BEHAVIOR:

 

EMERGENCE:

  • As they mature, black fly pupae become inflated with air
  • Upon emergence, the pupal skin pops open and the adult fly floats to the water surface inside a bubble of air
  • http://www.niles-hs.k12.il.us/North/Science/bragre/diptera.html

OVIPOSITION:

  • none avaliable

ACTIVITY:

  • The adult has been observed active in the pale sunlight
  • (Oldroyd, 1965)

LOCOMOTION:

  • None Avaliable