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Hymenopterous parasitoids of house fly and stable fly puparia in Prince Edward Island and New Brunswick, Canada

Published online by Cambridge University Press:  02 April 2012

C. Noronha ,
G.A.P. Gibson  and
K.D. Floate
C. Noronha
Affiliation:
Agriculture and Agri-food Canada, Crops and Livestock Research Centre, 440 University Avenue, Charlottetown, Prince Edward Island, Canada C1A 4N6
G.A.P. Gibson
Affiliation:
Agriculture and Agri-Food Canada, Biodiversity and Integrated Pest Management, K.W. Neatby Building, 960 Carling Avenue, Ottawa, Ontario, Canada K1A 0C6
K.D. Floate*
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, 5403 – 1st Avenue South, Lethbridge, Alberta, Canada T1J 4B1
*
1Corresponding author (e-mail: floatek@agr.gc.ca).
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Abstract

Puparia of house flies, Musca domestica L., and stable flies, Stomoxys calcitrans (L.) (Diptera: Muscidae), were collected on dairy farms in Prince Edward Island (PEI) and New Brunswick (NB) and held for emergence of hymenopterous parasitoids. Percent parasitism for PEI in 2003 and 2004 was 6.7 (n = 10 060 puparia) and 1.0 (n = 36 992 puparia), respectively. Percent parasitism for NB was not determined in 2003, but was 9.1% (n = 3052 puparia) in 2004. A parasitoid provisionally identified as Phygadeuon ?fumator Gravenhörst (Ichneumonidae) predominated in both provinces. Additional species recovered included Aphaereta pallipes (Say) (Braconidae) and Muscidifurax raptor Girault and Saunders, Spalangia cameroni Perkins (PEI only), Spalangianigra Latreille (NB only), Spalangia subpunctata Förster (NB only), Trichomalopsis americana (Gahan) (PEI only), and Urolepis rufipes (Ashmead) (Pteromalidae). Dissection of host puparia from which neither flies nor wasps emerged yielded a relatively large number of additional parasitoids, particularly S. nigra.

Résumé

Nous avons récolté des pupariums de mouches domestiques, Musca domestica L., et de mouches piquantes des étables, Stomoxys calcitrans (L.) (Diptera: Muscidae), dans des fermes laitières de l'Île-du-Prince-Édouard (PEI) et du Nouveau-Brunswick (NB) et les avons gardés en élevage jusqu'à l'émergence des hyménoptères parasitoïdes. Le pourcentage de parasitisme était respectivement de 6,7 (n = 10 060 pupariums) et de 1,0 (n = 36 992 pupariums) en 2003 et 2004 à PEI. Le pourcentage de parasitisme au NB n'a pas été déterminé en 2003, mais en 2004 il était de 9,1 (n = 3052 pupariums). Le parasitoïde dominant dans les deux provinces est identifié de façon provisoire comme Phygadeuon ?fumator Gravenhörst (Ichneumonidae). Les autres espèces obtenues incluent Aphaereta pallipes (Say) (Braconidae), ainsi que Muscidifurax raptor Girault et Saunders, Spalangia cameroni (Perkins) (PEI seulement), S. nigra Latreille (NB seulement) S. subpunctata Förster (NB seulement), Trichomalopsis americana (Gahan) (PEI seulement) et Urolepis rufipes (Ashmead) (tous des Pteromalidae). La dissection des pupariums des hôtes d'où n'ont émergé ni mouches ni guêpes a fourni un nombre relativement grand d'autres parasitoïdes, principalement des S. nigra.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 139 , Issue 5 , October 2007 , pp. 748 - 750
Copyright
Copyright © Entomological Society of Canada 2007

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