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Psychodidae, also called drain flies, sink flies, filter flies, [2] sewer flies, or sewer gnats, is a family of true flies. Some genera have short, hairy bodies and wings, giving them a "furry" moth-like appearance, hence one of their common names, moth flies . [ 2 ]
Most black flies gain nourishment by feeding on the blood of mammals, including humans, although the males feed mainly on nectar. They are usually small, black or gray, with short legs and antennae. They are a common nuisance for humans, and many U.S. states have programs to suppress the black fly population.
Clogmia albipunctata adults have broad wings covered with brownish and blackish hairs. There is a tuft of blackish hair near each wing vein fork and a tuft of white hair at the ends of most veins (i.e. each wing has a pair of black spots near the middle and several white spots along the edge).
Very little research has been done on classifying and identifying carbohydrates within insect adhesive secretions. So far, glucose , trehalose and mucopolysaccharides that contain glucose, galactose , mannose , beta- glucopyranose , and/or (N-acetyl-beta-) glucosamine have been identified as components of insect adhesives.
Phorid flies are minute or small – 0.5–6 mm (1 ⁄ 64 – 1 ⁄ 4 in) in length. When viewed from the side, a pronounced hump to the thorax is seen. Their colours range from usually black or brown to more rarely yellow, orange, pale grey, and pale white. The head is usually rounded and in some species narrowed towards the vertex. The vertex ...
Chloropidae are minute to small (1.0 to 4.0 mm), rarely medium-sized, flies (6.0 to 9.0 and 12 mm) They are either black, gray, yellow, or greenish and the mesonotum often has a pattern of three to five dark longitudinal stripes against a light-colored background. The head in profile is trapezoidal or triangular.
Adult Sciaridae are small, dark flies 1–11 mm long and usually <5 mm long. [4] They have a characteristic wing venation: there is no cross vein except for a short rs at the wing base, the anterior veins are a short R1 and a long R5, vein M has a simple fork with a long stem, and CuA1 has a fork with a short stem.
Bibionidae are medium-sized flies with a body length from 4.0 to 10.0 mm. The body is black, brown, or rusty, and thickset, with thick legs. The antennae are moniliform. The front tibiae bear large strong spurs or a circlet of spines. The tarsi are five-segmented and bear tarsal claws, pulvilli, and a well developed empodium.