▁l ays ▁its ▁eggs ▁in ▁the ▁flower ▁bud s ▁of ▁the ▁host - plant ▁and ▁the ▁lar va e ▁develop ▁within ▁the ▁flowers . ▁O v ip osition ▁and ▁feed ing ▁damage ▁the ▁bud s ▁of ▁oil seed ▁ra pe ▁and ▁similar ▁Br ass icas ▁and ▁may ▁cause ▁the ▁flowers ▁to ▁drop . ▁Both ▁adult s ▁and ▁lar va e ▁feed ▁on ▁the ▁pol len ▁and ▁ne ct ar ▁in ▁the ▁flowers . ▁ ▁See ▁also ▁List ▁of ▁pol len ▁be et les ▁( N it id ul idae ) ▁recorded ▁in ▁Britain ▁ ▁References ▁▁ ▁Aud is io , ▁P ., ▁A . ▁R . ▁C line , ▁A . ▁De ▁Bi ase , ▁G . ▁Anton ini , ▁E . ▁Man c ini , ▁M . ▁Tri zz ino , ▁L . ▁Cost ant ini , ▁et ▁al . ▁( 2 0 0 9 ). ▁" Pre lim inary ▁re - ex am ination ▁of ▁genus - level ▁tax onomy ▁of ▁the ▁pol len ▁be et le ▁sub family ▁Mel ig eth inae ▁( C ole optera : ▁N it id ul idae ) ". ▁Act a ▁Ent om olog ica ▁Muse i ▁National is ▁Prag ae , ▁vol . ▁ 4 9 , ▁no . ▁ 2 , ▁ 3 4 1 – 5 0 4 . ▁ ▁Further ▁reading ▁▁ ▁Ar nett , ▁R . ▁H . ▁Jr ., ▁M . ▁C . ▁Thomas , ▁P . ▁E . ▁Sk elle y ▁and ▁J . ▁H . ▁Frank .