Agrilus spineus Jendek & Chamorro

Jendek, Eduard & Chamorro, Maria Lourdes, 2012, Six new species of Agrilus Curtis, 1825 (Coleoptera, Buprestidae, Agrilinae) from the Oriental Region related to the emerald ash borer, A. planipennis Fairmaire, 1888 and synonymy of Sarawakita Obenberger, 1924, ZooKeys 239, pp. 71-94 : 82-84

Agrilus spineus Jendek & Chamorro sp. n. Figs 6171

Diagnosis.

This species is similar to Agrilus piliventris Deyrolle, 1864 in the transverse shape of the pronotum; the ventral and pleural abdominal regions completely covered by golden-yellow pubescence; the scutellum subrectangular with prominent carina; the scutellar disk and carina impressed; the scutellar projection enlarged; and the elytral apices spinose. Agrilus spineus can be distinguished from Agrilus piliventris and by the metallic black pronotum, greenish-black elytra with minute golden dorsal pubescence; and the elytral apical spines turned medially.

Description.

BODY: Size 9 mm (Holotype); Shape: cuneiform; Build: robust.

HEAD: Medial impression: present, Extent: frons; Epistoma: with raised upper margin; Frons: Outline: not protruding from head outline; Vertex: Outline: not protruding from head outline; Sculpture: punctures; Aspect: semispherical; Density: sparse; Intensity: rough; Eyes: Size: large; Shape: protruding from head outline; Lower margin: below antennal socket; Antennae: Length: short (female); Shape: slender.

PRONOTUM: Shape: transverse; Sides: arcuate; Anterior margin: narrower than posterior; Anterior lobe: moderate; Shape: arcuate; Position: at level with anterior pronotal angles; Posterior angles: Apex: blunt, Shape: obtuse; Disk: flat; Disk impressions: Presence: medial and lateral; Medialimpression: Shape: anteromedial and posteromedial; Lateralimpressions: Width: narrow; depth: deep; Prehumerus: Development: carinal; Shape: arcuate; Extent: to third of pronotal length; Anterior end: joining with pronotal marginal carina, Posteriorend: distant from pronotal a ngle or margin; Marginal and submarginal carinae: Interspace: narrow; Convergence: strongly convergent; Junction: present; Scutellum: Size: moderate; Disk: impressed; Marginal carina: present or obsolete.

ELYTRA: Color: unicolored; Humeral carina: absent; Apices: Arrangement: separate; Width: narrow; Shape: spinose; Position of dominant cusp or spine: medial; Elytral pubescence: entire.

STERNUM: Prosternallobe: Size: moderate; Anterior margin: angulately emarginate; Emargination: Depth: deep; Width: wide; Prosternal process: Size: moderate; Shape: subparallel; Sides: straight; Angles: obtuse; Disk: flat; Metasternal projection: flat.

ABDOMEN: Sternal groove: Shape on apex of last ventrite: arcuate; Pygidium: Apical margin: arcuate.

LEGS: Metatarsus: about as long as mesotarsus; Metatarsomere 1: subequal to or longer than 2-4 combined.

GENITALIA: Ovipositor: elongate.

Type locality.

Malaysia, Borneo Island, Sarawak State, Bako National Park.

Type specimens.

Holotype, ♀, (EJCB): "Borneo, Sarawak, Bako NP, 5.5.2000, M. Vyklický lgt.".

Distribution.

Malaysia: Sarawak state

Etymology.

The specific name spineus is the Latin adjective spineus, -a, -um (thorny). This refers to the spines on the elytral apices.