Зоологический журнал

Moulting in the little bunting (Emberiza pusilla)

Ryzhanovsky V.N.

Materials on postjuvenile and postnuptial moulting of the little bunting in the Lower Ob' river territory (66.5° North) are presented. The postjuvenile moulting is only a partial one; the contour plumage of the body and a part of the coverts are changed in its process. Buntings marked in the nests began the postjuvenile moulting when they were 17 to 23 days old; individual duration of the moulting was 40 to 45 days according to the results of repeated catchings and 38 to 50 days in different years according to the calculations on the basis of regression equations. The birds began to migrate before the moulting was completed. The whole plumage is involved in the postnuptial moulting which is partly combined with feeding the nestlings. The moulting lasts 39 to .55 days according to the results of repeated catchings; the mean seasonal duration of "the moulting was 34 to 56 days in different years. The birds began the autumnal migration after their remiges were grown.

Torymus isajevi sp. n. (Hymenoptera, Torymidae), a parasite of the larch bud midge

Dolgin M.M.

Torymus isajevi sp. n. parasitizes on Dasyneura rozhkovi, a widely distributed in Siberia pest of the Siberian larch and the Dahurian larch. The species described is most closely related to T. caudatis Boheman and differs from it by the considerably shorter Ovipositor, by the slightly shorter abdomen, by the more rounded head, and by shorter segments of the flagellum in both sexes.

ПИЩЕВЫЕ РЕСУРСЫ ТУНДРОВЫХ КУЛИКОВ И ОСОБЕННОСТИ ИХ ПОВЕДЕНИЯ В РЕПРОДУКТИВНЫЙ ПЕРИОД

ХЛЕБОСОЛОВ Е.И.

СТРУКТУРА ВИДА RUTILUS RUTILUS (L.) В БАССЕЙНЕ КАСПИЙСКОГО МОРЯ

МИРОНОВСКИЙ А.Н., КАСЬЯНОВ А.Н.