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I'm not familiar with the use of that mounting medium as described. In the past I have used the variation described by Doestschman 1944 (Trans. Amer. Micr. Soc., 63:175) for use in deep cell mounts prepared without pressure. The individual mounting of dissected portions described is just what I was looking for. I am surprised that more emphasis is not placed on individual dissection of mouth parts to facilitate identification, but such is the plight of the amateur.

Thank you for pointing me to that excellent publication.