▁Tre aty ▁of ▁Paris ▁of ▁ 1 8 9 8 ▁and ▁conducted ▁its ▁first ▁census ▁of ▁Puerto ▁Rico , ▁finding ▁that ▁the ▁combined ▁population ▁of ▁An con es , ▁Pal mas ▁and ▁Gu ás imas ▁bar rios ▁was ▁ 5 9 6 . ▁ ▁See ▁also ▁ ▁List ▁of ▁communities ▁in ▁Puerto ▁Rico ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : Bar rios ▁of ▁Ar roy o , ▁Puerto ▁Rico <0x0A> </s> ▁Ges on ula ▁is ▁a ▁genus ▁of ▁grass ho ppers ▁( C ael if era : ▁Ac rid idae ) ▁in ▁the ▁sub family ▁O xy inae . ▁Species ▁can ▁be ▁found ▁in ▁India ▁through ▁sout heast ▁Asia ▁to ▁n ortheast ▁Australia . ▁ ▁Species ▁The ▁Orth optera ▁Species ▁File ▁lists : ▁Ges on ula ▁m und ata ▁( W alk er , ▁ 1 8 7 0 ) ▁Ges on ula ▁pun ct if rons ▁( St å l , ▁ 1 8 6 1 ) ▁type ▁species ▁( as ▁Ac rid ium ▁pun ct if rons ▁St å l ) ▁Ges on ula ▁sz ema o ensis ▁Zh eng , ▁ 1 9 7 7 ▁ ▁References ▁ ▁Category : O xy inae ▁Category : Ac rid idae ▁gener a ▁Category : In sect s ▁of ▁Asia ▁Category : Or th optera ▁of ▁Ind o - Ch ina <0x0A> </s> ▁David ▁Krist ol ▁( born ▁ 1 9 3 8 ) ▁is ▁an ▁Emer it us ▁Professor ▁at ▁New ▁Jersey ▁Institute ▁of ▁Technology ▁( N J IT ). ▁