Kataev B.M. 2022. Description of two new subgenera of Trichotichnus, with new brachypterous species from New Guinea and Sumatra (Coleoptera: Carabidae), and notes on three previously described species // Russian Entomol. J. Vol.31. No.4: 373–384 [in English].
Zoological Institute, Russian Academy of Sciences, Universitetskaya Emb. 1, St Petersburg 199034, Russia. E-mail: email@example.com
ABSTRACT. Within the genus Trichotichnus Morawitz, 1863, two new subgenera are described: Neotichnus subgen.n. with T. bellorum sp.n. (type species) and T. riedeli sp.n., both from Papua New Guinea, and Allotichnus subgen.n. with a single species, T. beroni sp.n., from Sumatra (Indonesia). All three described species are obligatory brachypterous and apparently with very restricted distribution. The distinctive features of new subgenera are discussed, and a modified key to seven subgenera of Trichotichnus is provided. Trichotichnus shunichii Ito, 2021, which was described from Vietnam without subgeneric affiliation, is included in the subgenus Iridessus Bates, 1883. Trichotichnus (s. str.) dmitryi Kataev, Liang et Wrase, nom.n. is proposed for the primary homonym T. (s. str.) fedorenkoi Kataev, Liang et Wrase, 2022, non T. (Amaroschesis) fedorenkoi Kataev et Ito, 1999. Trichotichnus maculipennis Baehr, 1997, which was described from Australia, is transferred to the genus Lecanomerus Chaudoir, 1850, comb.n.
KEY WORDS: Coleoptera, Carabidae, Harpalini, Trichotichnus, Lecanomerus, Papua New Guinea, Australia, Indonesia, Sumatra, new subgenera, new species, new substitute name, new combination.