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Palpopleura sexmaculata, [2] commonly known as the Asian widow or blue-tailed yellow skimmer, [3] [4] is a species of dragonfly in the family Libellulidae. It is widespread in several countries in South , East and Southeast Asia , but is no longer believed to occur in Sri Lanka .
Widow skimmers have large bulky bodies, with large heads. Adults have a steely blue body area but juveniles are yellow with brown stripes. [2] Eyes are also large and close together meeting in the middle of the head. [3] They have three pairs of legs. Legs are black in color. They have two pairs of wings: forewings and hindwings.
Pantala flavescens, [3] the globe skimmer, globe wanderer or wandering glider, [1] is a wide-ranging dragonfly of the family Libellulidae. [1] This species and Pantala hymenaea , the "spot-winged glider", are the only members of the genus Pantala .
Training in use of a liferaft – the rule will apply when exposed at sea. In survival, the rule of threes involves the priorities in order to survive. [1] [2] [3] The rule, depending on the place where one lives, may allow people to effectively prepare for emergencies [4] and determine decision-making in case of injury or danger posed by the environment.
Male flame skimmers are known for their entirely red or dark orange body, this includes eyes, legs, and even wing veins. Females are usually a medium or darker brown with some thin, yellow markings. This particular type of skimmer varies in size but is generally measured somewhere between 2 and 3 inches (5.1 and 7.6 cm) long.
The black skimmer has an additional adaptation and is the only species of bird known to have slit-shaped pupils. [ 4 ] the forehead, ends of the secondaries, tail feathers and under parts are white, the rest of the plumage is black and the basal half of the bill is crimson. [ 5 ]
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Females do, however, have a short abdomen that makes the wings appear longer in comparison. [2] The blue dasher grows up to 25–43 millimetres (0.98–1.69 in) long. The males are easy to recognize with their vibrant blue color, yellow-striped thorax, and metallic green eyes.