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On the morphology, biology and behaviour of the larval Pamphilius vafer (Linnaeus) (Hymenoptera: Pamphiliidae)
Author(s) -
Pieronek Barbara
Publication year - 1978
Publication title -
zeitschrift für angewandte entomologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0044-2240
DOI - 10.1111/j.1439-0418.1978.tb02451.x
Subject(s) - larva , instar , diapause , biology , anthomyiidae , zoology , botany
The larvae of Pamphilius vafer (L.) feed as leaf‐rollers on alder, especially on Alnus incana (L.) Mnch. There are 5 or 6 larval instars, but individuals with five stages were more numerous. Larval feeding life lasted from 15 to 18 d. During this period a single larva consumed 1 to 3 medium size leaves of alder. The specific morphological and physiological adaptations enable the larva to dwell in the rolled leaf. The larvae of P. vafer pass their state of rest in earth without cocoons. Diapause lasted about 10 months. Zusammenfassung Zur Morphologie, Biologie und Ethologie der Larven von Pamphilius vafer (L.) (Hym.: Pamphiliidae) Die Larve vom Pamphilius vafer (L.) frißt an der Erle, vorwiegend an Alnus incana (L.) Mnch., in Blattröhren. Die Art hat 5 oder 6 Larvenstadien, wobei 5 Stadien überwiegen. Die Larvenperiode dauert 15 bis 18 Tage. Während dieser Periode frißt die Larve 1–3 Erlenblätter mittlerer Größe. Die speziellen morphologischen und physiologischen Anpassungen erlauben der Larve, in einer Blattröhre zu leben. Die Ruheperiode verbringen die Larven im Boden, ohne Kokons. Die Diapause dauert ca. 10 Monate.

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