Maladera nitens (Moser, 1915), 2021

Fabrizi, Silvia, Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2021, A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 4922 (1), pp. 1-400 : 161

Maladera nitens (Moser, 1915) group

Key to species of the Maladera nitens (Moser, 1915) group occurring in China (³³):

1 Dorsal surface dull, body size larger (> 10 mm). Anterior margin of metafemur without serrate line behind anterior margin. Metatibia without serrate line......................................... Maladera songi Ahrens, Fabrizi & Liu , sp. n.

1’ Dorsal surface shiny, body size smaller (<10 mm). Anterior margin of metafemur with a serrate line immediately behind anterior margin. Metatibia with serrate line in basal half.......................................................... 2

2 Parameres equally in length............................................................................. 4

2’ Right paramere distinctly shorter than the left one............................................................ 3

3 Right paramere narrowly emarginate before apex..................... Maladera allonitens Ahrens, Fabrizi & Liu , sp. n.

3’ Right paramere deeply and widely emarginate before apex.............. Maladera daanensis Ahrens, Fabrizi & Liu , sp. n.

4 Right paramere in basal half convexly widened.............................................................. 6

4’ Right paramere in basal half not particularly widened......................................................... 5

5 Parameres bent laterally (to the right) at apex. Phallobase strongly narrowed towards apex, half as wide as maximum width (dorsal view).................................................. Maladera paranitens Ahrens, Fabrizi & Liu , sp. n.

5’ Parameres straight. Phallobase moderately narrowed towards apex, ¾ as wide as maximum width (dorsal view)...................................................................... Maladera pseudonitens Ahrens, Fabrizi & Liu , sp. n.

6 Right paramere laterally convex in basal half............................................................... 7

6’ Right paramere laterally concave in basal half..................... Maladera jiucailingensis Ahrens, Fabrizi & Liu , sp. n.

7 Right paramere abruptly and strongly bent in apical half (dorsal view, Fig. 38B )................................................................................................ Maladera rufonitida Ahrens, Fabrizi & Liu , sp. n.

7’ Right paramere weakly bent in apical half (dorsal view, Fig. 36B )....................... Maladera nitens (Moser, 1915)

Figures

FIGURE 36. A–D: Maladera nitens (Moser, 1915) (China: Guadun, Fujian); E–H: M. allonitens Ahrens, Fabrizi & Liu, sp. n. (holotype); I–L: M. daanensis Ahrens, Fabrizi & Liu, sp. n. (holotype). A, E, I: aedeagus, left side lateral view; C, G, K: aedeagus, right side lateral view; B, F, J: parameres, dorsal view; D, H, L: habitus. Scale: 0.5 mm. Habitus not to scale.

FIGURE 38. A–D: Maladera rufonitida Ahrens, Fabrizi & Liu, sp. n. (holotype); E–H: M. songi Ahrens, Fabrizi & Liu, sp. n. (holotype); I–L: M. detersa (Erichson, 1834) (Vietnam: DaNang). A, E, I: aedeagus, left side lateral view; C, G, K: aedeagus, right side lateral view; B, F, J: parameres, dorsal view; D, H, L: habitus. Scale: 0.5 mm. Habitus not to scale.