In Massachusetts, the main difference between a misdemeanor and a felony lies in the severity of the crime and the potential penalties imposed. A misdemeanor is considered a less serious offense compared to a felony.

A misdemeanor typically involves crimes that are punishable by a maximum imprisonment of up to 2.5 years, fines, probation, or a combination of these penalties. Some examples of misdemeanors in Massachusetts include:

• Simple assault
• Petty theft
• Trespassing
• Disorderly conduct

On the other hand, a felony is a more serious offense that carries harsher penalties. Felonies are typically punishable by imprisonment for more than 2.5 years, significant fines, probation, or a combination of these penalties. Some examples of felonies in Massachusetts include:

• Murder
• Rape
• Robbery
• Arson

It's important to note that the specific classification of a crime as a misdemeanor or felony in Massachusetts is defined by state law. The Massachusetts General Laws (MGL) provide a comprehensive list of offenses and their corresponding classifications.

References:

1. Massachusetts General Laws, Chapter 274: Crimes Against Public Peace, Section 1. Available at: https://malegislature.gov/Laws/GeneralLaws/PartIV/TitleI/Chapter274/Section1
2. Massachusetts General Laws, Chapter 265: Crimes Against the Person, Section 1. Available at: https://malegislature.gov/Laws/GeneralLaws/PartIV/TitleI/Chapter265/Section1