Mucha-zhurchalka (sifrida). It is a little similar to a bee, has the large head with the big eyes, two pairs wings and a striped back …
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Mucha-zhurchalka (sifrida). It is a little similar to a bee, has the large head with the big eyes, two pairs wings and a striped back, but drawing on it absolutely another, than at bees. The fly in air hangs, as the small helicopter, and vspugnuty, it doesn’t buzz, as a bee.
For summer of a zhurchalka can give 2-4 generations some – to 9. For a laying onivybirayut the largest colonies of plant louses, chtoby to a hatching larva far not to go.
Originally the larva – is the tiny goffered worm similar to a light bloodsucker. When it grows up, exhausts contents of plant louses. From them remain only the wrinkled skin and feet. Larvae of a fly-zhurchalki eat also larvae of shchitovka, deaf adders, web, strawberry, smorodinny pochkovy pincers. There lives a liyochinka three weeks, during this time it exhausts some hundred insects. Then zabiraetsya in an escape fork where gradually turns into a doll. Time will come, and the doll leaves a fly-zhurchalka (sifrida).
Ladybugs. Cows – small bugs (seven – five – and point-to-point). They are widespread everywhere. At us in the country there live about 160 types, almost all of them, behind an exception 3 – 5-dot – useful. Cows – different in the size – from one millimeter to nearly a centimeter. Cows and their larvae eat plant louses, cherveets, shchitovka, pincers, larvae of an akatsiyevy lozhnoshchitovka.
Larvae during the development destroy to 600-800 plant louses in day, so to the late fall. The seven-dot cow postpones the small extended yellow small eggs small groups till 5-15-20, sometimes 50 pieces about colonies of plant louses. In 5-8 days from eggs vyluplyayutsya tiny colourless larvae, they eat walls of the eggs, gnaw them.
Adult larvae of a ladybug are floridly painted, very mobile, they then in places of a food pupate. Development from egg to an adult insect – about a month. 3a two generations give summer of a cow.