Trachystolodes species

Wang, Cheng-Bin & He, Li, 2021, Trachystolodes neltharion sp. n. from Yunnan, China (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 5032 (2), pp. 295-300 : 300

Key to males of Trachystolodes species (updated from Huang et al. 2020 and Wang et al. 2021)

1. Scutellum clothed with black pubescence; besides black middle patch, each elytron with 2–3 smaller black patches posteriorly.................................................................................. T. neltharion sp. n.

1’. Scutellum clothed with brown to castaneous pubescence; each elytron with one black middle patch, at most some inconspicuous spots posteriorly................................................................................... 2

2. Femoral apices (except ventral sides) and basal dorsa of tibiae covered with brown pubescence....................... 3

2’. Femoral apices (except ventral sides) and basal dorsa of tibiae covered with golden yellow pubescence................. 4

3. Pronotal calli rather large................................................... T. huangjianbini Huang, Guo & Liu

3’. Pronotal calli relatively small................................................... T. tianjialini Wang, Xie & Wang

4. Black middle patches on elytra smaller, drop-shaped..................................... T. bimaculatus (Kriesche)

4’. Black middle patches on elytra larger, sub-rectangular...................................... T. tonkinensis Breuning