Agrilus tomentipennis 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 : 84-86

Agrilus tomentipennis Jendek & Chamorro sp. n. Figs 72-80

Diagnosis.

Agrilus tomentipennis from Laos is very similar to Agrilus planipennis . Both species have a small scutellum; identical marginal and submarginal carinae; a pygidial spine; and highly sinuate posterior margin of the metatibiae. While many of the differences between these two species may be considered mostly continuous, such as larger size ( Agrilus tomentipennis ), larger and more pronounced prehumeral carina ( Agrilus tomentipennis ); and deeper frontal concavity ( Agrilus tomentipennis ), two additional features set Agrilus tomentipennis apart from Agrilus planipennis : the presence of a row of perisutural stripes of white elytral pubescence with indication of a preapical tomentose spot, and a more rectangular scutellum in Agrilus tomentipennis (diamond-shaped in Agrilus planipennis ).

Description.

BODY: Size: 14.0-14.3 mm (Holotype 14.3 mm); Shape: cuneiform; Build: robust.

HEAD: Shape: flat; Medial impression: present, Depth: deep; Extent: vertex and frons; Epistoma: with raised upper margin; Frons: Shape: flat; Outline: not protruding from head outline; Vertex:Outline: not protruding from head outline; Sculpture: Predominant: punctures; Aspect: semispherical, Density: sparse, Intensity: rough; Eyes: Size: large, Shape: protruding from head outline; Lower margin: below or in line with antennal socket; Antennae: Length: moderate (females); Shape: slender.

PRONOTUM: Shape: visually square to transverse; Sides: arcuate; Maximal width: at middle; Anterior margin: narrower than posterior; Anterior lobe: moderate; Shape: arcuate; Position: at level with anterior pronotal angles; Posterior angles: Apex: blunt, Shape: obtuse; Disk: Convexity: flat, without obvious tomentose spots; Disk impressions: Presence: medial and lateral; Medial impression (shape): anteromedial and posteromedial; Lateral impression: Depth: deep; Width: narrow; Prehumerus: Development: carinal; Shape: arcuate; Extent: to third of pronotal length; Anterior end: distant from pronotal angle or margin, Posterior end: joining posterior pronotal margin; Marginal and submarginal carinae:Interspace: narrow;Convergence: strong; Junction: present; Scutellum: Size: rudimentary, Disk: not impressed, Scutellar carina: obsolete.

ELYTRA: Color: unicolored; Humeral carina: absent; Apices: Arrangement: separate; Shape: arcuate; Elytral pubescence: perisutural stripes; Color: unicolored; Character: with spots of denser pubescence. STERNUM: Prosternallobe: moderate; Anterior margin: arcuately emarginate; Depth: deep; Width: wide. Prosternal process: Size: moderatee; Shape: narrowed or subparallel; Sides: straight; Angles: obtuse; Disk: flat; Metasternalprojection: flat.

ABDOMEN: Sternal groove: Shape on apex of last ventrite: arcuate, Pygidium: extended into long spine.

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

GENITALIA: Ovipositor: elongate.

Type locality.

Northeastern Laos, Xieng Khouang province, 45 km Eastern of Phonsavan: Ban Namseung.

Type specimens.

Holotype ♀, (EJCB): "LAOS-NE, Xieng Khouang prov., 45 km (by road) E of Phonsavan: ~1000m Ban Namseung, April 2008, Ch. Keomaravong leg". Paratypes: 1 ♀, (USNM): "LAOS-NE, Xieng Khouang prov., 45 km (by road) E. of Phonsavan: ~1000m Ban Namseung, April 2008, Ch. Keomaravong leg". 1 ♀, (NMPC): "LAOS-NE, Xieng Khouang prov., 45 km (by road) E. of Phonsavan: ~1000m Ban Namseung, vi.2011, Ch. Keomaravong leg".

Distribution.

Laos: Xieng Khouang Province.

Etymology.

The specific epithet is a combination of Latin nouns tomentum (woolly hairs) and pennae (elytra). The name alludes to the presence of white pubescence on the elytra.

Remarks.

Jendek and Grebennikov (2011) cited specimens of this taxon in examined material as Agrilus planipennis .