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The housefly is a typical sponging insect. The labellum's surface is covered by minute food channels, formed by the interlocking elongate hypopharynx and epipharynx, forming a proboscis used to channel liquid food to the oesophagus. The food channel draws liquid and liquified food to the oesophagus by capillary action. The housefly is able to ...
The housefly (Musca domestica) is a fly of the suborder Cyclorrhapha.It possibly originated in the Middle East, and spread around the world as a commensal of humans.Adults are gray to black, with four dark, longitudinal lines on the thorax, slightly hairy bodies, and a single pair of membranous wings.
It includes Musca domestica (the housefly), as well as Musca autumnalis (the face fly or autumn housefly). It is part of the family Muscidae. Selected species
In flies such as the mosquitoes, that have long antennae, the labella are two separate organs, attached to the proboscis only at their bases, but in the flies with short antennae, such as the house fly, they are more or less fused to form a single structure. Flies with fused labella have food channels in the surface of the labella.
The housefly, Musca domestica, is the best known and most important species. Some, from the genera Hydrotaea and Muscina, are involved in forensic case studies.
Its body is 10–14 mm (0.39–0.55 in) in length – slightly larger than a house fly – and has brilliant, metallic, blue-green or golden coloration with black markings. It has short, sparse, black bristles and three cross-grooves on the thorax.
The alula is well developed in the house fly. The outer squama (c) arises from the wing base behind the third axillary sclerite (3Ax) and represents the jugal lobe of other insects (A, D); the larger inner squama (d) arises from the posterior scutellar margin of the tergum of the wing-bearing segment and forms a protective, hood-like canopy ...
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