Pantala flavescens | |
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Kerala, India | |
Grand Cayman, Cayman Islands | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Odonata |
Infraorder: | Anisoptera |
Family: | Libellulidae |
Genus: | Pantala |
Species: | P. flavescens |
Binomial name | |
Pantala flavescens (Fabricius, 1798) |
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Distribution of Pantala flavescens | |
Synonyms | |
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Pantala flavescens, the globe skimmer, globe wanderer or wandering glider, is a wide-ranging dragonfly of the family Libellulidae. This species and Pantala hymenaea, the "spot-winged glider", are the only members of the genus Pantala from the subfamily Pantalinae. It was first described by Fabricius in 1798. It is considered to be the most widespread dragonfly on the planet with good population on every continent except Antarctica although rare in Europe.
The dragonfly is up to 4.5 cm long, reaching wing spans between 7.2 cm and 8.4 cm. The front side of the head is yellowish to reddish. The thorax is usually yellow to golden colored with a dark line and hairy. There were also specimens with a brown or olive thorax. The abdomen has a similar color as the thorax.
The wings are clear and very broad at the base. There, too, there are some specimens with olive, brown and yellow wings. On Easter Island there are wandering gliders with black wings.
The pterostigma turns yellowish. The transparent wings may turn a yellowish shade towards the tip. The chestnut-red eyes take up most of the head, as is usual in the large dragonflies (Anisoptera). The above colors explain the many scientific descriptions of this species under different names.
Females show some differences compared with males. The general rule is, the males have reddish yellow abdomen marked with black whereas the females lack the reddish wash in abdomen. The males have golden yellow patch on base of hindwings and narrow apical brown spot at the hind border of wings.The females lack apical brown patches in wings.
In mainland males, the length of the femur, the longest leg section, varies; they also have longer front and shorter hind wings than the females. The island representatives, however, have the front and hind wings longer than the female, and the femur is the same for both sexes. There are other differences between mainland and island specimens, particularly in terms of coloring. Island representatives are generally darker.