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Hybomitra illota Reference

Only a few individuals have been captured to date. Teskey (1990) considers this species to be one of the most common species across Canada and the northern USA. It is characteristic of boggy areas and is an aggressive feeder on both humans and livestock.

Summary Statistics for ALL trap and bait combinations
Interpret relative to approximate number of traps used each year

Year First
Capture
Last
Capture
Flight Season (days) Daily Max Catch Date of Max Catch Total catch
Female
2001 - 1 20 Jun         1
2002 - 2           0
2003 - 5 18 Jun         1
2004 - 7 8 Jun 17 Jul 40 1   3
2005 - 10 21 Jun to
7 Jul
        1
2006 - 7           0
2007 - 9 8 Jun         1
2008 ~ 4           0
Teskey (1960) caught small numbers in a farming area near Guelph, Ontario with captures in June only. In contrast, H. illota was the second most common horse fly captured in a forested area at Algonquin Park in Ontario by Smith et al. (1970), with a prolonged flight season extending to mid-August. The species was also captured by Davies (1959) at the same location. H. illota is abundant in northern forested areas of Manitoba (Hanec & Bracken, 1964) and Alberta (Thomas, 1970). In other studies, it is typically only a minor component of the horse fly community.

H. illota was one of the common species present during the exploratory studies leading to the development of the Manitoba horse fly trap (Bracken et al., 1962). Behaviour towards colours, shapes, etc. was documented in Manitoba, and for a much smaller catch, in New Brunswick (Browne & Bennett, 1980).  Taylor & Smith (1990) published a unique paper on this species, based on observations of aggregating males at Rondeau Provincial Park near Lake Erie in SW Ontario.

Thomas (1973) dissected a large sample of flies from Alberta to determine reproductive status. Magnarelli (1976) in New York, and Magnarelli & Anderson (1981) in Connecticut also dissected small numbers. The species appears to be anautogenous, producing eggs only after intake of a blood meal. Hunter & Ossowski (1999) documented sugar feeding in a large sample from Algonquin Park. Teskey (1969) provides information on the biology of immatures and their habitats in Canada.

Krinsky & Pechuman (1975) cultured epimastigote trypanosomes from this species in New York that were most likely bovid Trypanosoma theileri parasites.

Hybomitra illota

Baribeau, L. & Maire, A. (1983) Abundance and seasonal distribution of Tabanidae in a temperate and in a subarctic locality of Québec. Mosquito News 43, 135-143.

Bennett, G.F. & Smith, S.M. (1968) Phosphorous32 for marking Tabanidae (Diptera). Mosquito News 28, 559-569.

Bracken, G.K., Hanec, W. &  Thorsteinson, A.J. (1962) The orientation of horse flies and deer flies (Tabanidae: Diptera) II. The role of some visual factors in the attractiveness of decoy silhouettes. Canadian Journal of Zoology 40, 685-695.

Browne, S.M. & Bennett, G.F. (1980) Color and shape as mediators of host-seeking responses of simuliids and tabanids (Diptera) in the Tantramar marshes, New Brunswick, Canada. Journal of Medical Entomology 17, 58-62.

Cameron, A.E. (1926) Bionomics of the Tabanidae (Diptera) of the Canadian Prairie. Bulletin of Entomological Research 17, 1-42.

Cobb, P.E. & Balsbaugh, E.U.,Jr. (1976) The Tabanidae (Diptera) of Spink County, South Dakota. Journal of the Kansas Entomological Society 49, 514-520.

Davies, D.M. (1959) Seasonal variation of tabanids (Diptera) in Algonquin Park, Ontario. Canadian Entomologist 91, 548-553.

Hanec, W. & Bracken, G.K. (1964) Seasonal and geographical distribution of Tabanidae (Diptera) in Manitoba, based on females captured in traps. Canadian Entomologist 96, 1362-1369.

Hayes, R.M. & Meyer, H.J. (1990) Daily and seasonal flight activity of Tabanidae (Diptera) in the North Dakota sandhills. pp. 683-690 in Hayes, D.K., Pauly, J.E. &  Reiter, R.J. (Ed) Chronobiology: its role in clinical medicine, general biology, and agriculture, part B. Proceedings of the XIX International Conference of the International Society for Chronobiology, June 20-24, 1989.  

Hunter, F.F. & Ossowski, A.M. (1999) Honeydew sugars in wild-caught female horse flies (Diptera: Tabanidae). Journal of Medical Entomology 36, 896-899.

Krinsky, W.L. & Pechuman, L.L. (1975) Trypanosomes in horse flies and deer flies in central New York state. Journal of Parasitology 61, 12-16.

Lewis, D.J. & Bennett, G.F. (1977) Biting flies of the eastern maritime provinces of Canada. I. Tabanidae. Canadian Journal of Zoology 55, 1493-1503.

Magnarelli, L.A. (1976) Physiological age of Tabanidae (Diptera) in eastern New York state, U.S.A. Journal of Medical Entomology 12, 679-682.

Magnarelli, L.A. & Anderson, J.F. (1981) Sugar feeding by female tabanids (Diptera: Tabanidae) and its relation to gonotrophic activity. Journal of Medical Entomology 18, 429-433.

McElligott, P.E.K. & Galloway, T.D. (1991a) Seasonal distribution and parity of host-seeking horse flies (Diptera: Tabanidae) from a pasture near Seven Sisters, Manitoba. Canadian Entomologist 123, 361-370.

McElligott, P.E.K. & Galloway, T.D. (1991b) Daily activity patterns of host-seeking horse flies (Diptera: Tabanidae: Hybomitra spp.) in northern and southern Manitoba. Canadian Entomologist 123, 371-378.

Ralley, W.E., Galloway, T.D. &  Crow, G.H. (1993) Individual and group behaviour of pastured cattle in response to attack by biting flies. Canadian Journal of Zoology 71, 725-734.

Smith, S.M., Davies, D.M. &  Golini, V.I. (1970) A contribution to the bionomics of the Tabanidae (Diptera) of Algonquin Park, Ontario: seasonal distribution, habitat preferences, and biting records. Canadian Entomologist 102, 1461-1473.

Strickler, J.D. & Walker, E.D. (1993) Seasonal abundance and species diversity of adult Tabanidae (Diptera) at Lake Lansing Park-North, Michigan. Great Lakes Entomologist  26, 107-112.

Taylor, P.D. & Smith, S.M. (1990) Behaviour, physiological states and thermal characteristics of aggregating male Hybomitra illota (Diptera: Tabanidae). Medical and Veterinary Entomology 4, 337-348.

Teskey, H.J. (1960) Survey of insects affecting livestock in southwestern Ontario. Canadian Entomologist 92, 531-544.

Teskey, H.J. (1969) Larvae and pupae of some eastern North American Tabanidae. Memoirs of the Entomological Society of Canada 63, 147 pp.

Thomas, A.W. (1970) Seasonal occurrence and relative abundance of Tabanidae (Diptera) in three localities in Alberta. Quaestiones entomologicae 6, 293-301.

Thomas, A.W. (1973) Follicle developmental stages in blood-seeking horseflies (Diptera: Tabanidae) in Alberta, Canada.  Journal of Medical Entomology 10, 325-328.

White, D.J., Green, K. &  Pechuman, L.L. (1983) New distribution records of nine species of Tabanidae (Diptera) from the Northern Adirondack Mountain Region of New York State, USA. Journal of Medical Entomology 20, 689.

 

Updated
26-Dec-2008