Dylan
Pantala flavescens seems to have a variety of English names - Wandering Glider, Typhoon Dragonfly, Orange Glider and, as you note, Globe Skimmer.
Many thanks for the link to Charles Anderson's talk on the migration of the Globe Skimmer from India to Africa.
The paper he wrote on the same topic can be found at
http://www.mrc.gov.mv/index.php/publications/
It's interesting the link he makes between the migration of birds such as Amur Falcon at the same time and on the same flight path as the dragonflies. As he says in his paper, Amur Falcons use the Globe Skimmers as a source of "in-flight refuelling".
Fascinating stuff!
dave