caa a22 4500 388093374 CHVBK 20180307125257.0 cr unu---uuuuu 161130e199906 xx s 000 0 eng 10.4039/Ent131347-3 doi S0008347X00009962 pii (NATIONALLICENCE)cambridge-10.4039/Ent131347-3 HYMENOPTEROUS PARASITOIDS OF FILTH FLY (DIPTERA: MUSCIDAE) PUPAE IN CATTLE FEEDLOTS [Elektronische Daten] Results of a 2-year survey in Alberta, Canada, identified a parasitoid fauna of filth flies distinct from that generally reported for cattle confinements in the United States. Twenty-two feedlots were surveyed using freeze-killed sentinel house fly pupae. Parasitism averaged 0.25%. Ten species of hymenopterous parasitoids were recovered. As a percentage of the total number of pupae parasitized, these species were Muscidifurax raptor Girault & Saunders (37.4%), Trichomalopsis sarcophagae Gahan (23.9%), Urolepis rufipes (Ashmead) (18.5%), Muscidifurax zaraptor Kogan & Legner (6.9%), Nasonia vitripennis Walker (6.5%), Trichomalopsis sp. (3.7%) (Pteromalidae), Phygadeuon sp. (2.9%) (Ichneumonidae), Dibrachys cavus (Walker) (0.1%) (Pteromalidae), Synacra sp. (0.1%) (Diapriidae), and an unidentified Braconidae (0.1%). No differences were detected among natural regions of the province. Three categories of seasonal activity are identified which expand on previous groupings of species by their geographic distributions. The abundance of T. sarcophagae and rarity of species of Spalangia Latreille, 1805 are in marked contrast to results of surveys conducted in the United States. This difference suggests that species used to manage populations of pestiferous flies associated with livestock in the United States could be inappropriate for use in Canada. Copyright © Entomological Society of Canada 1999 Floate K. Lethbridge Research Centre, Agriculture and Agri-Food Canada, P.O. Box 3000, Lethbridge, Alberta, Canada T1J 4B1 Khan B. Alberta Agriculture, Food and Rural Development, 7000-113 Street, Edmonton, Alberta, Canada T6H 5T6 Gibson G. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K.W. Neatby Building, 960 Carling Avenue, Ottawa, Ontario, Canada KIA OC6 The Canadian Entomologist Cambridge University Press 131/3(1999-06), 347-362 0008-347X 131:3<347 1999 131 TCE https://doi.org/10.4039/Ent131347-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131347-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Floate K. Lethbridge Research Centre, Agriculture and Agri-Food Canada, P.O. Box 3000, Lethbridge, Alberta, Canada T1J 4B1 NATIONALLICENCE 700 1- Khan B. Alberta Agriculture, Food and Rural Development, 7000-113 Street, Edmonton, Alberta, Canada T6H 5T6 NATIONALLICENCE 700 1- Gibson G. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K.W. Neatby Building, 960 Carling Avenue, Ottawa, Ontario, Canada KIA OC6 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/3(1999-06), 347-362 0008-347X 131:3<347 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge