* larval remains = remains of a dead fly larva was inside the leaf mine
and that section of mine was preserved for analysis, empty mine = no
signs of larval remains inside the leaf mine, unknown = leaf mine not
examined under a microscope and thus unknown if it was empty or
contained larval remains.
** In some cases, multiple specimens (either multiple leaf mines or
multiple larval remains) were pooled into a single sample to ensure
sufficient DNA to make an identification.
*** At least 1 out of 3 replicate qPCR tests was positive for L.
sativae.