En ny vecklarart, Clepsis nybomi Hackman 1950, funnen i Sverige (Tortricidae, Lepidoptera)

摘要

In July 2004 the tortricid Clepsis nybomi was found in Sweden for the first time. A male was netted on an open mire at Paksuniemi east of Jukkasjarvi, Torne lappmark on 7 July. The mire was intersected by narrow ridges of peat and sods with sparse stands of Pinus. On the same trip, on my way to the south, I stopped at Ljungdalen in the province of Harjedalen in the west central of Sweden. I visited on 11 July a calciferous bog in the subalpine region were only a few single spruces grew in the bog margins among birches (Betula pendula ssp. czerepanovii). In the bog grew Bartsia alpina, Saussurea alpina, Salix lapponica, Dactylorhiza sp., etc. Also here I found one specimen of Clepsis nybomi, now a fem-ale. Previously only 9 specimens were reported inthe world, all of which were known from Finland except for one that was found in the Ural Mountains in 1996. Clepsis nybomi can be separated from other tortricids by the dark brown ground colour and the regularly scattered, more or less evident pale spots, especially along the median veins. In the male genitalia the shape of the aedeagus is the most striking feature. The female genitalia are illustrated for the first time. Specific characters are the shape of the ridges around the ostium, the long andstraight ductus bursae and the shape of signum in bursae copulatrix. The host plant of the larva is still unknown. On the two sites where the Swedish specimens were found only trivial vascular plant species occurred, typical for the each category of thenorth Fennoscandian mires.