Anemadus perreaui Wang & Zhou, 2016, sp. nov.
Creators: name: Wang, Cheng-Bin
name: Zhou, Hong-Zhang
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Leiodidae
Anemadus
Anemadus perreaui

description: Anemadus perreaui sp. nov.
(Figs. 2 A–D; 3A–L)
Type material. Holotype: CHINA, Sichuan: ♂, Baoxing, Ruobigou, 1630 m, Cyclobalanopsis forest, from fallen wood, 10.VIII.2003, Jie Wu leg. (IZ-CAS). Paratypes: 1♀, same data as holotype (IZ-CAS); 1♀, Baoxing, Ganyanggou, 2000 m, Cyclobalanopsis forest, from fallen wood, 9.VIII.2003, Jie Wu leg. (IZ-CAS).
Description. Male. EBL: 3.00 mm. Length of different body parts: HL: AL: PL: ELL = 0.56: 1.14: 0.68: 1.61 mm; width: HW: EW: PW: ELW = 0.70: 0.12: 1.16: 1.42 mm. Proportion of antennomeres from base to tip in µm (length × width): 111 × 62, 147 × 50, 119 × 43, 74 × 42, 79 × 47, 64 × 51, 94 × 71, 41 × 68, 85 × 81, 83 × 89, 155 × 88.
Habitus (Fig. 2 A) elongated oval, regularly convex and sublustrous. Moderately pigmented: mostly chestnut brown; mouthparts, basal four or five antennomeres and apical half of ultimate antennomere, areas near hind corners of pronotum, elytral apices, and tarsi more or less yellowish. Dorsum continually covered with fine, recumbent, sallow pubescence. Insertions of pubescence on elytra aligned along transverse striolations.
Head retractile, HW/HL = 1.24. Surface covered with strong round punctures, separated about 2.0–4.0 times of their diameter; interspaces smooth, without visable microsculpture. Clypeofrontal suture distinct. Clypeus trapezoidal, anterior margin almost straight. Compound eyes well developed, EW/HW = 0.12. Antennae (Fig. 3 A) long and slender, AL/HW = 1.63; length of 2th/3th = 1.24; 8th asymmetrical, wider than long; 10th slightly wider than long; 11th elongated pear-like.
Pronotum (Fig. 3 D) transverse, widest at about basal 2/5, PW/PL = 1.69. Sides fairly curved, strongly narrowing forward but moderately and almost rectilinearly narrowing backward from widest; hind corners obtuse. Posterior edge slightly bisinuate. Surface covered with large and rough punctures, separated about 1.0–2.0 times of their diameter; interspaces smooth, without visable microsculpture. Postero-lateral impressions absent.
Elytra oval, widest at about basal 3/8, ELL/EW = 1.13. Sides regularly curved, gradually narrowing from widest to apices; apices rounded (Fig. 3 E). Sculpture of type «a» (sensu Giachino & Vailati, 1993): transverse striolations well-marked and irregular, longitudinal striae invisible. When immersed in glycerine, large primitive punctures visible within interior of cuticule, arranging into 8 irregular longitudinal rows (imperceptible in dry specimens) (Fig. 2 D). Sutural striae present but inconspicuous. Interspaces of striolations with microtrichiae, aligning into ca. 5 transverse lines. Metathoracic wings fully developed.
Prolegs slender, with basal three protarsomeres weakly expanded (Fig. 3 B): TW/BTW = 1.49. Protibiae with outer margin almost straight, while inner margin slightly expanded around middle. Profemora wider than protibiae. Mesotibiae distinctly curved, expansion of basal two mesotarsomeres imperceptible. Metatibiae almost straight.
Genital segment (Fig. 3 G) as typical for the genus, tergite IX with a pair of setae long and strong, as well as several fine setae apically.
Aedeagus with median lobe moderately wide, weakly and almost rectilinearly narrowed towards a bifid apex in dorsal view, apical indentation wide, deep and subtriangular, and both branches rounded at apex (Fig. 3 H). Paramere constricted subapically, apex dentiform, pointing outwards and bearing 5 setae, their arrangement as shown in Figs. 3 K&L. In lateral view, median lobe almost straight, parameres wide and rounded at apex (Fig. 3 J). Endophallus of holotype everted, with a pair of spine rows on dorsal wall and a pair of large teeth pointing upwards at end (Figs. 3 H–J).
Female. Similar to male in general appearance (Figs. 2 B&C), but can be distinguished from following characteristics: pro- and mesotarsi simply linear (Fig. 3 C); ventrite VIII with spiculum ventrale short and subtriangularly narrowed anteriorly (Fig. 3 F).
Distribution. China (Sichuan).
Etymology. The specific epithet is dedicated to Dr. Michel Perreau (Université Paris 7, Paris, France), a famous taxonomist on Leiodidae, for his excellent work on Chinese fauna and generous help to our study. Remarks. This new species well resembles A. ruzickai Perreau and A. wolongianus Perreau in general appearance and their type localities also with geographical proximity, but it is easily to distinguish it from the latter two by the combination of the following characteristics: antennomere length of 2th/3th = 1.24; aedeagus with median lobe moderately wide, weakly and almost rectilinearly narrowed towards apex when viewed dorsally, apical indentation wide, deep and subtriangular, and both branches rounded at apex; paramere constricted subapically, apex dentiform, pointing outwards when viewed dorsally, and wide and rounded at apex when viewed laterally; each paramere with 5 setae on inner margin of apex.
description: Published as part of Wang, Cheng-Bin & Zhou, Hong-Zhang, 2016, Two new species of the Anemadus taiwanus species-group (Coleoptera: Leiodidae: Cholevinae: Anemadini) from China, pp. 282-290 in Zootaxa 4072 (2) on pages 285-286, DOI: 10.11646/zootaxa.4072.2.9, http://zenodo.org/record/264448