Chloroform can help. For example, such protocol:

https://www.pgia.ac.lk/files/Annual_congress/journel/v26/Journal-No%202/Papers/2%20-62.%20Mr.%20U.G.A.I.%20Sirisena%20OK_new.pdf

Immerse in Chloroform for 1 hr to dissolve the surface wax, finishing with a final rinse in 100% ethanol (from a newly opened bottle, to ensure no water was present).

Good luck!

Thanks Denis, for kind information. -Mubasher

Dear Mubasher

Any organic solvents ,i.e., acetone, would do the job of cleaning the wax ,covering layer of hemipterans. Then you can dry it by normal air

prior SEM examinations.

Dear Khaled J. Habib,

Thanks for kind suggestion.