To convert the scientific notation \(2.67 \times 10^{-3}\) meters into decimal notation, you move the decimal point 3 places to the left (since the exponent is -3).
Starting with \(2.67\):
- Move the decimal point one place to the left: \(0.267\)
- Move it a second place to the left: \(0.0267\)
- Move it a third place to the left: \(0.00267\)
Therefore, the length of the wasp's stinger in decimal notation is 0.00267 meters.