Life cycle of natural populations of Metriocnemus (Inermipupa) carmencitabertarum Langton & Cobo 1997 (Diptera: Chironomidae) in The Netherlands: indications for a southern origin?

The life-history and behaviour of the chironomid Metriocnemus (Inermipupa) carmencitabertarum was studied for three years and a comparison was made between two populations in the Netherlands. Key life-history characteristics are reported, including the number of generations (2-5 generations) and duration of larval development (19-55 days). Life-history characteristics differed between the two populations and between generations within a population. These differences were likely related to differences in competitors (mainly Chironomus riparius Meigen) and thermal characteristics of the habitat... Mehr ...