Agrilus muralis, 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 : 349-350

Agrilus muralis sp. nov.

( Fig. 1A )

Description of holotype. Length: 4.1 mm. BODY. Shape: subparallel, Profile: convex, Color (dorsally): unicolored. HEAD. Modification: strongly convex Frons. Shape: markedly convex. Vertex. Shape: markedly convex, Medial impression: present, Sculpture elements: punctures, Sculpture density: sparse, Sculpture intensity: superficial. Eyes. Size: smaller than half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Length: reach to anterior pronotal angles, Width: antennomeres 5–10 obviously short and broad, Serration: from antennomere 4, Antennomeres 7–10: without petiole. PRONOTUM. Shape: visually transverse, Sides: slightly arcuate, Maximal width: at middle, Anterior margin: subequal to posterior. Anterior lobe. Development: moderate, Shape: subangulate, Width: broad, Position: at level with anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: lateral only, Lateral impressions (depth): deep, Lateral impressions (width): narrow. Prehumerus. Development: carinal, Shape: straight, Extent: to 1/3 of pronotal length, Anterior end: distant from lateral pronotal carina, Posterior end: joined with posterior pronotal angle or margin. Lateral carinae. Interspace: narrow, Convergence: subparallel, Junction: absent, Modifications: submarginal carina posteriorly obliterate. ELYTRA. Color: unicolored, Humeral carina: absent. Apices. Arrangement: conjoint, Shape: subtruncate, Truncation: transverse. Pubescence. Presence: without discernible pubescence. STERNUM. Prosternal lobe. Distal margin: arcuately emarginate, Emargination (width): wide. Prosternal process. Shape: markedly dilated, Angles: acute, Angles (tips): blunt, Disc: flat. Metasternum. Metasternal projection: impressed. ABDOMEN. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuately sinuate, Sinuosity (delimitation): angulate, Sinuosity (depth): markedly deep, Sinuosity (width): very narrow. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: subequal or longer than 2–4. GENITALIA. Ovipositor. Shape: elongate.

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

Diagnosis. The species is similar to A. convexicollis Redtenbacher, 1847 by the habitus, by the size, by the glabrous elytra, by the prominent pronotal lobe, by the dilated prosternal process, and by the impressed metasternal process. The new species can be distinguished by the blue color, by smaller eyes, which are smaller than half width of the vertex, and by the conjointly subtruncate elytral apices.

Type material. Type locality: China, Beijing Municipality, Xiaolongmen Natural Forest Park, 39°57'53”N, 115°26'07”E, altitude 1000-1300 m. Type specimens. Holotype ♀ ( EJCB): “ China, Beijing Municipality, Xiaolongmen Nat. Forest Park, 39°57'53”N, 115°26'07”E, 1000-1300m, 4-10.vi.2016, E. Jendek & O. Šauša leg.”.

Distribution. CHINA: Beijing.

Etymology. The specific epithet muralis is a Latin adjective meaning “of or belonging to a wall”. It refers to the fact that the species was collected by sweeping the vegetation from the local “Chinese wall”.

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).