New species of Meleagros and Tarsagonum (Coleoptera: Carabidae: Platynini) from the Oriental region

Abstract

Acronyms used are as follows: SIEE — the author’s reference collection at A.N. Severtsov Institute of Ecology & Evolution, Russian Academy of Sciences, Moscow; ZISP — Zoological Institute, Russian Academy of Sciences, St. Petersburg; ZMMU — Zoological Museum of the Moscow State University. The following parameters were analyzed: maximum body length measured between apices of closed mandibles and apex of elytra (BL); length of elytron, measured from the highest point of basal ridge to apex (EL); maximum width of elytra (EW); length of gena (= temple) in sagittal plane (GL); width of head across eyes in sagittal plane (HW); width of neck at neck constriction (HnW); length of eye in sagittal plane (OL); width of pronotum between apical (PA) or basal (PB) angles; length of pronotum along median line (PL); distance between pronotal apex and level of maximum width of pronotum, measured along mid-line (PLw); maximum width of pronotum (PW). Other abbreviations include: DAS — tarsal dorsoapical setae; LAS — tarsal latero-apical setae; 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. All labels are printed. Data on labels of type specimens are in quotes. Male and female genitalia were examined in glycerin, after being boiled for two minutes or put for a day in a diluted KOH solution and then rinsed. ABSTRACT. Six new species, Meleagros laticeps sp.n., M. astericollis sp.n., M. setulosus sp.n., and M. pseudosinicola sp.n., from Vietnam, Tarsagonum breve sp. n. from Laos and T. indicum sp.n. from India, are described. A new subgenus, Louwerensium subg.n., is erected for the two described species of Tarsagonum and T. kaszabi Louwerens, 1966. New synonymy is established: Loxocrepis Eschscholtz, 1829 = Violagonum Darlington, 1956, syn.n.