Cylindroiulus truncorum

191. Cylindroiulus truncorum (Silvestri, 1896)

Diploiulus truncorum Silvestri, 1896.

Cylindroiulus luscus salicis Verhoeff, 1926.

AT, BE, CH, DE, DK-DEN, ES-CNY, FI, FR-FRA, GB-GRB, GB-CI, GB-NI, HU, LU, NL, NO-NOR, PL, PT-MDR, PT-POR, SE, UA. Extended Atlantic. – Also North Africa (Algeria, Tunisia), introduced into Siberia and the Australian, Neotropical and Nearctic regions.

Strongly synanthropic over most of its known range, found in botanical and other gardens, parks, cemeteries, horticultural nurseries, greenhouses, farms, in hay, on spoil heaps, quarries, scrub, in refuse on waste ground. There was an infestation of house walls in Belgium (Kime, 2004). Haacker (1968) found that it spread into surrounding woodland in West Germany, that it preferred high humidity and ate mainly leaves. Found in woodland litter in Portugal as well as Germany. In laurisilva with tree heather at 800–900 m on Tenerife (Monte de las Mercedes).

Schubart (1934) thought that the species was probably introduced into northern Europe from the Mediterranean, and its occurrences on the Canary Islands and Madeira are certainly also due to introduction. However, while it occurs in North Africa, there are no records from Italy or continental Spain and only two or three from France, in western and central parts – Finistère (Blower 1987), Nièvre (Jawłowski 1933b), and possibly Vienne departments (a female). It may have been overlooked in the past because of known confusion with similar species, especially C. parisiorum and C. arborum. We have not shown on our map records from Göteborg and Piteå in Sweden, Buskerud in Norway, southern Finland, and Kiev in the Ukraine because these are from greenhouses.