Fig. 11I) narrowly round at posterior edge, though an inconspicuous median notch at the median. Genital segment (Fig. 8J) with very slender spiculum gastrale, protruding about 3/8 of its length beyond anterior edge of epipleurite IX.

Aedeagus (Fig. 9B) long and rather slender, with median lobe gradually narrowing towards narrowly lanceolate apical part and terminated by round knob in dorsal view; opening of genital orifice situated on dorsal surface, deeply cut inwards on preapical left margin of median lobe. Ventral surface of the apex of the median lobe (Fig. 9J) inserted with a row of 6 ventrally-oriented setae on the left side and a row of 5 ventrally-oriented setae on the right side. Parameres narrow, reaching about apical 1/6 of median lobe, each with 1 apical and 2 preapical setae, the apical one very shorter (Fig. 9F). In lateral view (Fig. 9D), median lobe regularly bent ventrad, gradually tapering apically. Endophallus with stylus quite slender, a cheliform complex just below the base of stylus, and a circular complex in basal region.

Female. Similar to male in general appearance (Fig. 3D), including elytral apices (Fig. 11H), but distinguished by the following characteristics: protarsi (Fig. 11D) simply linear; protibiae (Fig. 11F) only slightly narrower; abdominal ventrite VIII (Fig. 10D) regularly rounded at posterior edge; genital segment as shown in Fig. 10C: spermatheca (Fig. 10C) curved in distal part and coiled in proximal part.

Diagnosis.

See under Ptomaphagus (s. str.) chenggongi sp. n. above.

Etymology.

The specific epithet is dedicated to Miss Ting-Ting Song, the first author’s former colleague (Institute of Zoology, Chinese Academy of Sciences, Beijing, China), who did important primary work on Chinese Leiodes Latreille, 1796 ( Leiodidae : Leiodinae ).

Distribution.

China (Taiwan) (Fig. 12).