Agrilus bicoloripennis Jendek 2017, sp. nov.

Agrilus bicoloripennis sp. nov.

(Figs. 1C, 5B)

Description of holotype. Size: 4.1 mm. Body. Shape: cuneiform; Color (dorsally): bicolored. Head. Modification: strongly convex; Medial impression: absent; Epistoma: raised above frons. Frons: Shape: markedly convex. Vertex: Shape: flat; Sculpture elements: rugae; Sculpture aspect: arcuate; Sculpture intensity: rough. Eyes: Size: larger than half width but smaller than width of vertex (dorsal view); Shape: markedly protruding head outline; Lower margin: in line or below antennal socket; Median orbit: subparallel. Antennae: Serration: from antennomere 4. Pronotum. Shape: visually transverse; Sides: slightly arcuate; Maximal width: at posterior margin; Anterior margin: narrower than posterior. Anterior lobe: Development: obvious; Shape: arcuate; Width: broad; Position: projecting beyond anterior angles. Posterior angles: Shape: rectangular; Apex: sharp. Disk: Convexity: strongly convex; Impressions: lateral only; Lateral impressions (depth): shallow; Lateral impression (width): narrow. Prehumerus: Development: carinal; Shape: arcuate; Extent: to 1/2 of pronotal length; Anterior end: distant from lateral carina; Posterior end: joined with posterior angle or margin; Arc: moderate. Lateral carinae: Convergence: moderate; Junction: present; Narrowest point: at posterior 1/5–1/4 of marginal carina. Scutellum: Size: robust. Elytra. Color: bicolored; Alternative color: perisutural drop; Humeral carina: absent. Apices: Arrangement: conjoint; Shape: arcuate. Pubescence: Color: unicolored; Character: homogenous; Extent: distal only; Distal (shape): apical. Sternum. Pubescence: Strip of erect pubescence: absent. Prosternal lobe: Distal margin: arcuately emarginate; Emargination (depth): shallow. Prosternal process: Shape: subparallel; Sides: straight; Angles: obtuse; Disc: flat; Projection (length): protruding distinctly beyond angles. Metasternum: Metasternal projection: flat. Abdomen. Tomentum: absent. Pygidium: Apical margin: arcuate. Last ventrite: Disk: impressed. Sternal groove: Extent: on three apical ventrites; Shape on apex of last ventrite: arcuately sinuate; Sinuosity (delimitation): angulate; Sinuosity (depth): markedly deep; Sinuosity (width): markedly wide. Legs. Metatarsus: Length to metatibia: distinctly shorter. Tarsomere 1: Length to following tarsomeres: shorter or subequal to 2–3. Genitalia. Aedeagus (Fig. 5B): Symmetry: symmetric; Shape: widest in apical part; Modifications: apex of medial lobe sharply pointed.

Variability. Unknown. Sexual dimorphism. The male shows no apparent adaptations, except for impression at the last ventrite. The female is unknown.

Diagnosis. The species is similar to A. chloros sp. nov. by having dorsal color bright–green and by narrow apical third of elytra, but it differs from it by shape of aedeagus (Fig. 5B) and by having elytra glabrous and unicolored.

Type material. Type locality: Indonesia, Borneo, Kalimantan Selatan, Meratus Mountains, Loksado, 900 m, [02°46'12”S, 115°30'05”E]. Type specimens. Holotype ♂ (FWPC): “ Indonesia, Borneo Isl., South Kalimantan prov., Meratus Mts., 900 m, Loksado, 8–15.xi.1997, S. Jákl leg.”

Distribution. Indonesia (Kalimantan Selatan).

Etymology. The specific epithet is derived from the adjective bicolor (having two colors) and the Greek noun penna (wing). It refers to the strikingly bicolored elytra of the species.

Remarks. Known only from the holotype.