why do horse flies come out in july?
by paco on Saturday, February 11th, 2012 | 2 Comments
I live in Ohio and it seems that horse flies come out in the middle of july or a little sooner. Why is that? Is it their “hatching” time or mating time? And what is their purpose in life besides annoying people? I know they bite but do they eat blood? Im curious about these insects… I hate them but id like to know these answers…. Thanks for your help and time LEBE
It is their lifecycle, depending on weather they start and finish their pupal period a bit earlier or later >
” Eggs are deposited in masses usually on vegetation or other objects over water near the larval habitat. After eggs hatch in 5 to 12 days, small larvae drop down and burrow into moist, wet soil found in marshes, stream banks, and bottoms of lakes and ponds. They may drop into rapidly flowing streams or burrow into dry soil. Larvae feed on organic debris, other insects, tiny crustaceans, snails, earthworms, and aquatic or semiaquatic organisms. Larvae overwinter in muddy soils, maturing in late spring. Pupation occurs in dry soil. The larval stage is about one year or up to two to three years for some species. The pupal period may range from 6 to 12 days depending on temperature and species. Adults are strong fliers, and appear in early summer with females feeding on blood while males feed on flower nectar, honeydew, plant juices, and other liquids. The life cycle may require from two months to two or three years, depending on the species and geographical region. Some species must obtain a blood meal before the development of each batch of eggs. Adults of most species are seen for only about one month, but often there is an overlapping succession of species during the season. Humans are seriously annoyed by deer flies around woodland areas with streams.”
This and more details in >
you will surely get your answer here