EntdeckenInsekten

Black Horse Fly

tabanus atratus

The black horse fly (Tabanus atratus) is a large, striking insect native to North America, known for its formidable size and deep black coloration. While male black horse flies feed exclusively on plant nectar and pollen, females are infamous for their painful bites, which they use to obtain blood meals necessary for egg development. These powerful fliers are common sights around livestock, marshes, and damp pastures during the warmth of summer. Despite their intimidating presence and reputation as pests, they play a vital ecological role as pollinators and as a food source for various birds, frogs, and predatory insects.

Lebensraum: Typically found near wet environments such as marshes, swamps, and ponds, as well as open pastures and woodlands where livestock are present.

Aussehen

The black horse fly is easily identified by its large size, typically measuring between 2.0 to 2.8 centimeters in length, and its entirely black or very dark brown body. Its large, broad wings are uniformly dark brown to black, and its massive compound eyes cover a significant portion of its head. In males, these eyes touch at the top of the head, whereas in females they are separated by a small gap. The stout body is covered in fine, dark hairs, giving it a matte or slightly velvety appearance.

ReichAnimaliaStammArthropodaKlasseInsectaOrdnungDipteraFamilieTabanidaeGattungTabanus
Black Horse Fly
Black Horse Fly

Kategorie

Insekten

Seltenheit

Common

Gefahr

1/5 · Sehr gering

Snaps

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Interessante Fakten

Black horse flies are strongly attracted to dark, moving shapes and carbon dioxide, which is how they locate large mammalian hosts like horses and cattle.

Only female black horse flies bite; males lack the mouthparts required to pierce skin and feed solely on nectar and pollen.

Their larvae are highly predatory and possess sharp fangs with which they inject venom to paralyze small aquatic organisms and earthworms.

They are among the fastest flying insects, capable of reaching speeds that allow them to easily chase down running animals.

Besondere Fähigkeiten

Fähigkeit

Razor-Sharp Mouthparts

Females possess scissor-like mandibles that slice open the skin of hosts to lap up blood, rather than piercing like mosquitoes.

Fähigkeit

High-Speed Flight

They are exceptionally fast and agile fliers, capable of keeping pace with running mammals to secure a blood meal.

Fähigkeit

Polarized Light Navigation

They use specialized vision to detect polarized light, helping them locate water bodies for egg-laying and navigate their environment.

Maße und Details

Gelegegröße
100+

Ernährung und Fütterung

Adult males feed strictly on plant juices and nectar, whereas females require mammalian blood meals to develop their eggs; larvae are voracious predators of aquatic invertebrates.

Hauptnahrung

  • Mammalian blood
  • Flower nectar
  • Plant sap
  • Aquatic insects
  • Earthworms

Nahrungssuche

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Ökologische Zusammenhänge

hunts

Domestic Cattle

Bos taurus

Female flies bite and feed on the blood of livestock for reproductive nourishment.

eaten by

Common Green Darner

Anax junius

Adult horse flies are captured on the wing and consumed by large dragonflies.

eaten by

Killdeer

Charadrius vociferus

The larvae and occasionally adults of the fly are eaten by shorebirds foraging in muddy habitats.

Merkmale

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Sicherheit

Gefahr

1/5 · Sehr gering

Noch keine besonderen Sicherheitshinweise.

Häufig gestellte Fragen

Wie identifiziert man Black Horse Fly?

Der einfachste Weg, Black Horse Fly zu bestimmen, ist die Verwendung der Naturführer-App Snappit.

Was frisst Black Horse Fly?

Adult males feed strictly on plant juices and nectar, whereas females require mammalian blood meals to develop their eggs; larvae are voracious predators of aquatic invertebrates.

Wo findet man Black Horse Fly normalerweise?

Typically found near wet environments such as marshes, swamps, and ponds, as well as open pastures and woodlands where livestock are present.

Wie jagt Black Horse Fly?

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Was ist der/die/das gelegegröße von Black Horse Fly?

100+

Snap-Karte

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Wo zu sehen

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