(14800) BRODSKY, A.K., 1988. Stroenie, funkcionirovanie i evoluciya krylovyh sochleneniy nasekomyh. — Structure, functioning and evolution of the wing articulations in insects, Chteniya Pamyati N.A. Holodkovskogo 41: 3-47. (Russ., with Engl. s.). — (Last known address; Dept Ent., St Petersburg St. Univ., Universitetskaya nab. 7/9, RUS-199164 St Petersburg). The structure and functioning of the wing axillary sclerites during wing beating and wing folding are described and illustrated. In the course of evolution the structure of the articulation zone of the wing has changed significantly, allowing new movements and new interconnections between axillary sclerites. A comparative account of the structure and functioning of the axillae is presented and some of the evolutionary trends are shown. Among these, the optimization of transmission of the effort from flight muscles to the wing is most important. A mechanism for wing folding is described and the sequence of changes in the course of the evolution is Paced. Of all groups studied, the most primitive type of the wing axillary zone is found in Plecoptera. 2 distinctive stems may be derived from the ground-plan for Insecta: (1) Gryllones (without Plecoptera), and (2) Scarabaeiformes and Cimiciformes (without Palaeodictyopteroidea). The peculiarity of construction of the axillary zone in Ephemeroptera, Odon. and Palaeodictiopteroidea is very high and testify to their early separation (together or separately) from Insecta common stem. All these 3 groups seem adopted to benefit liom gliding flight. – See also OA 8527. (14801) GRIESINGER, J„ 1988. Ökofaunistische Untersuchungen an den Libellen (Odonata, Insecta) des Saumseen bei Karlsruhe-Daxlanden (Naturschutzgebiet „Frilschlach“). DiplArb. Biol., Univ. Karlsruhe, iv+142 pp., App. 1-2 excl. – (Author’s current address unknown). The M.Sci. thesis was prepared under the supervision of Prof. Dr G. Jurzitza. The field work was conducted during May-Oct. 1987. At 8 sites in the Fritschlach Nature Reserve nr Karlsruhe (Germany), 27 spp. were evidenced. The respective odon. assemblages are described and ecologically analysed.