Anomala asaitoae, Zorn & Kobayashi & Wada, 2017

Zorn, Carsten, Kobayashi, Hirokazu & Wada, Kaoru, 2017, Notes on the genus Anomala SAMOUELLE, 1819 (Coleoptera, Scarabaeidae, Rutelinae) in Vietnam and neighboring regions: eight new species and faunistic records, Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 325-352 : 334-335

publication ID	https://doi.org/ 10.21248/contrib.entomol.67.2.325-352
publication LSID	lsid:zoobank.org:pub:F2CE9642-9537-46FF-BA3F-5D4148AC1A0B
persistent identifier	https://treatment.plazi.org/id/829A3E69-938F-4F9C-998A-C4FE117C5740
taxon LSID	lsid:zoobank.org:act:829A3E69-938F-4F9C-998A-C4FE117C5740
treatment provided by	Felipe
scientific name	Anomala asaitoae
status	sp. nov.

Treatment

Anomala asaitoae spec. nov.

urn:lsid:zoobank.org:act:829A3E69-938F-4F9C-998A-C4FE117C5740

( Figs 7, 8 View Figs 1–9 , 16 View Figs 14–17 )

Type series: Holotype: , Truong Yen, Son La, VIET- NAM, 1 v, 1995 A. Saito leg. ( NSMT) . Paratypes: 1 , 2 , the same data as for the holotype ( HKPC) .

Description: Body shape elongate ovoid, convex; body length: 14.0-16.0 mm, width: 7.0- 8.3 mm.

Color. Dorsal surface except antennae black; head and legs with faint bluish-green metallic luster; pronotum, elytra and pygidium with iridescent shine, antennal club dark brown, footstalk reddish brown; elytra with a small orange spot before the middle on each second primary costa; ventral face black with greenish shine and iridescent reflections.

Head with sparse erect pale yellow setae (ca. 0.4 mm in length) along eyes; interocular distance equals 0.69 times the maximum transverse head width. Antennal club 0.8 times as long as footstalk; antennomeres 8 and 9 somewhat thickened. Clypeus subtrapezoidal with broadly rounded corners and curved anterior margin; surface rugoso-punctate; anterior margin distinctly reflexed; fronto-clypeal suture weakly sinuate. Frons confluently rugoso-punctate in the middle; the punctures becoming sparser and separate laterad and posteriad. Vertex with sparse, small, somewhat transverse punctures.

Pronotum 1.6 times as wide as long; sides evenly arcuate, subparallel basad, convergent anteriorly; widest at base; lateral margin hidden in dorsal view before the middle by a small protuberance; lateral marginal line almost reaching the hind angles; basal marginal line very weakly indicated medially of humerus; front angles produced and acute, hind angles obtuse, rounded off; surface evenly covered with transverse moderately large punctures; punctures larger and partly confluent towards the front angles, somewhat smaller on disc; each puncture bearing a microscopic seta; with erect yellow setae (0.35-0.4 mm in length) along lateral margin.

Scutellum 1.6 times as wide as long, apex rather acute; with irregular, transverse punctures.

Elytra regularly striate-sulcate; primary costae slightly more convex than interstices; 5th primary costa narrow and slightly more elevated than the others; striae not marked by a regular row of punctures; entire surface covered with large, transverse, microscopic-seta-bearing punctures, concentrating in the sulci, leaving out the ridges of primary costae and being sparser in the interstices; punctures adjacent to each other, partly coalescing and forming small transverse striae; humerus with rather simple punctation; epipleura strongly developed, abruptly ending at the level of second abdominal ventrite; marginal membrane starting approximately at level of middle of metacoxa.

Pygidium triangular, rounded at apex, somewhat tumid; disc with reticulate striolation which is arranged concentrically around the tumidity; with evenly distributed microscopic setae; longer sparse yellow setae (0.25- 0.75 mm in length) in apical and baso-lateral portions.

Mesoventrite very narrow and somewhat concave between the approximated mesocoxae.

Metaventrite with dense, transversely confluent punctures at the sides, sparsely punctate in the middle; with pale yellow setae (0.13-0.5 mm in length) at the sides which become sparser and shorter in the middle.

Abdominal ventrites with very transverse punctures which are partly confluent at the sides and sparser in the middle; each puncture with microscopic seta; each ventrite with a transverse row of semierect yellow setae (0.13-0.63 mm in length); sides of first abdominal ventrite slightly carinate.

Legs slender and long; protibia bidentate; terminal tooth prolonged and acute at apex in male; protarsal segment 5 thickened, ventrally with a little tooth approximately in the middle and a deep concavity in the apical half; inner protarsal claw and outer mesotarsal claw apically incised; the upper branch of the inner protarsal claw small and slender, the lower branch broad, somewhat enlarged ventrally with little tooth; the upper branch of outer mesotarsal claw slightly more slender than the lower one.

Females: Body shape stouter; antennal club not thickened; pronotum broader, more convex; lateral carina of elytra broadened behind middle; pygidium less tumid; terminal tooth of protibia spatulate; inner protarsal claw slender.

Diagnosis: Like the previous species, A. asaitoae belongs to the group containing A. spiloptera , recognizable by the peculiar dorsal connective membrane between the parameres (for details see “Diagnosis” of A. recordata ). Within this group, A. asaitoae is differentiated by the enlarged two last antennal segments in males, the carinate sides of the first abdominal ventrite, the enlarged lateral margin of the elytra, the small body size and the unique, asymmetric shape of the aedeagus with spine-like apices of the parameres. The ventral plate has no apical process (fig. 16). None of the other species related to A. spiloptera has a similar combination of characters.

Etymology: The new species is named after Dr. Akiko Saito, entomologist at the Natural History Museum and Institute, Chiba, who collected the holotype of the new species.