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Document type:
Proceedings Paper 
Author(s):
Abbt, Viktoria; Gruppe, Axel; Aspoeck, Horst; Aspoeck, Ulrike 
Title:
Influence of the Wintering Period on the Metamorphosis in Raphidioptera Larvae 
Abstract:
Larval development of Raphidioptera takes one to three (sometimes even more) years with an obligatory cold stimulus to trigger regular ontogenesis. However, the quality of the stimulus has been unknown so far. Therefore mature larvae of Mongoloraphidia sororcula (ASPOCK & ASPOCK, 1966), Phaeostigma notata (FABRicius, 1781) and Raphidia mediterranea (ASPOCK, ASPOCK & RAUSCH, 1977) were experimentally hibernated for different periods of time at 4 C. Thereafter development was observed until onset of pupation. For all species the cold stimulus was sufficient for pupation, but rates of successful development were significantly different in the three species. Results are discussed with reference to the aspect of specific adaptation to environmental conditions and of synchronization of development. 
Keywords:
Raphidioptera; development; hibernation; cold stimulus; Mongoloraphidia sororcula; Phaeostigma notata; Raphidia mediterranea 
Book / Congress title:
MITTEILUNGEN DER DEUTSCHEN GESELLSCHAFT FUR ALLGEMEINE UND ANGEWANDTE ENTOMOLOGIE, BD 21 
Congress (additional information):
Entomology Congress, Freising, GERMANY, MAR 13-16, 2017 
Volume:
21 
Organization:
German Soc Gen Appl Entomol; Austrian Entomol Soc; Swill Entomol Soc 
Publisher:
DEUTSCHEN GESELL ALLGEMEINE & ANGEWANDTE ENTOMOLOGIE 
Publisher address:
C/O PROF D MOSSAKOWSKI, UNIV BREMEN, POSTFACH 330 440, W-2800 BREMEN 33, GERMANY 
Year:
2018 
Pages:
305-308 
Bookseries title:
Mitteilungen der Deutschen Gesellschaft fur Allgemeine und Angewandte Entomologie 
Language:
German