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495 results for “biting midge”
Figure 3 in Two New Species Of Biting Midges From France And Algeria (Diptera: Ceratopogonidae)
Figure 3. Forcipomyia (F.) pyrenaica sp. nov., male genitalia; a – ventral aspect, b – aedeagus, c – parameres.
FIGURE 3 in Catalog of the Biting Midges of the World (Diptera: Ceratopogonidae)
FIGURE 3. Numbers of valid species in each of the World's Regions, with numbers of shared species between adjacent Regions indicated. Species shared between disjunct Regions are not shown but are noted in the text.
FIG. 2 in New records of biting midges (Diptera: Ceratopogonidae) from the United Arab Emirates, with a description of a new species
FIG. 2. Dasyhelea (D.) patiae sp. nov. A—head, B—distal flagellomeres, C—frons, D—palpus, E—wing, F—ventral view of genitalia, G—apicolateral processes of tergite 9, H—gonostylus, I—aedeagus, J—parameres.
FIG. 1 in New records of biting midges (Diptera: Ceratopogonidae) from the United Arab Emirates, with a description of a new species
FIG. 1. Ventral views of male genitalia of Forcipomyia wirthiana Szadziewski, 1983 (A, B), and Dasyhelea sandrageor- gei Dominiak, 2013 (C, D).
Data from: The influence of potential stressors on oviposition site selection and subsequent growth, survival and emergence of the non-biting midge (Chironomus tepperi)
Theory predicts that animals should prefer habitats where their fitness is maximized but some mistakenly select habitats where their fitness is compromised, that is, ecological traps. Understanding why this happens requires knowledge of the habitat selection cues animals use, the habitats they prefer and why, and the fitness costs of habitat selection decisions. We conducted experiments with a freshwater insect, the non‐biting midge Chironomus tepperi to ask: (a) whether females respond to potential oviposition cues, (b) to explore whether oviposition is adaptive in relation to metal pollution and conductivity, and (c) whether individuals raised in poor quality sites are more likely to breed in similarly poor locations. We found the following: (a) females responded to some cues, especially conductivity and conspecifics, (b) females preferred sites with higher concentrations of bioavailable metals but suffered no consequences to egg/larval survival, (c) females showed some avoidance of high conductivities, but they still laid eggs resulting in reduced egg hatching, larval survival, and adult emergence, and (d) preferences were independent of natal environment. Our results show that C. tepperi is susceptible to ecological traps, depending on life stage and the relative differences in conductivities among potential oviposition sites. Our results highlight that (a) the fitness outcomes of habitat selection need to be assessed across the life cycle and (b) the relative differences in preference/suitability of habitats need to be considered in ecological trap research. This information can help determine why habitat preferences and their fitness consequences differ among species, which is critical for determining which species are susceptible to ecological traps.
Data from: Quantification of within- and between-farm dispersal of Culicoides biting midges using an immunomarking technique
Culicoides biting midges (Diptera, Ceratopogonidae) are vectors of arboviruses that cause significant economic and welfare impact. Local-scale spread of Culicoides-borne arboviruses is largely determined by the between-farm movement of infected Culicoides. Study of the dispersal behaviour of Culicoides by capture–mark–recapture (CMR) is problematic due to the likelihood of mortality and changes in behaviour upon capture caused by the small size and fragility of these insects, evidenced by low recapture rates. To counter the problem of using CMR with Culicoides, this study utilised an ovalbumin immunomarking technique to quantify the within- and between-farm dispersal of Culicoides in southern England. Both within- and between-farm dispersal of Culicoides was observed. Of the 9058 Culicoides collected over 22 nights of trapping, 600 ovalbumin-positive Culicoides, of 12 species including those implicated as arbovirus vectors, were collected with a maximum dispersal distance of 3125 m. This study provides the first species-level data on the between-farm dispersal of potential bluetongue, Schmallenberg and African horse sickness virus vectors in northern Europe. High-resolution meteorological data determined upwind and downwind flight by Culicoides had occurred. Cumulative collection and meteorological data suggest 15·6% of flights over 1 km were upwind of the treatment area and 84·4% downwind. Synthesis and applications. The use of immunomarking eliminates the potential adverse effects on survival and behaviour of insect collection prior to marking, substantially improving the resolution and accuracy of estimates of the dispersal potential of small and delicate vector species such as Culicoides. Using this technique, quantification of the range of Culicoides dispersal with regard to meteorological conditions including wind direction will enable improved, data-driven modelling of the spread of Culicoides-borne arboviruses and will inform policy response to incursions and outbreaks.
FIGURE 27. Dasyhelea huertai n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 27. Dasyhelea huertai n. sp. Holotype male. A. head. B. antennal flagellum. C. palpus. D. wing. E. genitalia.
FIGURE 26. Dasyhelea nelidae n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 26. Dasyhelea nelidae n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonostylus. D. gonocoxal apodemes and paramere. E. aedeagus. Scale bar: 0.05 mm.
FIGURE 18. Dasyhelea thomasi n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 18. Dasyhelea thomasi n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 15. A–I. Dasyhelea waughi n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 15. A–I. Dasyhelea waughi n. sp. Holotype male, A–C, Allotype female, D–I. A, D. head. B, H. wing. C. genitalia. E. frontal sclerite. F. clypeus. G. palpus. I. subgenital plate and spermatheca.
FIGURE 11. Dasyhelea juanae n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 11. Dasyhelea juanae n. sp. Holotype male, A–D, Allotype female, E–H. A, E. head. B, F. palpus. C, G. wing. D. genitalia. H, subgenital plate and spermatheca.
FIGURE 22. Dasyhelea megatheca n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 22. Dasyhelea megatheca n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 30. Dasyhelea turnbowi n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 30. Dasyhelea turnbowi n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 14. Dasyhelea patrycjae n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 14. Dasyhelea patrycjae n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 8. Dasyhelea spatula n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 8. Dasyhelea spatula n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 10. Dasyhelea scalpela n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 10. Dasyhelea scalpela n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 4. Dasyhelea hamula n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 4. Dasyhelea hamula n. sp. Holotype male. A. genitalia. B. sternite 9. C. gonocoxal apodemes and paramere. D. aedeagus. Scale bar: 0.05 mm.
FIGURE 25. Dasyhelea nelidae n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 25. Dasyhelea nelidae n. sp. Holotype male, A–D, Allotype female, E–I. A, E. head. B, G. palpus. C, H. wing. D. genitalia. F. clypeus. I. subgenital plate and spermatheca.
FIGURE 2. Dasyhelea caribbeana Spinelli & Wirth. Male. A. genitalia. B. sternite 9. C. gonostylus. D. gonocoxal apodemes and paramere. E in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 2. Dasyhelea caribbeana Spinelli & Wirth. Male. A. genitalia. B. sternite 9. C. gonostylus. D. gonocoxal apodemes and paramere. E. aedeagus. Scale bar: 0.05 mm.
FIGURE 3. Dasyhelea hamula n in The biting and predaceous midges of Guadeloupe (Diptera: Ceratopogonidae). II. Species of the subfamily Dasyheleinae
FIGURE 3. Dasyhelea hamula n. sp. Holotype male, A–D, Allotype female, E–I. A, E. head. B, G. palpus. C, H. wing. D. genitalia. F. frontal sclerite. I. subgenital plate and spermatheca.
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