Unlike smaller House Flies, Horse Flies are not fuzzy or hairy. The multiple abdominal colour forms of the female Hybomitra bimaculata can make identification tricky. Eye configuration can also help determine gender. The female Hybomitra ciuraei has distinct areas of black hairs on the orange ground colour, whilst female Hybomitra distinguenda has only orange hairs. The mesonotum of Tabanus bromius is gray with five indistinct longitudinal lines. Typical characteristics: stoutly built flies with large squamae (scales above the halteres, also called calypters ); feet with 3 pads (as opposed to 2); 3rd antennal segment elongated, clearly made up of several fused parts; The greatly enlarged base of antennal flagellum is characteristic of this subfamily. The antennae extend forwards with the 3rd antennal segment annulated but without a style. The hind tibiae are entirely reddish-yellow. Read Our Pest Control Reviews. Adults can be up to 25 mm long. Black-tailed Bee Fly. Characteristics: Stout flies with large, iridescent eyes and clear or solid colored wings. We have made identifications from our photos of living and preserved specimens using Stubbs & Drake (2014). New rules applying from January 1, 2016. Learn More. Cranefly. The male also has a pair of diverging lobes on the second tergite, although not as strongly divergent as in the females. These are large flies which can give a painful bite. ... Black Horse Fly. There are approximately 3000 species of horseflies around the world, of which about 350 are found in North America alone. Flower-seeking adults may be found peripheral to these sites. Female horse flies lay batches of eggs on areas over wetlands or water sources. Fly Identification - House flies, mosquitoes, crane flies, & gnats - Summary: The flies (Diptera) are an extremely large and diverse group of insects including mosquitoes, gnats, crane flies, house flies, and even horse and deer flies. Identification: Chrysops relictus is a medium-sized deer fly with a body length of 8-10.5 mm. Appearance Length: Horse flies varying in length from about ½ to 1 ¼ inches long Color: They are black or gray in color. More recently Atylotus rusticus has been reported in the Central Weald, in Long Herdon and Grange Meadows Reserve, Buckinghamshire, at Otmoor in Oxfordshire and in East Kent. The clear area near the anal margin of wing is suffused with black, creating a clear spot. At least the distal half, and all of the middle tibiae are usually black (see first picture above), although the first tarsal segment is reddish brown. Find out all about horse fly bites, black fly bites, deer fly bites, and more. The pain, redness, and weal help to identify horsefly bites. These characteristics should distinguish Tabanus sudeticus from the very similar Tabanus bovinus, which has the abdomen distinctly reddish-orange at the sides and median triangles usually longer and reaching the foregoing tergite. Common Sawfly. Horse flies (Figure 4) and deer flies (Figure 5) are closely related insects with similar life cycles. A more reliable way to separate females of these two Hybomitra species is to examine the colour of the hairs on the lateral thirds of the second tergite. The male (not pictured here) is similar to the male of Chrysops relictus, but has no grey-brown shading near the hind margin of the wing. Haematopota pluvialis has pale brown wings. They emerge as adults in anywhere between one and three years. Identification: Chrysops caecutiens is a medium-sized deerfly with a body length of 9-10 mm. There is an extensive clear patch near the anal margin of the wing. 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