Hemiserica Brenske, 1894

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 : 34-35

Maladera (subgen. Hemiserica Brenske, 1894 )

Hemiserica Brenske, 1894: 11 (Type species (by monotypy): Hemiserica nasuta Brenske, 1894 ); Ahrens 2004a: 342.

Rhynchosymmela Frey, 1974: 120 (type species, by monotypy: Rhynchosymmela pallida Frey, 1974 ); syn by Ahrens 2004b: 32.

Maladera (subgen. Hemiserica ): Ahrens & Fabrizi 2016: 250.

Key to species of Maladera (sbg. Hemiserica ) occurring in China (³³):

1 Body size larger,> 9 mm. Dorsoapical median emargination of phallobase deep and narrow........................... 3

1’ Body size smaller, <8 mm. Labroclypeus finely and sparsely punctate, surface flat. Dorsoapical median emargination of phallobase shallow........................................................................................ 2

2 Ventral lobe of left paramere longer, distinctly exceeding the lobiform dorsal lobe................................................................................................ Maladera rufopaca Ahrens, Fabrizi & Liu , sp. n.

2’ Ventral lobe of left paramere shorter, only little exceeding the lobiform dorsal lobe........................................................................................... Maladera fangchengensis Ahrens, Fabrizi & Liu , sp. n.

3 Labroclypeus coarsely and rugosely punctate, surface strongly convex. Basal piece of left paramere cylindrical; its narrow apical process fine and weakly bent ( Fig. 7B ). Right paramere weakly reflexed (lateral view, Fig. 7C )....................................................................................... Maladera hsui Ahrens, Fabrizi & Liu , sp. n.

3’ Labroclypeus finely punctate, surface nearly flat. Basal piece of left paramere conically narrowed; its narrow apical process thicker and strongly bent ( Fig. 7F ). Right paramere strongly reflexed (lateral view, Fig. 7G )........................................................................................ Maladera eshanensis Ahrens, Fabrizi & Liu , sp. n.

Figures

FIGURE 7. A–D: Maladera hsui Ahrens, Fabrizi & Liu, sp. n. (paratype); E–H: M. eshanensis Ahrens, Fabrizi & Liu, sp. n. (holotype). A, E: aedeagus, left side lateral view; C, G: aedeagus, right side lateral view; B, F: parameres, dorsal view; D, H: habitus. Scale: 0.5 mm. Habitus not to scale.