The ecology, biology and larval instars of the North Caucasian population (Lake Maliy Tambukan) of Tipula subcunctans Alexander, 1921 (Diptera: Tipulidae)

Abstract

Different aspects of ecology, biology and regional distribution of Tipula subcunctans in the North Caucasus (Lake Maliy Tambukan, 12 km south-east of Pyatigorsk) are investigated. Abundance of larvae, fecundity of females, mode of oviposition and other data are presented. First instar larvae are described and the existence of two morphological forms of fourth instar larvae is demonstrated.