Review of the fauna of the bug families Ceratocombidae, Tingidae, Microphysidae, and Reduviidae (Heteroptera) of the Middle and South Urals, with analysis of the zoogeographie structure of the Tingidae fauna

Abstract

Based on the material of the authors’ collections from the South Ural Reserve (Republic of Bashkortostan), Sverdlovsk and Chelyabinsk provinces, the collections of the Zoological Institute of the Russian Academy of Sciences, the Ilmen State Reserve (Chelyabinsk Province), and the Institute of Plant and Animal Ecology of the Ural Branch of the Russian Academy of Sciences (Yekaterinburg), and also the reliable literature data, an annotated list of the true bug fauna of the Middle and South Urals is compiled for the first time. The list includes representatives of the families Ceratocombidae (1 species), Tingidae (45 species of 14 genera), Microphysidae (1 species), and Reduviidae (2 species of 1 genus). The known fauna of the Middle Urals (Perm Territory and Sverdlovsk Province) includes 24 species of Tingidae and 1 species of Microphysidae; that of the South Urals includes 1 species of Ceratocombidae, 41 species of Tingidae, 1 species of Microphysidae, and 2 species of Reduviidae. Six species are recorded from the Urals for the first time: Ceratocombus (Xylonannus) brevipennis Poppius, 1910 (Ceratocombidae), Acalypta gracilis gracilis (Fieber, 1844), Agramma tropidopterum Flor, I860 (Tingidae), Loricula (Myrmedobia) exilis (Fallen, 1807) (Microphysidae), Empicoris culiciformis (De Geer, 1773), and E. vagabundus (Linnaeus, 1758) (Reduviidae). The families Ceratocombidae and Microphysidae were not previously known from this region. The following numbers of species are recorded for the first time for different regions of the Middle and South Urals: for Perm Territory, 2 species of Tingidae; for Sverdlovsk Province, 11 species of Tingidae and 1 of Microphysidae; for Bashkortostan, 1 species of Ceratocombidae, 13 of Tingidae, 1 ofMicrophysidae, and 2 species of Reduviidae; for Chelyabinsk Province, 3 species of Tingidae. The Tingidae fauna of the Middle and South Urals mostly includes species widespread in the latitudinal and longitudinal directions, including 4 Holarctic (8.9%) and 12 Trans-Palaearctic species (26.7%). Ranges of 24 species (53.3%) mainly lie in the “humid” northern part of the Palaearctic (the humid complex of species). Ranges of 21 species (46.7%) mainly lie in the southern part of the Palaearctic, i.e., the Tethyan Region (the arid complex), the Tingidae fauna of the Middle Urals including only 2 species (8.3%) of that complex. Seven species (17.1%) of Tingidae form the arid element in the fauna of Orenburg Province: Kalama henschi (Puton, 1892), Galeatus vitreus Golub, 1974, G. scrophicus Saunders, 1876, Tingis (Tingis) pusilla (Jakovlev, 1873), T. (Tropidocheila) renovata Golub, 1977, T. (Tr.) maculata (Herrich-Schaeffer, 1838), Dictyla subdola (Horvath, 1905). Ranges of 7 species (15.5% of the whole studied fauna of Tingidae) are limited to the Middle and South Urals in the east and northeast. Ranges of 8 other species (17.8%) extend eastwards, beyond the Urals no farther than the south of Western Siberia and Western Kazakhstan. The mountain territory of the Middle and the South Urals obviously serves as a significant orographic and climatic barrier on the way of eastward expansion of some Western- and Central-Palaearctic species of Tingidae.