SEASONAL ACTIVITY OF FEMALE BLACK FLIES (DIPTERA: SIMULIIDAE) IN PASTURES IN NORTHEASTERN SASKATCHEWAN

1990 ◽  
Vol 122 (5) ◽  
pp. 825-835 ◽  
Author(s):  
P.G. Mason ◽  
P.M. Kusters
Keyword(s):  
Abundant Species ◽  
Seasonal Activity ◽  
Black Flies ◽  
River Systems ◽  
Black Fly ◽  
The North ◽  
Peak Abundance ◽  
Trap Catches ◽  
North And South ◽  
Sweep Net

AbstractThe black fly species Simulium luggeri Nicholson and Mickel s.l., S. vittatum Zetterstedt s.l., S. venustum Say s.l., S. verecundum Stone and Jamnback s.l., and S. decorum Walker s.l. were collected in silhouette traps near Prince Albert, Sask., in 1986, and near Choiceland, Sask., from 1986 to 1988. The Prince Albert site was located between and within 2 km of the North and South branches of the Saskatchewan River and was 25 and 60 km south of the Whitefox River and Torch River systems. The Choiceland site, 60 km east of the Prince Albert site, was 15 km north of the main branch of the Saskatchewan River and 1/2 and 25 km south of the Whitefox River and Torch River, respectively. Simulium luggeri was the most abundant species collected at the Prince Albert site whereas S. luggeri, S. vittatum, and the S. venustumlverecundum complex were approximately equally abundant in trap catches near Choiceland over the entire season but in each study year a seasonal progression in peak abundance occurred. Black fly numbers in sweep net collections taken once, in the middle of the day, were weakly correlated with numbers in silhouette trap collections taken during an entire day.

ECOLOGY OF BLACK FLIES (DIPTERA: SIMULIIDAE) OF THE SOURIS RIVER, MANITOBA AS A BASIS FOR CONTROL STRATEGY

1981 ◽  
Vol 113 (3) ◽  
pp. 223-234 ◽  
Author(s):  
A. R. Westwood ◽  
R. A. Brust
Keyword(s):  
Control Program ◽  
Abundant Species ◽  
Pest Species ◽  
Black Flies ◽  
Black Fly ◽  
Simulium Vittatum ◽  
Late Instar ◽  
Simulium Decorum ◽  
Fly Control ◽  
Wire Cage

AbstractTen species of black flies were collected from the Souris River, Manitoba between April 1977 and October 1978. Adults of Simulium luggeri Nicholson and Mickel, Simulium meridionale Riley, Simulium venustum Say, Simulium verecundum Stone and Jamnback, and Simulium johannseni johannseni (Hart) were collected feeding on livestock and humans, and are well known pest species. Simulium vittatum Zetterstedt was the most abundant species, but was not a pest on man or domestic animals. Simulium tuberosum (Lundström) and Simulium johannseni duplex Shewell and Fredeen were the least abundant species. Simulium j. johannseni, S. j. duplex, S. venustum, S. verecundum, S. tuberosum, and Cnephia dacotensis (Dyar and Shannon) appeared to be univoltine species while S. luggeri, S. meridionale, Simulium decorum Walker, and S. vittatum were multivoltine in the Souris River.An evaluation of cone, plate, rope, and wire cage sampling devices for black fly larvae and pupae indicated that cone samplers provided a more representative sample for population assessment.In a black fly control program, of the Souris River, Manitoba two separate larvicide treatments in spring may be necessary. In the case of two treatments, the first should be aimed at late instar larvae of S. j. johannseni, S. venustum, and S. verecundum. Since the majority of S. luggeri and S. meridionale would be in the egg stage at this time, a second treatment, 10–14 days later, would be necessary to control late instar larvae of these species.

Control of Black Fly Larvae (Diptera: Simuliidae) in the Forests of Eastern Canada by Aircraft Spraying

1960 ◽  
Vol 92 (10) ◽  
pp. 745-754 ◽  
Author(s):  
A. S. West ◽  
A. W. A. Brown ◽  
D. G. Peterson
Keyword(s):  
Black Flies ◽  
Eastern Canada ◽  
Black Fly ◽  
North Shore ◽  
The North ◽  
Fly Larvae ◽  
And Control ◽  
St Lawrence River ◽  
Made In

The results reported in this paper are part of a study of the biology and control of black flies in the forests of Eastern Canada conducted on the north shore of the St. Lawrence River, near Baie Comeau, Quebec, during 1954, 1955, and 1956. Reference to this study is made in a review by Peterson and Wolfe (1958). The identification and biology of the black flies of this region has been reported on by Wolfe and Peterson (1959) who also describe the topography of the region. The important feature of this rugged area is an abundance of fast-flowing streams which provide highly suitable environments for the development of black-fly populations.

Control of Adult Black Flies (Diptera: Simuliidae) in the Forests of Eastern Canada by Aircraft Spraying

1960 ◽  
Vol 92 (9) ◽  
pp. 714-719 ◽  
Author(s):  
D. G. Peterson ◽  
A. S. West
Keyword(s):  
Life Histories ◽  
Black Flies ◽  
Eastern Canada ◽  
Black Fly ◽  
North Shore ◽  
The North ◽  
Fly Larvae ◽  
And Control ◽  
St Lawrence River

A study of the biology and control of black flies in the forests of Eastern Canada was conducted on the north shore of the St. Lawrence River, near Baie Comeau, Quebec, from 1954 to 1956. Reference was made to this study by Peterson and Wolfe (1958). Details on the identity of species, and studies on their life histories and habits were reported by Wolfe and Peterson (1959), while the control of black-fly larvae by aircraft spraying was described by West, Brown, and Peterson (in press). Experiments on the control of adult black flies by aircraft spraying are reported in this paper.

scholarly journals Seasonal Activity of the Horse Flies (Diptera, Tabanidae) from the Central Balkan Mountains, Bulgaria

2020 ◽  
Vol 18 (4) ◽  
pp. 319-327
Author(s):  
D. Ganeva ◽  
Iv. Ivanov
Keyword(s):  
Abundant Species ◽  
Seasonal Abundance ◽  
Seasonal Activity ◽  
Horse Flies ◽  
Peak Abundance ◽  
Balkan Mountains

The seasonal activity of the tabanids (Diptera: Tabanidae) was studied from May to September (2010-2011) in three localities on the territory of the Central Balkan Mountains. A total of 2232 specimens from 25 tabanid species and 8 genera were collected and processed. The first horse flies emerge in the first half of May and the last specimens were collected until mid-September. The tabanids reached their highest peak abundance in the first half of July. The most abundant species of the tabanid assemblages in the Central Balkan Mountains were Tabanus tergestinus Egg. (56.73 %), Tabanus bromius L. (12.71 %) and Haematopota pluvialis L. (8.87 %). The largest number of specimens of T. tergestinus was collected during the peak of the seasonal abundance of horse flies on the territory of the Central Balkan Mountains.

A revision of the family Stauroteuthidae (Octopoda: Cirrata) with redescriptions of Stauroteuthis syrtensis and S. gilchristi

2000 ◽  
Vol 80 (4) ◽  
pp. 685-697 ◽  
Author(s):  
Martin A. Collins ◽  
Camila Henriques
Keyword(s):  
North Atlantic ◽  
Valid Species ◽  
South Georgia ◽  
The North ◽  
The Family ◽  
New Material ◽  
Single Genus ◽  
The North Atlantic ◽  
Peak Abundance ◽  
North And South

The cirrate octopod family Stauroteuthidae is revised on the basis of new material collected from the North and South Atlantic and a thorough examination of relevant type material. The family is characterized by the presence of a secondary web, U-shaped shell vestige, reduced mantle aperture and with long cirri, not reaching the arm tips. The radula is absent. The family contains a single genus with two valid species, Stauroteuthis syrtensis and S. gilchristi, which are redescribed based on the holotypes and new material. Chunioteuthis ebersbachii is a junior synonym of S. syrtensis and C. gilchristi is placed in the genus Stauroteuthis. The genus Chunioteuthis is no longer valid. The form and arrangement of suckers distinguish the two species of Stauroteuthis. Stauroteuthis syrtensis is broadly distributed in the North Atlantic at depths of 700—4000 m with peak abundance at 1500—2500 m. Stauroteuthis gilchristi is known only from the type locality off Cape Town (2604 m) and from new material captured off South Georgia (1000 m).

Black flies (Diptera: Simuliidae) from Hardwicke Island, British Columbia

1982 ◽  
Vol 60 (12) ◽  
pp. 3364-3369 ◽  
Author(s):  
Jerome L. Mahrt
Keyword(s):  
British Columbia ◽  
Species Composition ◽  
Abundant Species ◽  
Seasonal Abundance ◽  
Black Flies ◽  
Black Fly

Nineteen species of immature simuliids (Diptera: Simuliidae) were collected from streams on Hardwicke Island in the Johnstone Straits of British Columbia. These species were Simulium aureum Fries, S. canadense Hearle, S. decorum Walker, S. hunteri Malloch, S. tuberosum Lundström complex, S. venustum Say – verecundum, Stone and Jamnback complex, Prosimulium dicum Dyar and Shannon, P. esselbaughi Sommerman, P. formosum Shewell, P. travisi Stone, Simulium anatinum Wood, S. bafftnense Twinn group, S. bicorne Dorogostajskij, Rubtzov and Vlasenko complex, S. gouldingi Stone, S. piperi Dyar and Shannon, S. pugetense (Dyar and Shannon), S. vernum Macquart complex, Prosimulium doveri Sommerman, and Stegopterna sp. Enderlein. The last nine species have not been reported previously from British Columbia. Species composition, succession, and seasonal abundance of larvae and pupae were determined from April to August of 1980 and 1981. Simulium venustum–verecundum complex and S. hunteri were the most abundant species in 1980, while S. hunteri and S. vernum complex were most abundant in 1981. Black fly productivity was greatly reduced in 1981.

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