Chersotis studies 1. - Revision of the transiens-stridula group (southern Urals and Central Asia) with the descriptions of cortifera sp. n., altajensis sp. n. and altajensis uralica ssp. n. (Lepidoptera, Noctuidae). Entomologische Berichte Luzern, 38, Dezember 1997: 155-170. 162 [Zoological Record Volume 134]