Maladera brunnescens (Frey, 1972), 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 : 222

Maladera brunnescens (Frey, 1972) group

Key to species of the Maladera brunnescens (Frey, 1972) group (³³):

1 Phallobase with an apical lateral process on each side. Body bicolored, dorsal face yellow, ventral face blackish...................................................................... Maladera flavipennis Ahrens, Fabrizi & Liu , sp. n.

1’ Phallobase without apical lateral processes. Body unicolored, reddish brown....................................... 2

2 Phallobase strongly widened at apex. Parameres composed by a single branch ( Fig. 51B, F ).......................... 3

2’ Phallobase weakly widened at apex. Parameres composed by two filiform branches ( Fig. 52B )................................................................................. Maladera filigraniforceps Ahrens, Fabrizi & Liu , sp. n.

3 Parameres strongly curved externally, without a median lateral sharp tooth............ Maladera brunnescens (Frey, 1972)

3’ Parameres straight, with a median lateral sharp tooth............. Maladera parabrunnescens Ahrens, Fabrizi & Liu , sp. n.

Figures

FIGURE 51. A–D: Maladera brunnescens (Frey, 1972) (holotype); E–H: M. parabrunnescens 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.

FIGURE 52. A–D: Maladera filigraniforceps Ahrens, Fabrizi & Liu, sp. n. (holotype); E–H: M. flavipennis Ahrens, Fabrizi & Liu, sp. n. (holotype); I–L: M. liwenzhui 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.