True Flies are distinguished from other flying insects by a single pair of wings. They include houseflies, fruit flies, hoverflies, mosquitoes, gnats, midges, craneflies, etc, but excludes butterflies, dragonflies, mayflies, caddisflies, etc. The youngs of flies are called maggots.
Mosquitoes (Family Culicidae)
Mosquitoes are well known as blood-sucking insects. However, it's the female which upholds this reputation, the male does not suck blood. There are 137 species in Singapore1,2.
NTU ©Eddy Lee
Moth Flies (Family Psychodidae)
Sand Flies belong to this family as well.
Craneflies (Family Tipulidae)
Soldierflies (Family Stratiomyidae)
Robberflies (Family Asilidae)
Long-legged Flies (Family Dolichopodidae)
Hoverflies (Family Syrphidae)
Signal Flies (Family Platystomatidae)
Fruitflies (Family Tephritidae)
Vinegar Flies (Family Drosophilidae)
Stiltflies (Family Micropezidae)
Neriid Flies (Family Neriidae)
Houseflies, Stableflies and allies (Family Muscidae)
Blowflies (Family Calliphoridae)