In general, dragonflies have eyes that can see in all directions and equipped with compound eyes, three oseli and has a short hair that is almost the same as the antenna and has the mouth mandibulata (Gullan). In addition, the dragonfly has a small and compact piston (and two other small piston segments) Dragonflies also have short limbs which is one form of adaptation in order to perceive, catch and also hold prey. The limbs consist of a very strong trochanter and femur, a slender tibia without spurs and three sections of tarsi. size of adult dragonfly wing ranges from 2 -15 cm even also up to 17 cm,
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From @farel