Anomala wutaiensis Zhao & Zorn, 2022

Zhao, Ming-Zhi & Zorn, Carsten, 2022, Contribution to the genus Anomala Samouelle, 1819 (Coleoptera: Scarabaeidae Rutelinae) of China and adjacent regions. Part II: six new species from Taiwan and Hainan, Zootaxa 5168 (2), pp. 175-195 : 182-184

Anomala wutaiensis Zhao & Zorn , new species [Ẩ台异fflŵoi / ÃAE條ŵff]

( Figs. 5 , 8C–D , 9D–G )

Type material. Holotype: ♂ ( NMNS), Taiwan Island, Pingtung , Wutai Township [= ÃAEď], Ali [= Kae], 1300 m, 2.VI.2014, Yu-Feng Hsu leg. Paratypes: 1♂, 1♀ ( ZMPC), Taiwan Island, [Pingtung], Wutai , 120.74E 22.74N 1040 m, light trap, 2018-V-5, Hai-Tian Song leg. ; 4♂♂, 2♀♀ ( ZMPC), Wutai , light trap, 2018-V-12, Hai-Tian Song leg ; 1♀ ( CCPC), Wutai , Shenshan [= Ñ山], 1998-IV-30, Chang-Chin Chen leg.

Description. Holotype male ( Figs. 5A–C , 8C , 9D–G ). Body length: 14.0 mm, greatest width: 7.3 mm.

General appearance. Body shape elongated ovoid, weakly convex. Entirely reddish brown, color darkened at head and pronotum, as well as sides of scutellum; sutural line of elytra black; joints of tibiae and femora, apices of tarsomeres dark brown.

Head ( Fig. 8C ). Clypeus subtrapezoidal, anterior corner broadly rounded; anterior margin somewhat rounded and strongly reflexed; surface with dense small punctures. Frontoclypeal suture distinct. An inverted triangular area at anterior half of frons rugopunctate, other portions of frons and vertex with dense small punctures. Antennal club longer than antennomeres 2–6 combined. Inner margin of eye with two moderately long setae.

Pronotum. Sides gently arched and convergent anteriad. Anterior angle acute and protruding, posterior angle round. Basal marginal line interrupted before scutellum, other marginal lines complete. With dense annulated small punctures, punctures somewhat coalescent near lateral margins, a narrow longitudinal line at posterior third impunctate. Lateral margin with several long setae.

Scutellum. Nearly triangular. Margins with polished appearance, disc with moderately dense large punctures. Disc with a few semierect moderately long setae.

Elytra. Intervals convex; strial punctures dense to very dense, annulated and large, punctures of secondary striae irregular in spaces; the whole surface with scattered minute punctures. Interstices I to III each with a secondary stria; interstice I (the subsutural interstice) broadest, with secondary stria doubled in basal third; all secondary striae reaching the level of apical protuberance and usually interrupted, secondary stria of interstice II obsolete from basal fourth to apical third. Primary costae without additional striae. Humeral umbone and apical protuberance moderately bulging. Lateral carina indistinct. Epipleura with a row of moderately dense long setae. Marginal membrane complete.

Propygidium. With dense transverse punctures coalescent into transverse striolation. Glabrous

Pygidium. Distinctly bulging, posterior margin protruding. With very dense transverse large punctures, punctures more ovoid near each side; punctures encircling greatest tumidity. With several short setae distributed along posterior margin, posterior margin with a row of long setae near apex.

Ventral thoracic surface. Hypomeron with dense coalescent striolation and moderately dense long setae. Collar of mesosternite transversely striolate with dense recumbent short setae. Other portions of mesosternite with shallow large punctures which usually coalescent into irregular striolation, with dense short setae. Ventral metathoracic surface with dense to very dense, shallow and annulated large punctures and dense, rather long setae at each side; with minute punctures and glabrous medially.

Abdominal ventrites. Ventrites 1–2, and anterior half of 3 weakly carinate laterally. Ventrites 2–5 with irregularly distributed small or large punctures, punctures coalescent into striolation in ventrite 6. Ventrites 2–5 each with a transverse row of sparse and moderately long setae, the setae sometimes recumbent, the rows broadly interrupted medially; ventrite 6 with a complete row of recumbent long setae along posterior margin.

Legs. Protibia tridentate, the apical and the second teeth blunt at apex, proximal tooth small; apical tooth almost extending to level of apex of protarsomere 2. Inner spur situated at the level of the second tooth. Inner protarsal claw and outer mesotarsal claw split apically, lower branches longer and distinctly wider, the lower branch of inner protarsal claw strongly concave internobasally. Protarsus slightly thickened. Each tarsomere 5 with an indistinct internomedial protuberance. Outer metatarsal claw slightly longer than inner one. Mesofemoral surface with transverse rows of long setae, several irregular rows between two regular rows, one at anterior margin and another situated behind middle, the row at posterior margin regular with shorter setae. Metafemoral surface with three transverse rows of sparse long setae, the first row at anterior margin, a second row situated behind middle with robuster setae, and a third row at posterior margin with short setae.

Male genitalia. See Fig. 9D–G . Parameres strongly asymmetric. The right paramere distinctly shorter than the left one. Ventral plate deflected at apex.

Paratypes. Males. Body length: 12.0– 13.7 mm, greatest width: 6.7–7.6 mm. External features and shape of parameres consistent. A male has lighter body color and two short semierect setae on disc of pronotum. Another male with a long erect seta near posterior margin of pronotum. Females ( Figs. 5D–F , 8D ). Body length: 12.3–13.9 mm, greatest width: 6.8–8.1 mm. Generally similar to male, but less convex. Body color dark brown to blackish brown. Anterior margin of clypeus weakly reflexed ( Fig. 8D ); antennal club almost equal to antennomeres 2–6 combined. Scutellum has straighter lateral margin. Pygidium less bulging, shorter than in male. Protibia and protarsomeres thinner than in male; apical protibial teeth tongue-shaped, extends to level of base of protarsomere 3; inner spur situated at the level of the third tooth; internomedial protuberance of protarsomere 5 small; upper and lower branches of inner protarsal claw and outer mesotarsal claw almost equal in length, but the lower branches are still thicker. The setae of the setose rows situated behind the middle of meso- and metafemoral surfaces are longer than in male.

Differential diagnosis. Anomala wutaiensis Zhao & Zorn , new species is similar to A. kanshireiensis Zorn & Zhao , new species and A. inclinata Zhao & Zorn , new species. However, interstice II of A. wutaiensis is slightly wider than in the other two species. The secondary stria of interstice II is obsolete approximately between basal fourth and apical third of elytron, while it is obsolete from level of scutellar apex to midway of elytron in A. kanshireiensis and to apical two fifth of elytron in A. inclinata . Moreover, A. wutaiensis has the thickest aedeagus among the A. linwenhsini -species group. The parameres are strongly asymmetric. The ventral plate of aedeagus is deflected at apex but flat in A. kanshireiensis and A. inclinata .

Etymology. The specific epithet is derived from Wutai, where the type series was collected.

Distribution. Taiwan Island (Pingtung).

Figures

FIGURE 5. Habitus of Anomala wutaiensis Zhao & Zorn, new species. A–C, holotype; D–F, female paratype. A, D, dorsal view; B, E, lateral view; C, F, ventral view. Scale bar = 5 mm.

FIGURE 8. Head of Anomala spp. A, A. linwenhsini Zhao & Zorn, new species, holotype; B, ditto, female paratype; C, A. wutaiensis Zhao & Zorn, new species, holotype; D, ditto, female paratype; E, A. kanshireiensis Zorn & Zhao, new species, holotype; F, ditto, female paratype; G, A. inclinata Zhao & Zorn, new species, holotype; H, ditto, female paratype. Scale bar = 5 mm.

FIGURE 9. Male genitalia (A–M) and everted endophallus (N–Q) of Anomala spp. A–C, A. linwenhsini Zhao & Zorn, new species, holotype; D–G, A. wutaiensis Zhao & Zorn, new species, holotype; H–J, N–O, A. kanshireiensis Zorn & Zhao, new species, holotype; K–M, P–Q, A. inclinata Zhao & Zorn, new species, holotype. A, D, H, K, dorsal view; B, F, I, L, N, P, right lateral view; E, O, Q, left lateral view; C, G, J, M, ventral view. Sc 1, scale bar for A–M = 2 mm; Sc 2, scale bar for N–Q = 5 mm.