▁by ▁the ▁time ▁the ▁lar va e ▁have ▁finished ▁their ▁development ▁to ▁pup ation , ▁the ▁host ▁con es ▁are ▁typically ▁already ▁disc arded ▁by ▁the ▁plant ▁and ▁have ▁shed ▁their ▁se eds . ▁Very ▁old ▁con es ▁that ▁are ▁slowly ▁ro tt ing ▁on ▁the ▁forest ▁floor ▁are ▁also ▁taken , ▁demonstr ating ▁the ▁evolution ary ▁link ▁between ▁O xy c ory n ini ▁and ▁the ▁other ▁Bel idae ▁which ▁also ▁feed ▁on ▁decay ing ▁wo ody ▁t issue , ▁but ▁of ▁tw igs ▁and ▁st ems . ▁ ▁Par alloc ory n us ▁has ▁to ▁date ▁only ▁been ▁collected ▁from ▁the ▁cy c ad ▁genus ▁D io on . ▁Similarly ▁Rh op al ot ria ▁is ▁associated ▁with ▁various ▁species ▁of ▁Zam ia ▁cy c ads , ▁though ▁one ▁of ▁the ▁as ▁yet ▁und es cribed ▁species ▁was ▁collected ▁from ▁D io on ▁spin ulos um . ▁It ▁seems ▁that ▁the ▁species ▁of ▁Rh op al ot ria ▁are ▁mon oph ag ous ▁- ▁like ▁R . ▁sl os son i ▁on ▁Co ont ie ▁( Z . ▁p um ila ) ▁or ▁R . ▁m oll is ▁on ▁Card board ▁Cy c ad ▁( Z . ▁fur fur ace a ) ▁- ▁but ▁more ▁research ▁in ▁Zam ia ▁species ▁in ▁necessary ▁to ▁verify ▁this . ▁These ▁two ▁bel id ▁gener a ▁are ▁very ▁important ▁pol lin ators ▁of ▁their ▁host ▁cy c ads ; ▁the ▁lar va e ▁feed ▁primarily ▁on ▁the ▁sp or oph yll s . ▁ ▁Al