Landscape and zonal distribution of bloodsucking mosquitoes and horseflies (Diptera: Culicidae,Tabanidae) in the northeastern Russian Plain

Analysis of landscape and zonal changes in the species diversity and abundance of 34 species of bloodsucking mosquitoes and 42 species of horseflies in the northeastern Russian Plain was carried out. The species diversity of both families is reduced from south to north. Two steps of faunistic depletion can be revealed: at the boundary of the middle and northern taiga (both mosquitoes and horseflies) and at the boundary of the extreme northern taiga and the forest-tundra (horseflies only). Species whose northern and southern distribution boundaries lie within the territory studied are listed.     

Entomophthora tabanivora, a new pathogen in horseflies (Diptera: Tabanidae)

Entomophthora tabanivora n. sp. is described from a parous Tabanus nigrovittatus. Conidiophores were abundant on the membranous areas of the head, thorax, and anterior abdominal sternites. They were determinate, macronemous, unbranched, cream-colored, and measured 89.1 × 18.9 μm. Primary conidia were multinucleate, broadly pyriform, and measured 36.7 × 32.4 μm. Hyphal bodies were branched, coenocytic, and averaged 54.8 μm long and 15.3 μm wide.     

Contributions to the mosquito fauna (Diptera, Culicidae) of Belgorod Province

The results of long-term studies of mosquitoes in Belgorod Province are reported. The material was collected at 54 sites situated in 15 districts of the province. Different biotopes were investigated during the spring-autumn period. Larvae and adult mosquitoes were used for identification. A total of 27 mosquito species were found in the region examined. The following species were recorded for the first time: Ae. (Och.) communis. Ae. (Och.) diantaeus. Ae. (Och.) pulchritarsis. Ae. (Och.) sticticus, and Cx. (Bar.) modestus; and also the form Cx. (Cux.) pipiens pipiens biotype molestus. The frequency of occurrence of each species in different biotopes and different localities is given. The most widespread and common species in Belgorod Province include Ae. (Och.) cantans (Mg.), Ae. (Och.) cataphylla Dyar, Ae. (Fin.) geniculatus (Ol.), Ae. (Adm.) vexans (Mg.), Cx. (Cux.) pipiens, and Cx. (Cux.) pipiens pipiens biotype molestus.     

Three new Species of Tabanidae from Sichuan,China (Diptera)

This report discribes 2 new species of Haematopota, 1 new species of Tabanus and 2 males of T. omeishanensis Xu, and T. liangshanensis Xu. All the types are deposited in the Institute of Microbiology & Epidemiology, Academy of Military Medical Sciences, P.L.A., China. Haematopota erlangshanensis, sp. nov. (fig. 1; 2—2) This species is related to H. hakusanensis Togashi, but is easily     

Biological Features of Horseflies (Diptera,Tabanidae) and Landscape Zoning of Pskov Province

Entomological Review - The current composition of horsefly species in Pskov Province and their associations with different biotopes in the province and in the whole of Northwest of European Russia...     

Tabanidae (Diptera) of Saudi Arabia

Samples were collected from southern, central and eastern regions of Saudi Arabia using Malaise traps and sweep nets. Nine species of Tabanidae were identified, two for the first time from Saudi Arabia, Hybomitra peculiaris (Szilády) and Atylotus pulchellus (Loew).Therefore, the total number of Tabanidae in Saudi Arabia is 31 species. Remarks of the species recorded in this study were given. A key to the genera of Tabanidae occurring in the Arabian Peninsula is also provided. Available literature for Saudi Arabian Tabanidae is summarized and provided. It is concluded that the tabanid fauna of Saudi Arabia is more similar to that of the Palaearctic region than to the Afrotropical region.     

Host-Seeking Behavior of Selected Chrysops Species (Diptera: Tabanidae) Harboring Trypanosomatidae (Kinetoplastida)

The host-seeking behavior of hematophagous arthropods can be altered by symbiotes, thereby biasing sampling techniques and inaccurately reflecting symbiote or vector prevalence. Knowledge of any altered vector behavior is essential in vector control and monitoring. Species of Chrysops are vectors of human and animal pathogens. Six species of Chrysops were collected at two locations in South Carolina to determine if diurnal host-seeking behavior was influenced by trypanosomatid infection. Fifty-five percent of the host-seeking Chrysops were infected with trypanosomatid parasites. Prevalence of infection in host-seeking Chrysops were statistically indistinguishable during both the morning and evening at both sites. The results indicate that the prevalence of parasites among wild host-seeking Chrysops might not be influenced by infection status.     

Investigation of the sensory organs on antennae of the horseflies Hybomitra bimaculata and Tabanus bovinus (Diptera: Tabanidae) by scanning electron microscope

Sensory organs on the antennae of the horseflies Hybomitra bimaculata Macq. and Tabanus bovinus Loew are represented by the same morphological types of sensilla. Never differences in the topographical distribution of the sensilla on antennae have been also found, which can be explained by the similarity of ecological and behavioural adaptations of these insects. First and second antennal segments are found to be supplied with tactile hairs and proprioceptors. Other antennal segments bear sensory organs of several morphological types. Short thin olfactory hairs are most numerous among them. They are present on all segments of the antennal flagellum and belong to two morphological types different by the hair length. In the upper parts of the antennal segments from third to seventh several sensilla trichoidea are present, which probably serve as tactile and taste receptors.     

Systematics and distribution of horse flies (Diptera: Tabanidae) of Jordan.

The horse fly fauna of Jordan consists of 24 species belonging to seven genera. The present study adds two new records; Tabanus unifasciatus and Tabanus lunatus. Keys and illustrations for the horse flies of Jordan are presented based on examined materials. Distribution and geographic ranges for each species is also given.     

The Horsefly Fauna (Diptera,Tabanidae) of Yakutia

The literature on the fauna of the family Tabanidae (Diptera) of Yakutia is analyzed. The distribution of 37 species of horseflies over 7 natural regions of Yakutia is considered. Seven taxa of horseflies previously known by erroneous records are excluded from the fauna of Yakutia.

     

Bloodsucking dipterans (Diptera: Ceratopogonidae,Culicidae, Simuliidae,Tabanidae) of the Kurgala Peninsula,Leningrad Province

The fauna of bloodsucking dipterans of the Kurgala Peninsula comprises 73 species, 34 of which belong to mosquitoes (Culicidae), 18 to blackflies (Simuliidae), 5 to biting midges (Ceratopogonidae, genus Culicoides), and 16 species to horseflies (Tabanidae). Nine species of the bloodsucking dipterans found on the Kurgala Peninsula are new to Leningrad Province, 6 of them being also recorded for the first time for the neighboring territories of Estonia and southern Finland.     

Preliminary list of horse flies (Diptera, Tabanidae) of Serbia

Thirty six species of horse flies (Tabanidae) were previously known from Serbia (Europe). The present faunistic study of horse flies (Tabanidae) has resulted in the recording of the 4 new species Atylotus fulvus (Meigen, 1804); Tabanus miki Brauer in Brauer and Bergenstamm, 1880; Tabanus unifasciatus Loew, 1858; and Heptatoma pellucens (Fabricius, 1776), in the fauna of Serbia. The genus Heptatoma Meigen, 1803 is cited for the first time in the fauna of Serbia. 40 species are currently known from Serbia, belonging to nine genera. The fauna can be considered relatively poorly studied. Most of the species belong to the Boreal-Eurasian type of fauna 23, followed by the South European group with 8 species, the Mediterranean group with 6 species, European group with 2 species and Central European group with 1 species.     

Alighting sites of female Tabanidae (Diptera) at Rekomitjie, Zimbabwe

Twenty-one species of Tabanidae from four genera were recorded. Where samples were large enough, the preferred alighting sites were determined for the tabanids, and differences in such sites were found for species in three genera. The lower legs of the bait ox were the preferred alighting site for 61.8% of the flies. In the season of peak fly numbers, the bait ox was under stress from the tabanids.     

The orientation behaviour of horse flies and deer flies (Tabanidae, Diptera)

The Manitoba Fly Trap is illustrated and described and its uses in behaviour studies, surveys, insect control and perhaps population studies are enumerated. Its advantages over other traps for diurnal biting flies are discussed.

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Zusammenfassung Die Manitoba-Fliegenfalle wird abgebildet und beschrieben. Ihre Verwendungsmöglichkeiten bei der Verhaltensforschung, Sammlung und Bekämpfung von Insekten und vielleicht bei Massenwechselstudien werden aufgezählt und ihre Vorteile vor anderen Fallen für den Fang diurnaler Stechfliegen diskutiert.

     

Seasonality and landscape use by Tabanidae species (Diptera) in the Central Amazon, Brazil

Adults of Tabanidae may become serious pests wherever they occur due to their attack to humans and others animals. Tabanids were captured near ground, water surface and at 25 m high on primary forests and forest gaps of anthropogenic origin, to understand their abundance, seasonality, diversity and similarity on such environments. Collections were carried out in the Base II of the War Instruction Center in the Jungle (CIGS) located at 54 km from Manaus municipality, Amazonas state. Two Malaise flight interception traps and four attraction traps (two suspended at 25 m high and two above the water surface of igarapé) were installed in forest gap and primary forest, areas for 10 consecutive days, during 15 months. A total of 2,643 specimens of 66 species were captured. Diachlorini (35 species /11 genera) was the most abundant tribe, followed by Tabanini (19 species /three genera), Chrysopsini (seven species /one genus) and Scionini (five species /two genera). Seventeen species were captured only in the primary forest, 11 in the anthropic clearing, and 38 species were common to both environments. The most abundant species were Phorcotabanus cinereus (Wiedemann), Tabanus occidentalis L, Chrysops laetus Fabricius and Tabanus angustifrons Macquart. The greatest richness was found in drier months (September/October) in both areas. Theforest gap showed higher abundance of specimens (1,827) than the primary forest (816). Traps suspended above the water surface were the most efficient (1,723 specimens) probably due to the dispersion of horseflies over small streams.     

Species diversity and abundance of Tabanus spp. (Diptera: Tabanidae) in different habitats of Thailand

Tabanus spp. or horse flies (Diptera: Tabanidae) are haematophagous flies of medical and veterinary importance. They are known to cause trypanosomosis or surra in domestic and wild animals in Thailand. This study conducted an entomological survey of horse flies from different sites in Thailand. Horse flies were collected from three different habitats: primary forests, secondary forests and villages using Nzi traps between April 2012 and December 2016. A total of 1835 female horse flies were collected and 45 species were identified. The five most abundant species were T. striatus (25.45%), followed by T. megalops (21.36%), T. rubidus (14.82%), T. tamthaiorum (7.90%) and T. oxybeles (6.38%). The highest proportion of horse flies was collected in villages (39.13%), followed by primary forests (34%) and secondary forests (26.87%). The species diversity of horse flies in primary forests was higher than in other habitats. The results of this study may be used for a horse fly control program.     

Blackflies (Diptera,Simuliidae) in eastern Trans-Baikal: Taxonomic composition and physiographic distribution

The blackfly fauna and biodiversity of some physiographic regions in eastern Trans-Baikal have been described. The structural characteristics of blackfly communities in the highlands and lowlands in the southern and northern territories of the region have been reported. A regional list of forty seven species in five genera of the Simuliidae family has been produced for the first time. The species distribution in three major river basins, Upper Amur, Lena, and Yenisei, are examined. A comparative cluster analysis of the similarities in species composition between the blackflies in the observed area and the adjacent regions is carried out. The blackfly species composition of the Upper Amur basin is more similar to the population of the Selenga River basin and significantly differs from the fauna in the middle and lower reaches of the Amur River; only three blackfly species typical for the Far East fauna have been indicated.