Follow these simple steps to preserve your larvae specimens.
1. Boil the specimen and let them sit in hot water for 1 – 5 minutes.
a. Boilng the samples helps preserve their protein structure.
2. Place the samples in a dram (glass) vial.
3. Cover the specimens with a 70% ethanol or isopropyl solution.
Using these techniques will enable you to preserve insect specimens for several years.