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A dragonfly is a flying insect belonging to the infraorder ... which make up the other odonatan ... and they have been known to aggregate close to polished ...
The adults of Onychogomphus forcipatus grow up to 6 centimetres (2.4 in) long, with a wingspan of 5.5–7.5 centimetres (2.2–3.0 in). The eyes of these medium-sized dragonflies are widely separated and grey-to-green.
The adults of Onychogomphus uncatus grow up to 65 millimetres (2.6 in) long. The eyes are widely separated and bright-blue or gray-blue, never green. The front black line on the side of the thorax does not touch the midline. The yellow collar at the front of the thorax is interrupted by a black bar.
More mass at the end of the wing may also reduce the energy needed to move the wings up and down. The right combination of wing stiffness and wing mass could reduce the energy consumption of flying. There are five main vein stems on dragonfly and damselfly wings, and wing veins are fused at their bases. The main veins are:
An up close view of a female Sympetrum corruptum, showing where the wings connect to the Synthorax. The variegated meadowhawk (Sympetrum corruptum) is a dragonfly of the family Libellulidae, native to North America.
Mating takes place while the dragonflies are perched on vegetation close to the water. [2] Within one minute of mating, the female starts to lay her eggs, the male hovering nearby to guard her. [4] She flies low over the pond, dipping her abdomen into the water and depositing her eggs at intervals. [2] Some females mate several times during a ...
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The green darner is a large dragonfly; males grow to 76 mm (3.0 in) in length with a wingspan up to 80 mm (3.1 in). [9] [10] Females oviposit in aquatic vegetation, eggs laid beneath the water surface. Nymphs (naiads) are aquatic carnivores, feeding on insects, tadpoles, and small fish.