SEASONAL DISTRIBUTION AND PARITY OF HOST-SEEKING HORSE FLIES (DIPTERA: TABANIDAE) FROM A PASTURE NEAR SEVEN SISTERS, MANITOBA

1991 ◽  
Vol 123 (2) ◽  
pp. 361-370 ◽  
Author(s):  
Paul E.K. McElligott ◽  
Terry D. Galloway

AbstractTwenty species of Tabanidae in three genera [Hybomitra (15 spp.), Tabanus (four spp.), Haematopota (one sp.)] were caught in Manitoba horse fly traps from mid-May to mid-July in 1987, and from mid-May to mid-August in 1988. Hybomitra lurida (Fallen) and H. nitidifrons nuda (McDunnough) peaked in abundance in late May to early June; H. illota (Osten Sacken) and H. lasiophthalma (Macquart) in early June; H. affinis (Kirby), H. arpadi (Szilady), and H. zonalis (Kirby) in mid-June; H. epistates (Osten Sacken) and H. pechumani Teskey and Thomas in late June to early July. Abundance of H. trepida (McDunnough) peaked twice, in late June and early August. Tabanid density and diversity were greatest during June; few flies were present at the site after mid-July. For most species, at the beginning of the flight season, 80–100% of flies dissected were nulliparous. After approximately 1 month of flight activity, parity in all but three species reached levels approaching 100%, and remained high thereafter. Hybomitra lurida and H. nitidifrons nuda were 100% parous within 2 weeks of their first appearance in traps. Parity of H. trepida increased to 100% after 4 weeks, declined to 40% 2 weeks later, and returned to 100% after another 2 weeks.

1991 ◽  
Vol 123 (2) ◽  
pp. 371-378 ◽  
Author(s):  
Paul E.K. McElligott ◽  
Terry D. Galloway

AbstractDaily patterns of host-seeking activity by female tabanids were determined by hourly trapping (0530–2230 hours) with Manitoba horse fly traps at Seven Sisters, Man., 4 days a week, throughout the summer of 1988. Hybomitra epistates (Osten Sacken) and H. pechumani Teskey and Thomas were most active during late morning or mid-day; H. arpadi (Szilady) and H. zonalis (Kirby) in early afternoon; H. affinis (Kirby), H. illota (O.S.), and H. lasiophthalma (Macquart) in late afternoon; H. nitidifrons nuda (McDunnough) and H. lurida (Fallen) in early evening.The morning onset of tabanid flight activity usually was related to temperature, but the cessation of activity in the evening was related either to temperature or light, depending on which was first to fall below threshold levels. Tabanid flight activity was generally low at temperatures below 20°C, although H. lasiophthalma and H. affinis occasionally were caught at 12°C. Little flight activity occurred at light intensity levels below 1000 lx regardless of temperature. At Churchill, Man., where tabanids were trapped hourly from 27 July to 15 August in 1988, H. affinis and H. frontalis (Walker) activity was low below 14°C, although some activity occurred at 6°C.


Check List ◽  
2015 ◽  
Vol 11 (2) ◽  
pp. 1596 ◽  
Author(s):  
Helena Iris Leite de Lima ◽  
Tiago Kütter Krolow ◽  
Augusto Loureiro Henriques
Keyword(s):  
One Year ◽  

A list of horse fly species is presented for the district of Taquaruçu, Palmas, Tocantins, Brazil . A total of 34 species and three varieties were recorded over one year of collections. From those, 21 species and one variety were new records for the state.


2002 ◽  
Vol 48 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Rebekah W Moulder ◽  
Frank E French ◽  
C J Chang

Traditionally, isolation, maintenance, and testing of Spiroplasma species (Mollicutes: Entomoplasmatales) from horse flies (Tabanus spp.) and deer flies (Chrysops spp.) (Diptera: Tabanidae) have been accomplished in the complex M1D medium. A relatively inexpensive, simplified medium for tabanid spiroplasmas could expedite procedures that require large quantities of growth medium. Nine strains of spiroplasmas, eight from tabanids and one from mosquitoes, were cultured in three simplified broth media, R2, R8-1, and C-3G, and in M1D. There was no significant difference in the rate of spiroplasma growth in M1D and the three simplified media. R2medium supported the growth of tabanid spiroplasmas more consistently and with better morphology through 10 subcultures than did the other simplified media. Primary isolations were made in R2medium from tabanids collected (i) in Georgia, U.S.A., with 10 isolations from 10 flies and (ii) in coastal Costa Rica, with isolation rates of 70% (28/40) and 73% (27/37), respectively, for R2and M1D. Of the seven group VIII field isolates from Costa Rica, four were capable of sustained growth in R2, and three were triply cloned in this simplified medium. These results suggest that the simplified medium R2is suitable for many procedures with tabanid spiroplasmas.Key words: simplified media, Mollicutes, spiroplasma, tabanid, horse fly.


1978 ◽  
Vol 56 (7) ◽  
pp. 1546-1549
Author(s):  
A. W. Thomas

Forty-three species of tabanids in five genera are recorded from New Brunswick. Locality data, notes on seasonal distribution, and relative abundance are given. Modifications to keys of tabanids of the Maritime Provinces are given.


2019 ◽  
Vol 68 (3) ◽  
pp. 263-274 ◽  
Author(s):  
Jan Ježek ◽  
Jan Votýpka ◽  
Jana Brzoňová ◽  
Jozef Oboňa

Abstract A zoogeographical review summarized the current distribution of 28 morphologically determined horse fly species recently collected in three Western Africa countries. In Malaise trap collections, the family Tabanidae was represented by three subfamilies, Pangoniinae, Chrysopsinae and Tabaninae (tribes Philolichini, Chrysopsini, Tabanini and Haematopotini), and six genera: Philoliche Wiedemann, 1828 (1 species), Chrysops Meigen, 1803 (3 specis), Ancala Enderlein, 1922 (2 species), Euancala Enderlein, 1922 (1 species), Tabanus Linnaeus, 1758 (13 species) and Haematopota Meigen, 1803 (8 species). Information contained in the principal publication The Catalogue of the Diptera of the Afrotropical Region 1980 is complemented by newly published studies on horse flies in Sub-Saharan Africa.


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