lo xy c ory n us , ▁Bal an op hor ob ius , ▁O xy c ory n us ▁have ▁been ▁recorded ▁from ▁Bal an op hor aceae . ▁Specific ▁be et le - plant ▁association ▁are ▁A . ▁bru chi ▁with ▁Om bro ph yt um , ▁and ▁O . ▁n ig ri pes ▁and ▁O . ▁arm atus ▁with ▁L oph oph yt um . ▁B . ▁game zi ▁was ▁apparently ▁collected ▁from ▁Hel osis ▁c ay enn ensis . ▁ ▁H yd nor ob ius ▁lar va e ▁are ▁recorded ▁from ▁flowers ▁and ▁f ruits ▁of ▁Pro s op anche ▁( H yd nor aceae ). ▁P . ▁amer icana ▁is ▁host ▁to ▁H . ▁hyd n ora e ▁and ▁H . ▁h eller i ; ▁H . ▁par v ulus ▁is ▁found ▁on ▁P . ▁bon ac inae . ▁ ▁Bal an op hor aceae ▁and ▁H yd nor aceae ▁are ▁root ▁par as it ic ▁rather ▁primitive ▁dic ots ▁but ▁not ▁closely ▁related . ▁Poss ibly , ▁the ▁O xy c ory n ini ▁which ▁feed ▁on ▁them ▁shift ed ▁to ▁these ▁plants ▁from ▁the ▁ones ▁par as it ized . ▁It ▁is ▁likely ▁that ▁the ▁initial ▁host ▁switch ▁was ▁to ▁Bal an op hor aceae , ▁but ▁these ▁par as it ize ▁a ▁wide ▁range ▁of ▁trees ▁so ▁little ▁more ▁can ▁be ▁said ▁at ▁present . ▁ ▁Gallery ▁of ▁O xy c ory n ini ▁host ▁plants ▁ ▁Foot notes ▁ ▁References ▁▁ ▁( 2 0