Which key should I use?

 

In most cases, if the specimen has wings at least half the length of the abdomen, it is an adult, and the adult key should be used.

If the wings are lacking or the wings are small and/or pad-like, the nymphal key should be used. However, some grasshopper species lack wings in the adult stage, so these adults may be confused with nymphs.

Adults of the grasshopper species listed below may be confused for nymphs.

Aeropedellus clavatus male and female

Aeropedellus clavatus adult male

Aeropedellus clavatus adult female

Boopedon nubilum female

Aeropedellus clavatus adult male

Brachystola magna male and female

Brachystola magna adult male

Brachystola magna adult female

Campylacantha olivacea male and female

Campylacantha olivacea adult male

Campylacantha olivacea adult female

Chorthippus curtipennis female

Chorthippus curtipennis adult female

Dactylotum bicolor male and female

Dactylotum bicolor adult male

Dactylotum bicolor adult female

Hesperotettix speciosus male and female

Hesperotettix speciosus adult male

Hesperotettix speciosus adult female

Hypochlora alba male and female

Hypochlora alba adult male

Hypochlora alba adult female

Melanoplus dawsoni male and female

Melanoplus dawsoni adult male

Melanoplus dawsoni adult female

Melanoplus lakinus male and female

Melanoplus lakinus adult male

Melanoplus lakinus adult female

Oedaleonotus enigma male and female

Oedaleonotus enigma adult male

Oedaleonotus enigma adult female

Paropomala wyomingensis male and female

Paropomala wyomingensisa adult male

Paropomala wyomingensis adult female

Phoetaliotes nebrascensis male and female

Phoetaliotes nebrascensis adult male

Phoetaliotes nebrascensis adult female

Pseudopomala brachyptera male and female

Pseudopomala brachyptera adult male