▁Bibli ography ▁ ▁External ▁links ▁E SD S ▁Long itud inal ▁website ▁ ▁Mill en ni um ▁C oh ort ▁Study ▁data ▁sets ▁Centre ▁for ▁Long itud inal ▁Studies ▁website ▁ ▁Category : B rit ish ▁medical ▁research ▁Category : B rit ish ▁society ▁Category : Child ▁w elf are ▁in ▁the ▁United ▁Kingdom ▁Category : C oh ort ▁studies ▁Category : D em ograph ics ▁of ▁the ▁United ▁Kingdom ▁Category : U CL ▁Institute ▁of ▁Education <0x0A> </s> ▁Ter at odes , ▁commonly ▁known ▁as ▁h ood ed ▁grass ho ppers , ▁is ▁a ▁genus ▁of ▁grass ho pper ▁native ▁to ▁India ▁and ▁Sri ▁L anka . ▁ ▁It ▁was ▁established ▁by ▁the ▁French ▁ent om ologist ▁G asp ard ▁August e ▁Br ull é ▁in ▁ 1 8 3 5 . ▁ ▁The ▁type ▁species ▁is ▁Ter at odes ▁mont ic oll is , ▁which ▁was ▁described ▁by ▁the ▁English ▁zo ologist ▁George ▁Robert ▁Gray ▁in ▁ 1 8 3 2 ▁as ▁G ry ll us ▁mont ic oll is . ▁ ▁H ood ed ▁grass ho ppers ▁feed ▁on ▁tree ▁leaves , ▁and ▁they ▁can ▁become ▁serious ▁p ests ▁of ▁te ak ▁and ▁sand al wood . ▁Both ▁the ▁n ym ph s ▁and ▁adult s ▁of ▁the ▁species ▁are ▁d ull ▁green ▁in ▁color . ▁The ▁pron ot um ▁exp ands ▁into ▁a ▁large ▁sharp ▁" hood " ▁structure ▁ed ged ▁with ▁yellow - or ange , ▁giving ▁them ▁the ▁general ▁appearance ▁of ▁a ▁leaf . ▁ ▁Species ▁Three