Agrilus picturatus sp. n. Fig. 9 (habitus of holotype); Fig. 29 (aedeagus)

Description.

BODY. Size: 8.4 mm (Holotype).Shape: cuneiform, Build: slender, Color (dorsally): bicolored. HEAD. Medial impression: deep, Frons: Shape: flat, Vertex: Sculpture elements: rugae, Sculpture shape: semispherical or subparallel, Sculpture density: dense, Sculpture intensity: rough, Eyes: Size: moderate, Lower margin: in line or below with antennal socket, Medial orbit: converging ventrally, Antennae: Length: long, Width: slender, Serration: from antennomere 4, Antennomere 7-10 (shape): with obvious collum. PRONOTUM. Shape: visually square, Sides: slightly arcuate or straight, Maximal width: at middle, Anterior margin: subequal to posterior, Anterior lobe: Size: obvious, Shape: arcuate, Position: projecting beyond anterior angles, Posterior angles: Shape: rectangular, Apex: sharp, Disk: Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, Lateral impressions (intensity): deep, Prehumerus: Development: carinal, Shape: arcuate, Extent: to 1/3 of pronotal length, Anterior end: distant from lateral carina, Posterior end: joined with posterior angle or margin, Arc: moderate, Lateral carinae: Interspace: narrow, Convergence: moderately convergent, Junction: absent or present, Narrowest point: at posterior angles. ELYTRA. Color: dichromatic, Alternative color: apical portion, Humeral carina: absent, Apices: Arrangement: separate, Shape: arcuate, Modifications: margin obviously denticulate, Pubescence: Color: monochromatic, Extent: entire ornamental, rarely entire ornamental with indication of stripes. STERNUM. Prosternal lobe: Distal margin: arcuate, Prosternal process: Shape: dilated, rarely subparallel, Sides: straight, Angles: obtuse, Angles (tips): blunt, Disc: flat, Projection (extend): distinctly beyond angles, Mesosternum: Mesosternal projection: flat. ABDOMEN. Pygidium: Apical margin: with shortly projecting carina, Last ventrite: Disk: with medial carinula, Sternal groove: Extent: on all ventrites or on three apical ventrites, Shape on the apex of last ventrite: arcuate. LEGS. Metatarsus: Size to metatibia: about as long or longer than metatibia, Tarsomere 1: Size to following tarsomeres: subequal or longer than 2-4. GENITALIA. Aedeagus (Fig. 29): Symmetry: symmetric, Shape: widest in basal part, Modifications: apex of medial lobe sharply pointed.

Diagnosis.

From the very similar Agrilus pseudoambiguus sp. n., it differs by having the pronotum more elongate with sides almost straight; by having an obvious pronotal lobe and by the elytral apices being distinctly denticulate. See also Appendix.

Type locality.

Thailand, Sakon Nakhon province, Phu Phane National Park, 17°07'30"N, 104°01'E, altitude 350 m.

Type material.

Holotype (Fig. 9), ♂, (EJCB): "Thai, Sakon Nakhon, Phu Phane Nat.Park, 17°07'30"N, 104°01'E, 350m, ix.2000, local collector".

Adult occurrence:

9. Altitude range: 350 m.

Host plant.

Unknown.

Distribution.

THAILAND: Sakhon Nakhon.

Etymology.

The specific name is the Latin adjective picturatus (painted). It refers to the elytral pubescence of the species.