Morphology of a fly (lateral view): flying insect of which there are numerous species, most of them noxious.
Wing: organ of aerial locomotion of a fly.
Thoracic stigma: respiratory orifice of a fly.
Balancer: stabilizing organ of a fly that takes the place of a rear wing.
Abdominal segment: part of the abdomen.
Femur: thigh bone.
Tibia: bone of the foreleg.
Hind leg: rear limb.
Tarsus: each of the bones that form the part of the rear leg below the tibia.
Middle leg: middle limb.
Mesothorax: central part of the thorax.
Mouth parts: parts related to the mouth.
Fore leg: front limb.
Antenna: organ of touch of a fly.
Arista: sensory organ composed of bristling hairs.
Compound eye: complex organ of sight of a fly.
Head: foremost part of a fly.
Prothorax: foremost part of the thorax.
Metathorax: rear part of the thorax.

Photo :

EN : Flies
FR : Mouches
ES : Moscas


The flies, in particular the mosquitoes, are of great importance as disease transmitters, acting as vectors for malaria, dengue, West Nile virus, yellow fever and other infectious diseases.

Animation : Mosca

Thanks to YouTube for allowing us to watch this video.