Anomala longilobata 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 : 191-194

Anomala longilobata Zhao & Zorn , new species [ḴNJ异fflŵoi]

( Figs. 10 , 11A–E, 11I , 12A–C )

Type material. Holotype: ♂ ( SCAU), Hainan Island, Ledong, Mts. Jianfengling [= 尖峰岭], alt. 1412 m, 18.710708 N, 108.875812 E, 2019.IV, Shi-Liang Mo leg. Paratypes: 7♂♂, 2♀♀ ( ZMPC), same data as holotype ; 1♂ ( ZMPC), Hainan Island, Ledong, Jianfengling main peak, 2019-Apr.-14–16, 1412 m, 18.7170°N, 108.8716°E, Hai-Tian Song leg. ; 2♂♂ ( CCPC), Jianfengling , 1412 m, 2020.IV–V, Ying-Hui Li leg. ; 1♂ ( IZAS), Hainan Prov., Ledong, Jianfengling main peak, 2018. IV. 22, 1412 m, 18°43’0.85’’(N), 108°52’17.74’’(E), Bin Liu leg. IOZ(E) 1967013; 1♂ ( IZAS), ditto, but “ 2018. V. 6 ” and “IOZ(E) 1967014” ; 1♂ ( IZAS), ditto, but “ 2018. V. 11 ” and “IOZ(E) 1967015” ; 1♂ ( IZAS), ditto, but “ 2018. IV. 28 ” and “IOZ(E) 1967016” ; 2♂♂ ( IZAS), ditto, but “ 2018. IV. 20 ” and “IOZ(E) 1967017–1967018” ; 1♂ ( CCPC), Hainan, Wuzhishan , 2009-IV-19 ~24, Yu-Feng Hsu leg. ; 1♂ ( CCPC), Wuzhishan ~ 700m, 2011-IV-25, Yi-Ting Chung leg.

Description. Holotype male ( Figs. 10A–C , 12A–C ). Body length: 13.7 mm, greatest width: 8.0 mm.

General appearance. Body shape elongated ovoid, strongly convex. Generally dark green, with reddish sheen and weak metallic luster; marginal part of clypeus, mouth parts, lateral part of pronotum (except for a small spot at middle), ventral thoracic surface including coxae and femora (except for metasternal ventrite and anterior half of metepisternum), lateral part of abdominal ventrites and pygidium (except for basal and apical portions) yellow; antennomeres 1–4 brown, other antennomeres dark brown. Protibial teeth and claws of all legs reddish brown.

Head. Clypeus subtrapezoidal, anterior corner broadly rounded; anterior margin feebly arched and moderately reflexed; surface with very dense and coarse punctures. Frontoclypeal suture distinct. Frons with very dense and coarse punctures, dense in vertex. Antennal club distinctly longer than antennomeres 2–6 combined. Inner margin of eye with several short setae.

Pronotum. Sides gently arched and convergent anteriad. Anterior angle acute and protruding, posterior angle blunt. Basal marginal line interrupted before scutellum, other marginal lines complete, lateral marginal line indistinct. With dense small punctures, punctures being coalescent at marginal portions; with a longitudinal medial furrow not reaching the base. Lateral margin with several moderately long setae.

Scutellum. Almost triangular, lateral margin feebly arched. Margins without setae, disc with dense, somewhat coalescent small punctures.

Elytra. Intervals strongly convex; strial punctures very dense, annulated and small, usually strongly coalescent and larger at basal part of each stria and in lateral portions of each elytron; the whole surface with scattered minute punctures. Interstices I to IV each with a secondary stria; interstice I (the subsutural interstice) broadest, divided by a wide secondary stria into two costae, the secondary stria is formed by dense and coalescent large punctures; secondary stria of interstice II irregularly doubled, obsolete at basal third of elytra; secondary stria of interstice III emerging from internal portions of humeral umbone, irregularly doubled and wide at base, gradually narrower posteriad and obsolete before basal half of elytra; secondary stria on interstice IV shortly doubled at base, obsolete behind apical protuberance. Primary costae without additional striae. Humeral umbone and apical protuberance moderately bulging. Lateral carina distinct. Epipleura with a row of sparse short setae. Marginal membrane complete.

Propygidium. Surface with dense transverse striolation. With a transverse row of sparse short setae proximally.

Pygidium. Distinctly bulging, posterior margin arched. Surface with dense transverse striolation. With a short row of long setae proximally, and a transverse row of long setae at posterior margin near apex, disc with scattered short setae.

Ventral thoracic surface. Ventral pro- and mesothoracic surface with dense coalescent punctures and sparse short setae. Ventral metathoracic surface with dense large punctures and dense long setae, the punctures being smaller and sparser in the glabrous medial portion.

Abdominal ventrites. Ventrites 1–2 and anterior half of 3 weakly carinate laterally. Ventrites 2–5 with moderately dense transverse large punctures, usually coalescent near each side; ventrite 6 transversely striolated. Ventrites 2–5 each with a complete and transverse row of sparse, short or moderately long setae, the row of ventrite 6 at posterior margin.

Legs. Protibia bidentate, both teeth distinct, blunt at apices; apical tooth extending to level of halfway of protarsomere 2. Inner spur situated at the level of the proximal tooth. Inner protarsal claw and outer mesotarsal claw split apically; lower branch of inner protarsal claw concave internobasally, longer and distinctly wider than the upper branch; lower branch of outer mesotarsal claw slightly wider than upper branch, almost equal in length. Each tarsomere 5 with an internomedial denticle, those of meso- and metatarsomere 5 small. Outer metatarsal claw slightly longer than inner one. Mesofemoral surface with transverse rows of long setae, several irregular rows between two regular rows at anterior margin and situated behind middle, the latter spiniform, a row at posterior margin regular with shorter setae. Metafemoral surface with three transverse rows of sparse short setae, the first row at anterior margin, a second row situated behind middle with robuster setae, and a third row at posterior margin.

Male genitalia. See Fig. 12A–C .

Paratypes. Males ( Fig. 11A–E ). Body length: 14.1–14.4 mm, greatest width: 7.8–8.3 mm. External features and shape of parameres consistent but color variable. The general color varies from green, reddish green, purplish black, coal black ( Fig. 11A–D ), or even yellowish brown or reddish brown with two separated subtriangular patches in discal portion of pronotum ( Fig. 11E ), one yellowish specimen lacks of any pronotal patch; ventral surface including pygidium and all femora sometimes entirely yellowish brown. Females ( Fig. 10D–F , 11I ). Body length: 14.4–15.4 mm, greatest width: 8.7–9.1 mm. Generally similar to male but shape more broadened behind. Color generally yellowish brown with greenish sheen and weak metallic luster; each side of pronotum with a greenish patch located in a fovea. Antennal club slightly longer than antennomeres 1–6 combined. Basal marginal line distinct but less furrowed. Lateral carina slightly thicker. Pygidium almost triangular in shape and less bulging in lateral view. Setae on ventral surface distinctly denser and longer. Protibia slightly thinner than in male; apical protibial tooth round at apex, extending to level of base of protarsomere 3, proximal tooth blunt; inner spur situated at halfway of protibia; internomedial protuberance of all tarsomeres 5 small; upper and lower branches of inner protarsal claw and outer mesotarsal claw almost equal in length but the lower branches are slightly thicker; metatibia wider.

Differential diagnosis. Anomala longilobata Zhao & Zorn , new species is closely allied to A. imperialis Arrow, 1899 ( Figs. 11F–H, 11J–L , 12D–F ; syntype examined) from China, Laos, and Vietnam. The elytral intervals of A. longilobata Zhao , new species are usually slightly more convex. The lower branches of parameres are longer, with the right one evenly pointed at apex (enlarged into a plate at apex in A. imperialis ). The ventral plate is simply rounded at apex but distinctly emarginated in A. imperialis . The generally greenish or purplish (pronotum green) female is only known for A. imperialis ( Fig. 11K–L ).

Etymology. The specific epithet derives from the Latin prefix “ longi- ” and the adjective “ lobatus, -a, -um ”, alluding to the slender and lobed lower branch of paramere.

Distribution. Hainan Island (Mts. Jianfengling and Mts. Wuzhishan).

Figures

FIGURE 10. Habitus of Anomala longilobata 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 11. Habitus of Anomala spp., in dorsal view.A–E, I, paratypes of A. longilobata Zhao & Zorn, new species; F–H, J–L, A. imperialis Arrow, 1899 (China: Guangxi). A–H, male; I–L, female. Scale bar = 5 mm.

FIGURE 12. Male genitalia of Anomala spp. A–C, holotype of A. longilobata Zhao & Zorn, new species; D–F, A. imperialis Arrow, 1899 (China: Guangxi). A, D, dorsal view; B, E, right lateral view; C, F, ventral view. Scale bar = 2 mm.