Rainbow Stag

The Rainbow Stag is an insect that can be found on trees. It appears in June and September from 7PM to 8AM and July to August from 5PM to 8AM. When selling it to Re-Tail, the player will earn 10,000 Bells.

Location
The Rainbow Stag is found on trees.

The Museum
The Rainbow Stag can be donated to the museum. Upon doing so, the following text is given by Blathers:

"Rainbow stags are called the most beautiful of stag beetles because of their metallic-rainbow color. Not only are their wings a pretty rainbow color, but their bellies are as well.  They are quite laid back, but they can be seen every now and then fighting to protect their territories."

Quote
Upon catching the insect, the player will say the following:

"I caught a rainbow stag! Aren't you a colorful bug!"