[Syrphidae] frost tolerance pupae Cheilosia Syrphidae

Gilbert Francis Francis.Gilbert at nottingham.ac.uk
Thu Nov 22 21:45:34 GMT 2007

hi Frank

Brunel E & Cadou D (1990) [ Evidence for nymphal diapause in <Cheilosia vulpina> Meigen (Diptera, Syrphidae), a pest of artichoke ]. Mise en évidence d'une diapause nymphale chez <Cheilosia vulpina> Meigen (Diptera, Syrphidae) ravageur de l'artichaut. Coll Inst Nat Rech Agron 52:47-50
This overwinters as a pupa, and there are some simple expts on what their tolerances are

Gao JF, Zhang GX, Qin YC, Yu K, Li MH & Qin Y (1993) [ Field survey on the overwintering of syrphids in Changbai mountains, and experiments on artificial protection of the overwintering syrphid flies ] Chinese J Biol Control 9(3): 142 (translation appended)
This has some interesting data too on mortality and overwintering temperature

Zabirov ShM (1963) [ On the ecology of the Onion Bulb Fly Eumerus strigatus Fall. (Diptera, Syrphidae) ] 
Ent Obozr 42(4): 736-743
He studied diapause and surviving cold in Eumerus, but not as pupae, of course

AG Sokolova & NS Turayev (1974) [ Studies on the biology of the onion flies Eumerus tuberculatus Rondani and Eumerus strigatus Fallen ]Trudi Sverdlovskogo Sel’skokhozyaistvennogo Instituta 1974: 55-81
They do the same, but much from the adult viewpoint, trying to explain adult phenology.

Greig C (1988)Survival tactics in the overwintering larva of <Myiathropa florea> Hoverfly Newsl 7: 5	
Greig C (1989) Overwintering behaviour of the larva of <Myiatropa florea> (L.) (Diptera, Syrphidae). Dipterists Digest	2:11-16
Some interesting data on overwintering larvae and ice

Gladis T (1989) [ The utilization of local insects (Hymenoptera & Diptera) as pollinators for crops in the Gatersleben gene-bank ]. Die Nutzung einheimischer Insekten (Hymenopteren und Dipteren) zur Bestäubung von Kulturpflanzen in der Genbank Gatersleben. Kulturpflanze 37: 79-126
Some data on expts with overwintering Myathropa in culture

Maibach A & Goeldlin de Tiefenau P (1991) [ <Platycheirus perpallidus> Verrall (Diptera, Syrphidae) new to the Swiss fauna: morphology of the immature stages and description of the life cycle ]. <Platycheirus perpallidus> Verrall (Diptera, Syrphidae) nouveau pour la faune de Suisse: morphologie des stades immatures et description du cycle de développement. Bull Soc Vaud Sci Nat 80: 341-356
Alain observed frozen L3 larvae overwintering on Carex, and still surviving


Dr Francis Gilbert
website: www.nottingham.ac.uk/~plzfg
BioMAP: www.biomapegypt.org

-----Original Message-----
From: syrphidae-bounces at lists.nottingham.ac.uk [mailto:syrphidae-bounces at lists.nottingham.ac.uk] On Behalf Of Frank Dziock
Sent: 20 November 2007 13:51
To: Hoverfly discussion list
Subject: [Syrphidae] frost tolerance pupae Cheilosia Syrphidae

Hash: SHA1

Dear Syrphid friends!

in an analysis of a European hoverfly data set we recognized that
especially the group of phytophagous species seems to be negatively
influenced by mean annual temperatures. One explanation could be that
Cheilosia overwinters as a pupa which might be potentially more
sensitive to freezing in Winter than species overwintering as a larva.

Are there any references concerning winter/frost hardiness of Syrphid
species overwintering as a pupa? (I know of the work by Hart et al.
concerning Syrphus ribesii (larval overwinterer) and Episyrphus and
Hondelmann for Episyrphus (adult overwinterer))

I would be very glad to receive any hints.

Best wishes from cold Berlin,


- --

Prof. Dr. Frank Dziock
Animal Ecologist and Head of Department (Juniorprofessor)

Department of Biodiversity Dynamics
Technische Universitaet Berlin
Sekr. AB 1
Rothenburgstr. 12
D - 12165 Berlin

Tel: 030 – 314 71368

Secretary Gisela Falk
gisela.falk at tu-berlin.de
Tel: 030 - 314 71350
Fax: 030 – 314 71355


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