Anomala tentaculata, Wang, 2024

Wang, F. L., 2024, Two new species of the genus Anomala Samouelle, 1819 (Coleoptera: Scarabaeidae: Rutelinae) from China, Far Eastern Entomologist 495, pp. 22-28 : 22-25

Anomala tentaculata sp. n.

https://zoobank.org/NomenclaturalActs/ 81F78E07-BFC2-4132-B4EF-2BA3CB2B4381

Figs 1–7

TYPE MATERIAL. Holotype: ♂ ( MYNU), China: Yunnan Province / Yingjiang County, Xima / Hulukou , VI.2020 / Wei-Zong Yang leg. // HOLOTYPE // Anomala tentaculata / Wang det. 2023. Paratypes: 2 ♂ ( MYNU), same data as holotype .

DESCRIPTION. Holotype, male. Length: 9.0 mm; width: 5.9 mm. Body ovoid, moderately convex.

Coloration. Whole body color light brown except for abdominal ventrites I-IV reddish brown. Head, pronotum, scutellum, elytra, metasternum, and abdominal ventrites with weak metallic green shine. Legs predominantly light brown, with the distal portion of tarsomeres and protibia reddish brown, short setae of tarsus joints and tibiae dark brown.

Head. Clypeus broad trapezoidal, disc densely, shallowly punctate, anterior margin rounded, moderately reflexed. Frons with dense punctures, which are smaller on vertex. Ratio of interocular width/head width approximately 0.68. Length of antennal club shorter than combined length of antennomeres 2–6.

Pronotum approximately 1.78 times as wide as long; disc with moderately deep, moderately dense punctures; anterior angles subrectangular, posterior angles obtuse; sides of pronotum well curved, lateral margins with several long setae; anterior marginal line and posterior marginal line complete.

Scutellum triangular, with the sides moderately curved, posterior corner rounded, punctures resemble those on pronotum.

Elytra striate regularly, interval I (subsutural interval) double wider than costae interval 1 (sutural costae), with a row of deep longitudinal punctures in the middle of interval I, costae interval 1 narrower than the costae interval 2. Surface of elytra sparsely punctate. Epipleuron ridged prominently, broadest just after umbones, disappearing in posterior 1/4.

Propygidium with dense transverse punctures, posterior margin raised in the middle, with several long setae.

Pygidium triangular, slightly convex; surface with densely, transversely striate, striae partly confluent and reticulated, posterior margin with several long, erect setae.

Abdominal ventrites with moderately, densely punctate, punctures becoming gradually transverse punctures to the sides; each ventrite with several setae from side to side, posterior margin slightly smooth.

Legs. Protibia bidentate, apical tooth slightly prolonged, proximal tooth acute, apex sharp, inner spur positioned in opposite to proximal tooth. Mesotibia and metatibia slightly fusiform, end not widened, surface with short setae, setae on inner surface slightly long, metatibia and metatarsal nearly equal length. Protarsal and mesotarsal outer claw clefted.

Aedeagus as Figs 5–7 .

DIFFERENTIAL DIAGNOSIS. This species is distinct in the genus by the following combination of characters: body small, ovoid; the whole body color light brown with weak metallic green shine, but abdominal ventrites reddish brown; protarsal short and strong; each parameres with an elongate and tentacle-shape part, apex expanded and rounded. Among the species distributed in the China, Indochina, and Himalayan region, the new species is most similar and probably closely related to: A. agilis Arrow, 1917 ; A. ardoini Frey, 1971 ; A. aureoflava Arrow, 1917 ; A. aurora Arrow, 1912 ; A. ciliatipes Arrow, 1917 ; A. dolichophalla Prokofiev, 2015 ; A. gracilenta Reitter, 1903 ; A. hamuliphalla Prokofiev, 2021 ; A. nepalensis Machatschke, 1966 ; A. nervulata Paulian, 1959 ; A. nigricollis Lin, 1992 ; A. nigripes Nonfried, 1892 ; A. obscurata Reitter, 1903 ; A. palleola (Gyllenhal, 1817) ; A. potanini Medvedev, 1949 ; A. puncticlypea Lin, 1992 ; and A. variegata Hope, 1831 . Anomala tentaculata sp. n. can be distinguished from A. agilis ( Lin, 1981: fig 3), A. ardoini ( Frey, 1971: fig 5), A. aureoflava ( Arrow, 1917: Plate III, figs 32 & 33), A. dolichophalla ( Prokofiev, 2015: figs 4–6), A. hamuliphalla (Prokofiev, 2021: figs 3–5), A. nepalensis ( Machatschke, 1966: figs 6 & 7), A. nervulata ( Paulian, 1959: figs 211–213), A. nigricollis ( Lin, 1992: fig 3), A. palleola ( Prokofiev, 2015: fig 9), A. potanini ( Prokofiev, 2015: fig 10), A. puncticlypea ( Lin, 1992: fig 4), and A. variegate ( Arrow, 1917: Plate IV, fig 9) by the shape of parameres. This new species is different from A. aurora by body smaller, body without dark patch or spot, from A. ciliatipes by legs short and claw-joint without long bristles, from A. gracilenta (female holotype) by whole body color light yellow, without dark patch on pronotum, from A. nigripes by body smaller, elytra striate distinctly, all tarsus light brown, from A. obscurata by body shape more rounded, elytra color light yellow ( Arrow, 1917; Nonfried, 1892; Reitter, 1903).

ETYMOLOGY. The name refers to each parameres with an elongate and tentacle-shape part.

DISTRIBUTION. Known only from its type locality in southwestern Yunnan province, China .

Figures

Figs 1–7. Anomala tentaculata sp. n., holotype, male: 1–3, habitus; 4, pygidium; 5–7, male genitalia. 1, 5 – dorsal view; 2, 6 – ventral view; 3, 7 – lateral view from left.