To many, Labor Day marks the end of the summer season, even as Memorial Day marks its beginning. Many see Labor Day as their last chance to get out and take a vacation before summer is gone, and many workers get a two-week annual vacation period with Labor Day Weekend right in the middle of the two weeks off.
The lifespan of a hover fly is similar to other flies. They can  live anywhere between 15 to 30 days and it all depends on the  climate and temperature they are in.he common housefly (suborder Cyclorrhapha) generally can have a life cycle of 15 to 30 days. Four distinct stages characterize its life cycle: egg, larva, pupa, and adult.
The adult fly emerges from the pupa in the ground after about 30 days. Over a period of 12-14 days it matures, mates and, if it is a female, deposits its first larva.Thus 50 days elapse between the emergence of one female fly and the subsequent emergence of the first of its progeny.or a more detailed description of the life cycle and general biology of tsetse flies, see Stephen Leak's excellent book (Leak, 1999). References. Leak, S.G.A. (1998) Tsetse biology and ecology: their role in the epidemiology and control of trypanosomosis.