I've heard that foot care is very essential in areas where there are mosquitoes. They apparently are attracted to funky smelling feet, and this seems to be true. My crewmate in Canada had a right set of humdingers, and they would swarm him and pretty much leave me alone!! I suppose that was a bonus to sharing a crew shelter with someone who had death feet!!
Get an Ortlieb canoe sack for keeping your dry kit in, they come in various sizes and are the best. I've used a few other brands and none of them came up to the standard set by ortlieb. Use unscented soap, scented stuff seems to attract the insects, don't forget to shake your kit out aswell, and store your boots with one top inside the other top, if you get my meaning. This may stop the big nasties getting in in the first place.
A pair of lightweight trousers or the old tropical trousers as issued to british troops will be the best cheap trousers to wear, no doubt there is a more expensive civvy version! Floppy hat will be good for keeping your head cool and keeping your head mozzie net (also good for catching small fish, shrimp and crayfish in streams!) away from your face. Wear woolen socks, they won't stink and rot as quickly as sport socks made of cotton. I would wear flip flops around camp of an evening to allow my feet to breathe a bit, although that would depend on how wet the jungle is. Not much point if you are practically swimming!
Have lots of fun, take some pics and share them when you get back!
Spamel