New taxa of Pterostichini (Coleoptera: Carabidae) from Vietnam

Abstract

placement name Pterostichus (Steropanus) boriskataevi nom.n. is here proposed for wrongly introduced junior homonym name Pterostichus (S.) kataevi Fedorenko, 2018 (non Pterostichus kataevi Kryzhanovskij, 1989). Material was collected during several field trips and expeditions to highlands of Central and northern Vietnam, sponsored by the Joint Russia-Vietnam Tropical Centre. Acronyms used are as follows: SIEE — the author’s reference collection at A.N. Severtsov Institute of Ecology & Evolution, Russian Academy of Sciences, Moscow; ZMMU — Zoological Museum of the Moscow State University; ZISP — Zoological Institute of Russian Academy of Science, St.-Petersburg. The following parameters were analyzed: maximum body length measured between apices of closed mandibles and apex of elytra (BL); distance between apex1 of elytron and discal pore d2 (D2); length of elytron, measured from the highest point of basal margin to apex (EL); maximum width of elytra (EW); width of head across eyes (HW); width of pronotum between apical (PA) or basal (PB) angles; length of pronotum along median line (PL); distance between apex and level of maximum width of pronotum, measured along mid-line (PLw); maximum width of pronotum (PW). Other abbreviations include US, umbilical seta, of USS, umbilical seta series running on elytral interval 9. Measurements were taken using an eyepiece micrometer, to two decimal places. The means are given in round brackets for the ratios, with the number of measured specimens (n) indicated for the first ratio in the description. All labels are printed. Data on labels of type specimens are in quotes. ABSTRACT. New carabid beetle taxa of the tribe Pterostichini from Vietnam are described: genus Trigonaptus gen.n., subgenus Tausternus subgen.n. of the genus Pterostichus, and seven species, T. inaequalis sp.n., T. longiscapus sp.n., P. (T.) hoii sp.n., P. (Vietosteropus) kuznetsovi sp.n., P. (Steropanus) securipenis sp.n., P. (S.) pseudoglymmiger sp.n., and P. (S.) fossifrons sp.n. The replacement name Pterostichus (S.) boriskataevi nom.n. is proposed for junior homonym name P. (S.) kataevi Fedorenko, 2018.