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The mosquito life cycle consists of four stages: egg, larva, pupa, and adult. Eggs are laid on the water surface; they hatch into motile larvae that feed on aquatic algae and organic material. These larvae are important food sources for many freshwater animals, such as dragonfly nymphs, many fish, and some birds.
Mosquito eggs can lie dormant for years. The insect survives below freezing temperatures because of two phases. Water is replaced by glycerol, acting as an antifreeze protecting the insect from bursting when frozen, and a supercooling process that lowers the body temperature below freezing, while the body fluids do not solidify. [6]
Aedes koreicus is known to be a container breeding mosquito. [3] They lay eggs in all types of artificial containers and natural holes that are found in plants and rocks in urban, peri urban, and natural environments. [3] Aedes koreicus lay approximately 100 eggs at a time, and can lay eggs up to three times per life cycle.
An adult crane fly, resembling an oversized male mosquito, typically has a slender body and long, stilt-like legs that are deciduous, easily coming off the body. [12] [2] Like other insects, their wings are marked with wing interference patterns which vary among species, thus are useful for species identification. [13]
Ovitrap. An ovitrap is a device which consists of a dark container topped with a mesh and containing water, and a substrate where mosquitoes can lay their eggs. The eggs then fall through the mesh into the water, where the larvae hatch and develop into pupas.
Flies undergo complete metamorphosis; the eggs are often laid on the larval food-source and the larvae, which lack true limbs, develop in a protected environment, often inside their food source. Other species are ovoviviparous , opportunistically depositing hatched or hatching larvae instead of eggs on carrion , dung, decaying material, or open ...
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Female insects make eggs, receive and store sperm, manipulate sperm from different males, and lay eggs. Accessory glands produce substances to maintain sperm and to protect the eggs. They can produce glue and protective substances for coating eggs, or tough coverings for a batch of eggs called oothecae. [57]