G. Várkonyi, J. Itämies & A. Pyörnila 1997: Trogus lapidator (Fabricius) ssp panzeri Carlson (Hymenoptera, Ichneumonidae) in Finland: New rearing records and comments on its distribution. - Entomologica Fennica 8: 5-6.
Two new rearing records of Trogus lapidator (Fabricius, 1787) ssp. panzeri Carlson, 1975 (Hymenoptera, Ichneumonidae) are reported. In the light of these data we question the hypothesis according to which Trogus lapidator became extinct in Finland in the early 1960s and colonized the country again in the 1970s from the east.