Flies of many kinds have affected human welfare for thousands of years.
Some flies suck blood; others are scavengers. Many transmit disease organisms, some are pests of cultivated plants, some live at the expense of other insects, and others aid in the pollination of plants.
Flies of importance to urban pest managers fall into several groups:
- • The family Muscidae includes the house fly and its relatives.
- • Members of the family Sarcophagidae are flesh flies.
- • The family Calliphoridae is made up the bottle flies and blow flies.
Other families of importance are Siuliidae, black flies, Psychodidae, filter flies, or moth flies; Tabanidae, horse flies and deer flies; and Drosophilidae, vinegar flies.