Do not submit plant parts in an advanced state of decay. Wrap the specimens in dry paper towels, or newspaper and enclose in wax paper, aluminum foil or plastic with holes punched in it. Include leaf and stem specimens if possible. Pack securely with additional newspaper to prevent movement in a sturdy, crush-proof container. Collect ten or more insects if possible in each sample.
Single specimens are often difficult to identify and possibility of damage in the mail is great.
The plant material on which the insects were found can be useful in identification, in fact, absolutely necessary with some insects. Collect a fresh sample and follow instructions for mailing plant samples. Live insects should be put in a sealed container such as a vial, plastic container or plastic jar. The interior of the container should be dry to help prevent the insects from decomposing. Small holes in the container lid will also help.