Haematobia irritans, the horn fly, is a small fly (about half the size of a common housefly). It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is of the genus Haematobia which is the European genus of bloodsucking flies.

The horn fly is a small blood-feeder found in constant association with grazing cattle and in smaller numbers on drylot or indoor cattle. They are ferocious and painful biters and more than 400 per animal will affect the health and productivity of cattle.

horn fly, (Haematobia irritans), insect of the family Muscidae (order Diptera) and a serious cattle pest. Adult horn flies cluster at the base of horns and on the neck and rump of cattle and suck blood. Their attacks cause loss of weight and milk production in affected cattle.

Horn flies can be easily identified by their dark color, size (~3–6 mm long, approximately half the size of a stable fly), and bayonet-like proboscis that protrudes forward from the head. Clustering in the hundreds around the base of the horns of cattle is typical.

2013年3月20日 · The horn fly (Fig. 1) is considered one of the most important pests of pasture cattle. These flies spend most of their adult life on the body of their cattle host. Horn flies have long bayonet-type mouthparts called a proboscis, which contain rasping teeth used to tear through the skin of cattle causing blood to pool at the skin surface.

Found on the backs of cattle, horn flies are the most pervasive and costly external parasites of cattle in North America. These pests take up to 40 blood meals a day with piercing mouthparts. The stress caused by horn flies causes interrupted grazing patterns and reduced weight gains in …

Horn flies are small (3/16 inch long), dark gray flies that feed on cattle and occasionally horses. Both sexes are blood feeders, taking 20 or more blood meals each day with their stiff needle-like mouthparts. Irritations from the bites annoy animals and occasionally, the …

Common Name: Horn fly Scientific Name: Haematobia irritans (Linnaeus) Order: Diptera. Description: Adults are about half the size of houseflies (about 3/16 inch long) and are gray-black. Part of the mouthparts (proboscis or labium) are long and slender, projecting forward from the bottom of the head along with a pair of structures (palpi) which ...

2018年7月19日 · Horn flies are one of the most economically damaging external parasites in beef cattle operations in Florida. The summer of 2018 in Levy County is shaping up to be a very active year for horn flies on cattle.

The horn fly, Haematobia irritans irritans (Linnaeus), is one of the most economically important pests of cattle worldwide. It is an obligate blood-feeding ectoparasite, feeding almost exclusively on cattle.