List of colorful and strange looking insects:
stick insect
Brahmin Moth
Pink Katydid
Katydid
Two-spined Spider
Tree Hoppers
Lanternfly
Panorpa
fan horned beetle
scarlet lily beetle
cuckoo wasp
Potter wasp
wasp head closeup
Peacock Mantis
Jumping Spider
Red Palm Weevil
Tail less whipscorpion
Monkey grasshopper
Yellow green colored African Comet Moth
Cicada
Cicada parasite beetle
Iceryine Scale
Flatid Bug Leafhopper Larva
Giant prickly stick insect
European mantis
Minstrel bug
robber fly
caterpillar of butterfly
video
More resources:
Insect Image Gallery at PennState
Insect Images at University of Nebraska–Lincoln Department of Entomology