CHARACTERISTICS OF THE DEVELOPMENT CYCLES OF DIURNAL LEPIDOPTERA (LEPIDOPTERA: HESPERIOIDEA, PAPILIONOIDEA) ON THE TERRITORY OF UDMURTIA

Abstract

The typology of the life cycles of diurnal lepidoptera of Udmurtia is carried out using such ecological and biological indicators as the duration of generation development (number of years), the level of voltinism during the growing season, seasonal features of the imago flight, development stages at which the winter diapause occurs and its territorial confinement. On this basis, 24 types of cycles have been singled out. Species with annual development (96.7 %) and one generation during the growing season (76.4 %) are strongly predominant. According to the timing of flight, the bulavous are divided into 5 phenological groups, the proportion of which is as follows: spring - 13.8 %, pre-summer - 11.4 %, early-summer - 36.6 %, mid-summer - 35.8 %, late-summer - 2.4 %. Wintering of species is carried out at all stages of development with a predominance of larval diapause (61.5 %). Such species as Vanessa atalanta and V. cardui have the status of ex-regional migrants. The latter species is characterized by diapause-free polycyclic development throughout the year. In addition, the forms of facultative bivoltinism and summer diapause are considered.