The morphology of the larval instars of Chaoborus flavicans (Meigen, 1818) (Diptera, Chaoboridae)

This paper contains a description of the four larval instars of Chaoborus flavicans (Meigen, 1818). Several morphometric data, especially of head parts, are given. Except the length of the head capsule other quantitative and qualitative characters prove to be instar specific. A key for macroscopic identification is included