Year 1975, No. 6 (November - December)

Novikov ┬. G. Mechanisms of Birds' Reproduction Seasonal Periodicity

Shpet G. I. Certain Morphometric Regularities in an Increase of Animal Productivity

SoIukha ┬. V. Peculiarities of Functional Morphology of Sound Transmission Apparatus in Certain Tailless Amphibias

Gonchar' M. G. Extra- and Intraorganic Arteries of Dog Tibia Muscles

Shcherbak N. N. Geographical Variability and Intraspecies Taxonomy of Eremias velox Pall., 1771 (Reptilia, Sauria)

Kostyuk Yu. A. New Species of Leaf-Rollers (Lepidoptera, Tortricidae) from Mountains of Southern Siberia

Zerova M. D. New Species of Seed Chalcids of the Genus Bruchophagus Ashm. (Hymenoptera, Eurytomidae) Developing in Eremurus sp. Seeds

Krivosheina N. P., Mamaev ┬. M. Revision of Materials on Morphology and Ecofogy of Xylophilic Assassin Flies Larvae of Tribe Laphnini (Diptera, Asilidae). Communication II. Laphria Mg. Genus

Kolybin V. A., Shvedova R. I. Breeding of Hyphantria cunea Drurˇ on Semisynthetic Nutrient Medium and Results of a Comparative Estimation of Different Media

Zhdanova T. G. Activity of Attack of Blood-Sucking Biting Midees (Diptera, Ceratopogonidae) Depending on Meteorological Conditions in the Left-Bank Polesie of the Ukraine

Ivanega I. G. On Fauna of Shell Rhizopoda (Testacea) from the Dniester Estuary

Gulai V. I .Structure of Populations and Number of Wader Waterfowl from the Upper South Bug

Brief Notes

Khmara P. Ya. Effect of a Certain Drop in Temperature on Embryos of the Apis mellifera Larvae

Boshko E. G., Pashkevichute A. S. New Species of Aeolosomatidae (Oligochaeta) from the Gils Cavity of Astacus leptodactylus leptodactylus from the Water Bodies of the Ukraine

Doroshina L. P. On Study of Food Relations of Plant Lice from the Genus Pemphigus Hartig. (Homoptera, Aphidoidea)

Sklyar I. Ya. New for Science Species of Slug from the Genus Deroceras (Gastropoda, Limacidae) from the Crimea

Ivantsiv V. V. Peculiarities in Distribution of Molluscs from the Family Unionidae in the Kremenchug Reservoir

Men of Science

Voron F. P., Lobanov N. V. In Memory of Vladimir Danilovich Treus

Criticism and Bibliography

Korneyev A. P. Review on the Book by T. N. Gagina źPublished Works by Professor V. N. Skalon╗

Akimov I. A. Review on the Book źDetermination Key of Mites Inhabiting Soil (Sarcoptiformes)╗

Information and News Items

Dolin V. G., ╩ţlˇbin I. A., Fedorenko A. P. The 8th International Congress on Plant Protection