Tocama huangjianbini Wang, 2022

Wang, F. L., 2022, A new species of the genus Tocama Reitter, 1902 (Coleoptera: Scarabaeidae, Melolonthinae) from China, Far Eastern Entomologist 446, pp. 7-12 : 8-10

Tocama huangjianbini Wang , sp. n.

http://zoobank.org/NomenclaturalActs/ B7627FC6-DD40-40DE-90DF-D9409EBCFDD5

Figs 1–9

TYPE MATERIAL. Holotype – ♂, China: Fujian Province / Fuzhou City, Pintan Island

/ Longfengtou Coast / alt. 0m, 6.IV 2020 / Jian-Bin Huang leg. // HOLOTYPE / Tocama huangjianbini / FL-Wang det. 2021 ( MYNU) . Paratypes – 1♂, 1♀, China: Fujian Province /

Fuzhou City, Pintan Island / Longfengtou Coast / alt. 0 m, 6.IV 2020 / Jian-Bin Huang leg. //

PARATYPE / Tocama huangjianbini / FL-Wang det. 2021 ( MYNU) ; 2♂, 1♀, China: Fujian

Province / Fuzhou City, Pintan Island / Longfengtou Coast / alt. 0 m, 6.IV 2020 / Jian-Bin

Huang leg. // PARATYPE / Tocama huangjianbini / FL-Wang det. 2021 ( CFLW) .

DESCRIPTION. MALE (holotype). Habitus ( Figs 1, 2 ). Length: 16.2 mm, width: 10.7

mm. Body elongate ovoid, rather convex in profile ( Fig 5 ).

Color. Head, pronotum, scutellum, and abdomen dark brown to blackish brown, pronotum brown, antennal and legs dark reddish brown.

Head. Clypeus rectangular, bordered, anterior corners board rounded, anterior margin reflexed, incurved in the middle, surface with dense, coarse, setiferous punctures; fronto-

clypeal suture raised in the middle; frons densely setiferous punctate, coarsely in the middle,

hair-like setae slightly long; antennal club longer than footstalks.

Pronotum wide trapezoid, surface densely punctate, densely covered with long hair-like setae; sides well crooked, anterior angles obtuse, apex rounded, posterior angles acute. Scutellum densely punctate, surface with long hair-like setae.

Elytra. Surface rugose with three developed costae between suture and humerus, sutural costa (as costa 1) and costae 2 complete and distinct, costa 3 weak; overall surface with setae which shorter than those on pronotum, setae on hind angles denser and shorter.

Propygidium with dense setae on sides, little on disc. Pygidium. apex rounded, lateral margins straight, slightly incurved before apex; surface densely with setae, also with long hairlike setae overall spread. Venter ( Fig 2 ). Prosternal process hardly protruding. Metepisternum and metepimeron overall covered with long hair. Sides of abdominal sternites 1–5 weakly with disconnected maculation consisting of whitish scale-like setae; abdominal sternites with rather dense, short setae on sides, setae on the middle sparer, overall covered with another kind of long setae.

Legs. Protibia slender, surface with short setae, tridentate with terminal tooth rather pro-

longed, middle tooth acute, basal tooth weakly developed; mesotibia and metatibia cylindrical, surface with short setae, inner surface with a row of strong setae, apex gradually widening, both with two unequal length spurs; surface of tarsal with dense, short setae.

Parameres ( Figs 6–9 ) asymmetrical, apex of parameres without setae; in lateral view, apex of parameres rounded.

FEMALE. Similar with male in general appearance (compare Figs 1–4 ) but differs in the following characters: 1) body generally wider; 2) antennal shorter than footstalks; 3) protibia wider, hind tooth distinctly; 4) pygidium shorter ( Figs 10, 11 ).

DIFFERENTIAL DIAGNOSIS. The new species can be distinguished from congeners by apex of parameres of male genitalia rounded and without setae ( Figs 6–9 ). New species is most similar to T. formosana (Yu, Kobayashi & Chu, 1998) in appearance, but protibia slen-

derer (compare Fig. 1 with Wang et al., 2015: fig. 8) and elytra not incurved distinctly in lateral view (compare Fig. 5 with Wang et al., 2015: fig. 24).

female. 1, 3 – dorsal view; 2, 4 – ventral view.

genitalia of holotype: 6 – dorsal view, 7 – ventral view, 8 – lateral view from right, 9 – lateral view from left; 10 – pygidium of holotype; 11 – pygidium of female paratype.

REMARKS. Wang et al. (2015) described genus Tocama as: “possessing strongly asymmetrical parameres of the male genitalia with a bundle of curled, robust setae at the apex of the parameres”. So far, Tocama huangjianbini sp. n. is unique species of Tocama with apex of parameres without setae.

HABITAT. The habitat of the new species is a seaside village of Pintan Island

(130 kilometers northwest of Taiwan Island), Fujian as shown in Figs 12–15 . The specimens examined were collected around light at night.

DISTRIBUTION. Known only from the type locality in Fujian Province, South China .

ETYMOLOGY. The new species is named after Jian-Bin Huang, who collected all types.

Figures

Figs 1–4. Tocama huangjianbini sp. n., habitus. 1, 2 – holotype, male; 3, 4 – paratype

Figs 5–11. Tocama huangjianbini sp. n. 5 – left lateral view of holotype; 6–9 – male

Figs 12–15. Type locality of Tocama huangjianbini sp. n. (Pintan Island, Longfengtou Coast). Photos by Jian-Bin Huang.