I can give you a few suggestions for some of your pictures ,just from the little info Iv'e found .
Hope it is some help, -
No1 I am afraid there are too many similar species of Damselflies .
No2 possibly Anatya sp.
No3 Micrathyria sp maybe M. ocellata.
No4 possibly Sympetrum gilvum or same family.
No5 Erythodiplax sp ,I can't find the exact species.
All these species occur in the Amazon region ,but I don't know if specifically
Good luck .
Hi Aullador ,what a fabulous beetle ,I think it is a Fungus Beetle -Erotylidae- (Cypherotylus species).
The golden dragonfly is probably Perithemis mooma and the other dragonfly could be Orthermis aequilibris
A useful website to look at is -odonata.Bogfoot.net