Gorochov A.V. 2026. Systematics of the American Katydids (Orthoptera: Tettigoniidae). Communication 13: the subtribes Microcentrina and Stilpnochlorina subtrib.n. // Russian Entomol. J. Vol.35. No.1: 1–67 [in English].
Zoological Institute, Russian Academy of Sciences, Universitetskaya Emb. 1, St Petersburg 199034 Russia.
Andrei Gorochov: orthopt@zin.ru ORCID https://orcid. org/0000-0001-7842-2498
doi: 10.15298/rusentj.35.1.01
ABSTRACT. A new material on the genera Ischyra Brunner-Wattenwyl, 1878, Tropicophyllum Koçak et Kemal, 2008, Tuaia Mendes et al., 2020, Microcentrum Scudder, 1862, Acropsis Uvarov, 1939 and Philophyllia Stål, 1873 from the subtribe Microcentrina (Steirodontini) as well as on the genera Syntechna Brunner-Wattenwyl, 1878 and Problemovapex gen.n. from the subtribe Stilpnochlorina subtrib.n. of the same tribe is considered. Diagnostic characters and composition of these subtribes and genera as well as systematic position of the genera Apoballa Brunner-Wattenwyl, 1878 and Petaloptera Saussure, 1859 are briefly discussed. The following lower new taxa (39) are also described: Ischyra (Acrephyllum stat.n.) peruensis sp.n. from Peru; I. (A.) minutissima sp.n. from Peru; I. (A.) guyanensis sp.n. from French Guiana; I. (Hyalipenna stat.n.) clara sp.n. from Peru; I. (Ultraischyra subgen.n.) daedala sp.n. from Peru; I. (Caauara stat.n.) obliqua sp.n. from Peru; I. (C.) reticulata sp.n. from Peru; I. (C.) implaculata sp.n. from Peru; I. (Anapolisia stat.n.) fracta sp.n. from Peru; I. (A.) semifracta sp.n. from Peru; I. (A.) simplicissima sp.n. from Peru; I. (A.) simillima sp.n. from Peru; I. (A.) placulata sp.n. from Peru; Tropicophyllum (Prorossophyllum subgen.n.); Tuaia (Tuaia) pilosa sp.n. from Peru; Microcentrum (Carnavalia stat.n.) philammon tuxtlas subsp.n. from Mexico; M. (C.) grandiplacula sp.n. from Peru; M. (C.) morona sp.n. from Ecuador; M. (C.) miniplacula sp.n. from Peru; M. (C.) latistylus sp.n. from Peru; M. (Microcentrum) jalisco sp.n. from Mexico; M. (M.) sympatricum sp.n. from Mexico; M. (M.) xerophilum sp.n. from Ecuador; M. (M.) selva sp.n. from Mexico; M. (M.) lacandonense sp.n. from Mexico; M. (M.) nitidum sp.n. from Peru; M. (M.) nigrolineatum boreale subsp.n. from Peru; M. (Rotundovapex subgen.n.); M. (R.) tamaulipas sp.n. from Mexico; M. (R.) foliolum sp.n. from Costa Rica; M. (Paradoxirostrum subgen.n.) ornatum sp.n. from Mexico; M. (Securicercus subgen.n.); M. gracilissimum sp.n. from Honduras; Acropsis meridiana sp.n. from Peru; Philophyllia ingens magdalenae subsp.n. from Colombia; Syntechna longitegminalis sp.n. from Peru; Problemovapex nicaraguensis gen. et sp.n. from Nicaragua. The generic names Acrephyllum Piza, 1973 and Carnavalia Koçak et Kemal, 2008 are restored from synonymy with Microcentrum for subgenera of Ischyra and of Microcentrum, respectively; the former genera Anapolisia Piza, 1980, Hyalipenna Мendes et al., 2020, Caauara Мendes et al., 2020, Capanema Mendes et Rafael, 2021 and Capiguara Mendes et al., 2020 are considered as subgenera of Ischyra (the first three), of Tropicophyllum (Capanema stat.n.) and of Tuaia (Capiguara stat.n.); the generic names Ctenophlebia Stål, 1874, syn.n. and Boroseiyela Mendes et al., 2020, syn.n. are synonymized with Microcentrum s.str.; the species names Rossophyllum clausum Grant, 1958 and Parableta bicentenaria Piza, 1968 are restored from synonymy with Tropicophyllum zonatum (Giglio-Tos, 1898) and Microcentrum lanceolatum (Burmeister, 1838), respectively, but for the subspecies T. z. clausum (Grant, 1958), stat.n. and for the distinct species M. bicentenarium (Piza, 1968), sp.dist.; the new name M. stridulans nom.n. is supposed for M. myrtifolium Saussure et Pictet, 1898, because the latter name is a secondary homonym of M. myrtifolium (Linnaeus, 1758); the lectotypes for M. angustatum Brunner-Wattenwyl, 1878 and S. olivaceoviridis Brunner-Wattenwyl, 1878 as well as the neotype for M. totonacum (Saussure, 1859) are designated.
KEY WORDS: America, Microcentrina, Stilpnochlorina subtrib.n., new taxa, Phaneropterinae, Steirodontini, Tettigoniidae.