Blackfly

Characteristics 

• Insect: Three part body (head/thorax /abdomen) and 6 legs
• Hunched and densely hairy thorax
• short, "cigar-shaped" antennae
• Short mouthparts, only penetrate the upper layers of the skin ("pool feeder") 
• Wings
• Complete metamorphosis (holometabole development)
• Strongly developed radial veins
• Dusk and night activity

•Medical significance: 

• Onchocerciasis / "River blindness" (Oncocerca volvulus)

•Eggs, larvae, pupae mainly in the water, but they require atmospheric air for breathing

•Development connected to water