ated ▁body , ▁with ▁a ▁pointed ▁head ▁( h ence ▁the ▁species ▁name ▁ac umin ata ). ▁The ▁basic ▁body ▁color ▁is ▁light ▁brown ▁ ▁with ▁dark er ▁brown ▁longitud inal . ▁The ▁n ym ph s ▁are ▁already ▁rather ▁similar ▁to ▁the ▁adult s , ▁although ▁they ▁are ▁still ▁wing less . ▁ ▁Bi ology ▁A elia ▁ac umin ata ▁is ▁a ▁un iv olt ine ▁species . ▁They ▁have ▁five ▁n ym phal ▁stages ▁in ▁their ▁development . ▁Ad ult s ▁over w inter ▁in ▁l itter ▁or ▁thick ets . ▁These ▁bugs ▁are ▁her b iv orous , ▁feed ing ▁on ▁various ▁wild ▁grass es ▁and ▁c ere als . ▁They ▁su ck ▁many ▁different ▁types ▁of ▁grass es ▁( Po aceae ), ▁mainly ▁Fest uca , ▁Po a , ▁Ag rost is , ▁D act yl is , ▁L ol ium ▁and ▁B rom us ▁species . ▁They ▁can ▁cause ▁significant ▁damage ▁in ▁c ere al ▁fields . ▁ ▁Gallery ▁ ▁Bibli ography ▁ ▁Michael ▁Ch in ery , ▁In sect es ▁de ▁France ▁et ▁d ' Europe ▁occident ale , ▁Paris , ▁Fl am mar ion , ▁août ▁ 2 0 1 2 , ▁ 3 2 0 ▁p . ▁( ), ▁p .   7 2 - 7 3 ▁ ▁Amy ot , ▁C . ▁J . ▁B ., ▁and ▁Aud inet ▁Ser ville ▁( 1 8 4 3 ), ▁Histoire ▁Nature lle ▁des ▁In sect es ▁H ém ipt ères ▁ ▁Ru iz , ▁D .,