Notes on the Extralimital Distribution of Some Species of Coleoptera

Abstract

AbstractThe Atlantic Provinces received many coleopterous immigrants from Europe during colonial times. These immigrants live in man-made habitats, and they show unnaturally restricted distributional patterns. Many were introduced independently to regions about Puget Sound, and there were multiple introductions in the East. Parthenogenesis is a factor in the establishment of imported otiorhynchine weevils. Imported species not previously reported from North America are Abax parallelopipedus (Pill. & Mitt.), Eusphalerum torquatum (Marsh.), Meligethes viridescens (Fab.), and Longitarsus luridus (Scop.). Aphodius tenellus Say is strictly North American and has been confused with the Eurasian species that should be known as uliginosus Hardy. American records of Sitona tibialis (Hbst.) and probably those of S. discoideus Gyll. are based on S. scissifrons Say, which is native to North America. The Alaskan Philostratus ptinoides (Germ.) occurs, evidently as an import, in eastern Canada. New synonymy is proposed: Thes bergrothi (Reitter, 1880) = Enicmus tricarinatus Brown, 1934; Aphodius borealis Gyllenhal, 1827 = A. errans Brown, 1930. Notes are given on the distribution, characters, or nomenclature of other species.