This turned out to be an incredibly interesting (and educational) diversion! It seems these amino acids aren't typically incorporated, but rather appear to ser

This turned out to be an incredibly interesting (and educational) diversion! It seems these amino acids aren't typically incorporated, but rather appear to serve as defense (https://www.ncbi.nlm.nih.gov/pubmed/21529857 https://www.ncbi.nlm.nih.gov/pubmed/21529857) and signaling molecules (https://www.ncbi.nlm.nih.gov/pubmed/28218981 https://www.ncbi.nlm.nih.gov/pubmed/28218981). Apparently humans do that sometimes as well (https://www.ncbi.nlm.nih.gov/pubmed/18828673 https://www.ncbi.nlm.nih.gov/pubmed/18828673). Sometimes the insects even end up using the toxic compound (in the linked example the non-protein amino acid L-DOPA) for their own purposes (https://www.ncbi.nlm.nih.gov/pubmed/27006098 https://www.ncbi.nlm.nih.gov/pubmed/27006098), which I find quite amusing. More than just being eaten, apparently L-DOPA is released into the environment at an impressive rate in some cases (https://www.ncbi.nlm.nih.gov/pubmed/24598311 https://www.ncbi.nlm.nih.gov/pubmed/24598311).