Agrilus nebulosus, Jendek, Eduard, 2013

Jendek, Eduard, 2013, Revision of the Agrilus occipitalis species-group (Coleoptera, Buprestidae, Agrilini), ZooKeys 256, pp. 35-79 : 45

publication ID

https://dx.doi.org/10.3897/zookeys.256.4272

persistent identifier

https://treatment.plazi.org/id/BABEA6C4-0EAD-0363-ABC9-21D5D1A303A1

treatment provided by

ZooKeys by Pensoft

scientific name

Agrilus nebulosus
status

sp. n.

Agrilus nebulosus   ZBK sp. n. Fig. 13 (habitus of holotype); Fig. 33 (aedeagus)

Description.

BODY. Size: 6.4-7.5 mm (Holotype 6.5 mm).Shape: cuneiform, Posterior tapering part: long with narrow apex, Color (dorsally): unicolored, Sexual modifications in male: not apparent. HEAD. Medial impression: deep, rarely shallow, Epistoma: raised above frons, Vertex: Sculpture elements: rugae, Sculpture density: dense, 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. PRONOTUM. Shape: transverse, Sides: slightly arcuate, Maximal width: at anterior margin, Anterior margin: wider than posterior, Anterior lobe: Size: moderate, Shape: arcuate, Position: at level with anterior angles, Posterior angles: Shape: obtuse or rectangular, Apex: sharp, Disk: Impressions: medial and lateral, Medial impression: anteromedial and posteromedial, 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 or weak, Lateral carinae: Convergence: moderately convergent, Junction: present, Narrowest point: at posterior 1/5-1/4 of marginal carina. ELYTRA. Color: monochromatic, Humeral carina: absent, Apices: Arrangement: separate, Shape: arcuate, Pubescence: Color: monochromatic, Extent: entire ornamental, rarely entire ornamental with indication of stripes. STERNUM. Prosternal lobe: Size: large, Distal margin: arcuate, Prosternal process: Size: wide, Shape: dilated, rarely subparallel, Sides: straight, Angles: acute, Angles (tips): blunt, Disc: flat, Projection (extend): distinctly beyond angles, Mesosternum: Mesosternal projection: flat. ABDOMEN. Tomentum: absent, Pygidium: Apical margin: arcuate, rarely angulate, Sternal groove: Extent: on all ventrites or on three apical ventrites, Shape on the apex of last ventrite: arcuate, rarely arcuately sinuate, Emargination (deepness): very shallow. LEGS. Metatarsus: Size to metatibia: distinctly shorter than metatibia, Tarsomere 1: Size to following tarsomeres: longer than 2-3 but shorter than 2-4 or subequal or longer than 2-4. GENITALIA. Aedeagus (Fig. 33): Symmetry: symmetric, Shape: widest in basal part, rarely subparallel, Modifications: apex of medial lobe sharply pointed, Ovipositor: Shape: markedly elongate.

Diagnosis.

From the close Agrilus auriventris , it can be distinguished by the generally smaller size and slender body; by the pygidium arcuate apically and by the the groove on the apex of last ventrite arcuate (rarely sinuate). See also Appendix.

Type locality.

North Vietnam, 21°35N, 106°30E, 52 km southwest of Lang Son, altitude 370 m.

Type material.

Holotype (Fig. 13), ♂, (EJCB): "N Vietnam, 21°35N, 106°30E, 52 km SW of Lang Son, 27.iv.-6.v.1996, 370 m, Dembický and Pacholátko leg.". Paratypes:1 ♂ paratype, 7 ♀ paratypes (EJCB) from the same locality as holotype.

Adult occurrence:

5-6. Altitude range: 300 m.

Host plant.

Unknown.

Distribution.

VIETNAM:Lang Son.

Etymology.

The specific name is Latin adjective nebulosus (misty, hazy, indefinite, obscure). It refers to the faint ornamental elytral pubescence of the species.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Buprestidae

Genus

Agrilus