Agrilus jankae, 2019

Jendek, Eduard & Grebennikov, Vasily V., 2019, Twenty more new species of Agrilus (Coleoptera: Buprestidae: Agrilinae) from the Oriental region, Zootaxa 4564 (2), pp. 449-469 : 453

Agrilus jankae sp. nov.

( Fig. 3B )

Description of holotype. Body length: 8.9 mm. BODY. Shape: fusiform, Build: robust, Profile: convex. HEAD. Size: very large, Medial impression: deep. Vertex. Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes. Size: smaller than half width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae. Length: reach anterior pronotal angles, Serration: from antennomere 4. PRONOTUM. Shape: visually elongate or square, Sides: slightly arcuate, Maximal width: at posterior margin, Anterior margin: narrower than posterior. Anterior lobe. Development: moderate, Width: broad, Position: projecting beyond anterior angles. Posterior angles. Shape: obtuse, Apex: sharp. Disk. Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): shallow, Lateral impressions (width): narrow. Prehumerus. Development: absent. Lateral carinae. Convergence: moderate, Junction: present, Narrowest point: at posterior 1/ 3 of marginal carina, Modifications: submarginal carina anteriorly obliterate. ELYTRA. Humeral carina: absent.

Apices. Arrangement: separate, Shape: arcuate. Pubescence. Extent: proximal and distal, Proximal (shape): quadrangular, Distal (shape): apical. STERNUM. Prosternal lobe. Size: narrow, Distal margin: subtruncate. Prosternal process. Shape: subparallel, Sides: straight, Angles: obtuse, Angles (tips): sharp, Disc: flat, Projection (length): protruding distinctly beyond angles. Metasternum. Metasternal projection: flat. ABDOMEN. Pygidium. Apical margin: arcuate. Sternal groove. Shape on apex of last ventrite: arcuate. LEGS. Metatarsus. Length to metatibia: distinctly shorter. Metatarsomere 1. Length to following tarsomeres: shorter or subequal to 2–3. GENITALIA. Ovipositor. Shape: square (uritiform).

Variability. The species is known only from females. See also Remarks.

Diagnosis. Agrilus jankae sp. nov. is easily distinguishable within the genus. It resembles species from the A. angulatus species–group by having similar elytral pubescence. The new species is distinctive with very short antennae, only reaching the anterior pronotal angles, by the obviously elongate pronotum with a deep medial sulcus, by the lack of prehumerus, and by the short tarsi.

Type material. Type locality: Indonesia , West Sumatra , ca 20 km North Payakumbuh, Harau Valley, atitude 500–800 m. Type specimens. Holotype ♀ ( EJCB): “Indonesia, W Sumatra, Harau Valley, 500–800 m, ca 20 km N Payakumbuh, v.2004, S. Jákl leg.”. Other types. SINGAPORE: “Singapore, D. H. Murphy, 10.iv.1984, Upper Pierce pipeline” 1 paratype ( ZRC).

Distribution. INDONESIA: West Sumatra; SINGAPORE.

Etymology. The specific name is dedicated to my wife Janka.

Remarks. In time of description, the paratype from ZRC was not available and its size is not included in Variability.

Figures

FIGURES 3A–3E. Holotypes of Agrilus, habitus in dorsal view. 3A, A. draco sp. nov. (17.2 mm); 3B, A. jankae sp. nov. (8.9 mm); 3C, A. cicadelloides sp. nov. (6.8 mm); 3D, A. hik sp. nov. (5.5 mm); 3E, A. yoa sp. nov. (4.3 mm).