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Aphis fabae (Aphididae) - Geburt


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Title Aphis fabae (Aphididae) - Geburt
Alternative Title Aphis fabae (Aphididae) - Birth
Author Gries, Gerhard
Sanders, Werner
License CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.3203/IWF/E-2934
IWF Signature E 2934
Publisher IWF (Göttingen)
Release Date 1986
Language Silent film
Producer IWF
Production Year 1985

Content Metadata

Subject Area Life Sciences
Abstract Ungeflügelte Weibchen (Virgines) der Schwarzen Bohnenlaus gebären parthenogenetisch Jungtiere. Einzelne Phasen der Geburt: Austreten des Embryos, Aufplatzen der Embryonalhülle, Abstreifen der Hülle und Freiwerden der Gliedmaßen.
Two examples document the birth process. With several quick thrusts the virgo forces the young louse out of oviduct with its abdomen forward. With the head remaining in the oviduct of the virgo, the young louse bursts open the embryonal sheath along the preformed dorsal suture. The embryonal sheath is stripped off by continous displacement of the haemolymph. After the legs of the young louse have been freed from the sheath and have a hold on the back of a conspecific, the virgo disconnects itself from the newly born larva by a twishing movement of the abdominal tip.
Keywords Virgo
Geburt / Insecta
Aphis fabae
Schwarze Bohnenlaus
Laus / Bohnenlaus
birth / Insecta
black bean aphid
Aphis fabae

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