Agrilus oidema

Jendek, Eduard, 2017, Revision of the Agrilus humilis species-group (Coleoptera: Buprestidae: Agrilini) with description of thirteen new species from Southeastern Asia, Zootaxa 4363 (2), pp. 249-271: 265-266

publication ID

https://doi.org/10.11646/zootaxa.4363.2.5

publication LSID

lsid:zoobank.org:pub:2466B9D6-714A-4A0C-9D83-A7662C58A9D8

persistent identifier

http://treatment.plazi.org/id/617E2837-FF9C-FFD0-FF0E-E20EC3FD9517

treatment provided by

Plazi

scientific name

Agrilus oidema
status

sp. nov.

Agrilus oidema  sp. nov.

( Figs. 2DView FIGURE 2, 5JView FIGURE5)

Description of holotype. Size: 3.8 mm. Body. Shape: cuneiform; Build: robust; Profile: convex; Color (dorsally): bicolored. Head. Size: very large; Medial impression: absent. Frons: Shape: flat. Vertex: Sculpture elements: rugae; Sculpture aspect: arcuate; Sculpture density: dense; 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: markedly arcuate; Maximal width: at middle; Anterior margin: narrower than posterior. Anterior lobe: Development: obvious; Shape: arcuate; Width: broad; Position: projecting beyond anterior angles. Posterior angles: Shape: obtuse; Apex: sharp. Disk: Convexity: strongly convex; Impressions: lateral only; Lateral impressions (depth): shallow; Lateral impression (width): narrow. Prehumerus: Development: carinal; Shape: arcuate; Extent: to 1/3 of pronotal length; Anterior end: distant from lateral carina; Posterior end: joined with posterior angle or margin; Arc: obvious. Lateral carinae: Interspace: broad; Convergence: strong; Narrowest point: at posterior 1/5–1/4 of marginal carina. Scutellum: Size: robust. Elytra. Color: unicolored; Humeral carina: absent. Apices: Arrangement: conjoint; Shape: subtruncate; Truncation: oblique with projecting sutural angle. Pubescence: Color: unicolored; Extent: proximal and distal; Proximal (shape): like V, X, Y, T; Distal (shape): preapical. Sternum. Prosternal lobe: Size: large; Distal margin: arcuately emarginate; Emargination (depth): deep; Emargination (width): wide. Prosternal process: Shape: subparallel; Sides: straight; Angles: obtuse; Angles (tips): blunt; Disc: flat; Projection (length): protruding distinctly beyond angles. Metasternum: Metasternal projection: flat. Abdomen. Basal ventrite: Modifications: with tubercle(s). Pygidium: Apical margin: arcuate. Last ventrite: Disk: impressed. Sternal groove: Extent: on apical ventrite; 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. 5JView FIGURE5): Symmetry: symmetric; Shape: subparallel; Modifications: apex of medial lobe sharply pointed.

Variability. Unknown. Sexual dimorphism. The male has head, pronotum and legs golden –orange; ventro – basal margin of metafemora is armed with comb of longer setae; apex of metatibia has cluster of long setae and last ventrite is deeply impressed. The female is unknown.

Diagnosis. Agrilus oidema  sp. nov. differs from the homomorphic A. microtatus  by characters given in the key. Aedeagus ( Fig. 5JView FIGURE5).

Type material. Type locality: Philippines, Negros Oriental, Negros Island, Cuernos Mountains [09°14'38”N, 123°10'36”E]. Type specimens. Holotype ♂ ( FWPC): “ Cuernos Mts. , Negros, Baker”.GoogleMaps 

Distribution. Philippines (Negros Island).

Etymology. The specific name is the Greek noun oidēma  from oidein (to swell) in apposition. It refers to expanded metafemora of the species.

Remarks. Known only from the holotype.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Buprestidae

Genus

Agrilus