Agrilus baiyangling, Jendek & Nakládal, 2019

Jendek, Eduard & Nakládal, Oto, 2019, Nine new Agrilus (Coleoptera: Buprestidae, Agrilini) from Palaearctic and Oriental regions, Zootaxa 4560 (2), pp. 345-354 : 346-347

Agrilus baiyangling sp. nov.

( Figs. 1D , 2F )

Description of holotype. Length: 7.3 mm. BODY. Shape: subparallel, Posterior tapering part: short with broad apex, Color (dorsally): bicolored. HEAD. Vertex. Medial impression: present, Sculpture elements: rugae, Sculpture aspect: subparallel, Sculpture density: dense, Sculpture intensity: rough. Eyes. Size: subequal to half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: converging ventrally.

Antennae. Serration: from antennomere 4. PRONOTUM. Shape: visually transverse, Sides: markedly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: moderate, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: acute, Apex: sharp. Disk. Impressions: lateral only, Lateral impressions (width): narrow. Prehumerus. Development: carinal, Shape: arcuate, Extent: to 1/3 of pronotal length, Anterior end: distant from lateral pronotal carina, Arc: weak. Lateral carinae. Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: separate, Shape: arcuate. Pubescence. Presence: without discernible pubescence. STERNUM. Pubescence. Strip of erect pubescence: extending from prosternal lobe to apex of prosternal process. Prosternal lobe. Distal margin: arcuately emarginate, Emargination (depth): deep, Emargination (width): narrow. Prosternal process. Shape: narrowed, Sides: straight, Angles: absent, Disc: impressed. Metasternum. Metasternal projection: flat. ABDOMEN. Pygidium. Apical margin: arcuate. Last ventrite. Shape: with narrow apex,. Disk: with medial carinula. Sternal groove. Shape on apex of last ventrite: arcuate. LEGS. Metatarsus. Length to metatibia: somewhat shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA.

Aedeagus. Symmetry: symmetric, Shape: widest in apical part.

Variability. The species is known only from the male holotype.

Diagnosis. The species resembles the common Palaearctic species A. viridis (Linné, 1758) in the habitus and glabrous elytra, and A. sinuatus (Olivier, 1790) in the color. It can be distinguished by smaller eyes, by obviously wide elytral apices, and by the shape of aedeagus ( Fig. 2F ).

Type material. Type locality: China, Shaanxi, Baiyangling env., 33°30'07”N, 108°31'34”E, altitude 1800– 1900 m. Type specimens. Holotype ♂ ( EJCB): “ China, Shaanxi, Baiyangling env., 33°30'07”N, 108°31'34”E, 1800-1900m, 18.vi.2016, E. Jendek & O. Šauša leg. \ swept from Salix ”.

Distribution. CHINA. Shaanxi.

Host plant. Adult host: Salix .

Etymology. The specific name is a noun in apposition and refers to the type locality.

Figures

FIGURES 1A–1F. Habitus of Agrilus. 1A, A. muralis sp. nov., holotype (4.1 mm); 1B, A. mus sp. nov., holotype (6.1 mm); 1C, A. gorgan sp. nov., holotype (7.8 mm); 1D, A. baiyangling sp. nov. holotype (7.3 mm); 1E, A. uzala sp. nov., holotype (5.3 mm); 1F, A. ressli sp. nov., holotype (4.7 mm).

FIGURES 2A–2J. Habitus and aedeagi of Agrilus. Habitus of: 2A, A. iranopecirkai sp. nov., holotype (5.5 mm); 2B, A. baiocchii sp. nov., holotype (4.4 mm); 2C, A. graminis persicus ssp. nov., holotype (7.9 mm). Aedeagus of: 2D, A. mus sp. nov., holotype; 2E, A. gorgan sp. nov., holotype; 2F, A. baiyangling sp. nov., holotype; 2G, A. ressli sp. nov., holotype; 2H, A. iranopecirkai sp. nov., holotype; 2I, A. baiocchii sp. nov., holotype; 2J, A. graminis persicus ssp. nov., holotype.