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The term "horse-fly" refers primarily to Tabaninae that are typically larger and stouter, and that lack the banded wings deer flies have. [7] [8] Other common names include tabanids, gadflies, green-headed flies, and green flies. [7] The word "Tabanus" was first recorded by Pliny the Younger and has survived as the generic name. In general ...
The Ulidiidae (formerly Otitidae) or picture-winged flies are a large and diverse cosmopolitan family of flies (Diptera), and as in related families, most species are herbivorous or detritivorous. They are often known as picture-winged flies, along with members of other families in the superfamily Tephritoidea that have patterns of bands or ...
These relatively large and slender horseflies have clear wings and green or green with red shades eyes. The female's eyes have three bands, while in males they have just two bands. In any case the eyes are without hair. Females have scissor-like mouthparts that aim to cut the skin and then lap up the blood. Thorax has greyish longitudinal bands.
These horse flies can be encountered during the daylight hours from late May through late October. [5] The males are harmless and feed on nectar, [7] while the females feed on mammal blood (hematophagy) (hence the Latin name Haematopota pluvialis, literally meaning 'blooddrinker of the rains'), mainly cattle and horses, needing blood for developing eggs.
Mouthparts of Tabanus horse-fly: sensory palp at left, sponging labella at center, skin-piercing elements at right. Haematopota pluvialis tabanid fly showing distinct patterns on eyes and wings. Antennae consist of three relatively short segments with asymmetric shapes. Brachyceran flies are of medium to large size and compact shape.
Delphinia picta is a species of picture-winged fly in the family Ulidiidae.The specific name picta is from Latin and means "painted." [6] It is the only species in the monospecific genus Delphinia.
Tabaninae is a subfamily in the family Tabanidae commonly known as horse flies. There are more than 3000 described species in Tabaninae. There are more than 3000 described species in Tabaninae. [ 1 ] [ 2 ]
Close-up on eyes of Tabanus bromius. Tabanus bromius is one of the smaller European Tabanus, at about 13.5–15 millimetres (0.5–0.6 in) body length. [10]The mesonotum is grayish and bears on the top five indistinct longitudinal lines, while the abdomen is black, hairy and carries three rows of yellowish spots.