Other Types of Flies
Although over eighteen thousand fly species can be found throughout North America, scientists classify them into five groups: : biting flies, filth flies, small flies, over wintering flies, and gnats Within each of these groups, numerous species exist.
Depending on species, either females or both sexes of biting flies feed on blood. Biting fly mouth parts also differ based on feeding strategies. A mosquito uses its needle-like proboscis to suck blood, while larger horse flies use pincer-like mandibles to tear flesh. Biting flies are most active in warm, humid daytime hours and lay their eggs in decaying organic material such as mulch or even in or near bodies of water.
While filth flies do not feed on blood, they are extremely unsanitary, feeding and laying their eggs in trash, feces or decaying material. Filth flies are known carriers of over 100 diseases, including cholera, malaria and anthrax. Common houseflies drain flies; sewage flies and phorid flies are common filth flies, although many other species of filth flies exist. Sanitation is necessary in combating filth fly populations.
Fruit flies are an example of the smallest type of fly. They favor fruits and other sugary, organic substances as feeding and breeding sites. Consumption of infested fruits and vegetables can lead to severe intestinal discomfort.


