Agrilus pubinotus, Jendek, 2018

Jendek, Eduard, 2018, Revision of the Agrilus gratiosus species-group (Coleoptera, Buprestidae, Agrilinae), Zootaxa 4433 (3), pp. 478-490 : 485-486

Agrilus pubinotus sp. nov.

( Fig. 1E )

Description of holotype Size: 8.1 mm. BODY. Shape: cuneiform, Build: robust, Profile: convex, Color (dorsally): unicolored. HEAD. Medial impression: shallow. Vertex Medial impression: present, Sculpture elements: rugae, Sculpture aspect: arcuate. Eyes Size: subequal or larger than width of vertex (dorsal view), Lower margin: in line or below antennal socket, Median orbit: subparallel. Antennae Length: reach to about anterior pronotal angles, Serration: from antennomere 4. PRONOTUM. Shape: visually transverse, Sides: slightly arcuate, Sides (modification): sinuate before posterior angles, Maximal width: at posterior margin, Anterior margin: narrower than posterior. Anterior lobe Development: obvious, Shape: arcuate, Width: broad, Position: at level with anterior angles. Posterior angles Shape: acute, Apex: sharp. Disk Impressions: medial and lateral, Medial impression: entire, Lateral impressions (depth): deep, Lateral impressions (width): broad. 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: weak. Lateral carinae Interspace: narrow, Junction: present, Narrowest point: at posterior 1/5–1/4 of marginal carina. ELYTRA. Color: unicolored, Humeral carina: absent. Apices Arrangement: conjoint, Shape: arcuate, Modifications: margin obviously denticulate. Tomentum Pairs of tomentose spots: medial, apical. STERNUM. Prosternal lobe Size: large, Position to sternum: markedly declivous, Distal margin: arcuately emarginate, Emargination (depth): shallow, Emargination (width): wide. Prosternal process Width: wide, Shape: subparallel, Sides: straight, Angles: obtuse, Disc: flat, Projection (length): protruding distinctly beyond angles. Metasternum Metasternal projection: flat. ABDOMEN. Tomentum: present. Basal ventrite Modifications: without modifications. Pygidium Apical margin: arcuate. Sternal groove Extent: on all ventrites, Shape on apex of last ventrite: arcuate. LEGS. Metatarsus Length to metatibia: distinctly shorter. Metatarsomere 1 Length to following tarsomeres: longer than 2–3 but shorter than 2–4. GENITALIA. Ovipositor Shape: elongate.

Variability. Known only from the single female.

Diagnosis. The species is distinctive by dense white pubescence in lateral impressions and in posterior third of pronotum. Elytra without humeral pair of pubescent spots.

Type material. Type locality. Indonesia, East Nusa Tenggara, Sumba Island, 5 km West of Lewa . Type specimens. Holotype ♀ ( EJCB): “ Indonesia, Sumba Isl. , 5 km W of Lewa, 3–6.II.2001, S. Jákl leg.”.

Distribution. INDONESIA: Lesser Sunda (Sumba).

Etymology. The combination of Latin pubis (hair) and notum (dorsal exoskeleton of the thorax in an insect). It refers to the pubescent pronotum of the species.

Figures

FIGURES 1A–AF. Habitus of species of Agrilus gratiosus species–group. A: A. bacchus Kerremans, 1913, specimen from Taiwan, 8 mm; B: A. cultus sp. nov., holotype, 7.3 mm; C: A. oudomxai sp. nov., holotype, 6.7 mm; D: A. pluridens sp. nov., holotype, 6.2 mm; E: A. pubinotus sp. nov. holotype, 8.1 mm; F: A. signipes sp. nov. holotype, 7.7 mm.