Weibchen- und Gelegegröße bei Anopheles messeae messeae Falleroni 1926 (Diptera, Culicidae)

Abstract

The problems discussed are concerned with the relations between the size of the females and their clutch size of this species by investigation of a great number of mosquitoes out of the open land and their clutch of eggs obtained in the laboratory. It was found a relation between the size of the females and the number of their eggs deposited. These problems were regarded in connection with different factors e. g. air temperature, temperature in the breeding biotopes during the active period of the imagines in each single month and relation to the ratio of size of females and the clutch of every size category. The results obtained concerning the ratio of size of the females and the clutch atAnopheles m. messeae show a series of agreements on principle with results relating obtained by the author withAnopheles claviger (Meigen, 1804).

Zusammenfassung

Die Untersuchung mehrerer tausend im Freiland gesammelter Mücken vonAnopheles messeae messeae Falleroni und ihrer im Labor abgelegten Eier ergab eine Bezichung zwischen Weibchengröße und Zahl abgelegter Eier: Die mittlere Eizahl pro Gelege nahm mit der Körpergröße der Weibchen zu. Dieser Befund ist von praktischer Bedeutung, da er an Hand einer gesammelten Teilpopulation eine Prognose der zu erwartenden Nachkommenzahl (unter Ausschluß dichtesenkender Umweltfaktoren) ermöglicht.