Another Critter Visits The Office. This One Has Wings.

Robert:

This looks to me like a moth and not a butterfly. But I'm no expert.

The word commonly used in Spanish is the same for both: mariposa.

My online Spanish-English dictionary says that technically the word for moth is polilla. But my secretary Lily had never heard that word. She said for 99% of  Mexicans, it's just the familar "mariposa."