(Spiriverpa lunulata)
The Fly sands ( Spiriverpa lunulata ) is an insect Diptera of the family therevidae.The adult measures 10 to 11 mm and is pale gray in color.They can be seen from April to September on the sandy shores.Their larvae live in the sand and their complete development can take up to 5 years.When she reaches the nymph stage,she wraps herself to form a U-.