ma , ▁has ▁become ▁established ▁in ▁the ▁United ▁States ). ▁The ▁gener a ▁Ex a er ete ▁and ▁Ag la e ▁are ▁kle ptop ar as ites ▁in ▁the ▁n ests ▁of ▁other ▁orch id ▁be es . ▁All ▁except ▁E ula ema ▁are ▁character ized ▁by ▁brilliant ▁met all ic ▁color ation , ▁primarily ▁green , ▁gold , ▁and ▁blue . ▁ ▁Fem ales ▁gather ▁pol len ▁and ▁ne ct ar ▁as ▁food ▁from ▁a ▁variety ▁of ▁plants , ▁and ▁res ins , ▁mud ▁and ▁other ▁materials ▁for ▁nest ▁building . ▁Some ▁of ▁the ▁same ▁food ▁plants ▁are ▁also ▁used ▁by ▁the ▁males , ▁which ▁leave ▁the ▁nest ▁upon ▁h atch ing ▁and ▁do ▁not ▁return . ▁ ▁Fra gr ance ▁collection ▁ ▁Male ▁orch id ▁be es ▁have ▁uniqu ely ▁modified ▁legs ▁which ▁are ▁used ▁to ▁collect ▁and ▁store ▁different ▁vol atile ▁comp ounds ▁( o ften ▁est ers ) ▁throughout ▁their ▁lives , ▁primarily ▁from ▁orch ids ▁in ▁the ▁subt rib es ▁Stan ho pe inae ▁and ▁Cat aset inae , ▁where ▁all ▁species ▁are ▁exclus ively ▁pol lin ated ▁by ▁e ug loss ine ▁males . ▁These ▁orch ids ▁do ▁not ▁produce ▁ne ct ar , ▁and ▁hide ▁the ▁pol len ▁on ▁a ▁single ▁an ther ▁under ▁an ▁an ther ▁cap ; ▁they ▁are ▁not ▁visited ▁by ▁females . ▁The ▁whole ▁pol lin arium ▁becomes ▁attached ▁to ▁the ▁male ▁as ▁it ▁leaves ▁the ▁flower . ▁Several ▁flowers ▁from ▁other ▁plant ▁families ▁are ▁also ▁visited ▁by ▁the ▁be es :