<prompt> Sandfly can fly upto -50 yards100 yards200 yards300 yards  <response>: Sandflies Sansflies are troublesome nocturnal pests. They are incapable of flying over long distances. They merely hop about from one place to another. Sandflies are generally confined to within 50 yards. REFERENCE: PARKS TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE, 25TH EDITION, PG NO. 835 