ame ) ▁ ▁A . ▁a . ▁am py x ▁( Dr ury , ▁ 1 7 8 2 ) ▁( B raz il : ▁Rio ▁de ▁Janeiro ) ▁ ▁A . ▁a . ▁tro as ▁St ich el , ▁ 1 9 0 9 ▁( B ol iv ia ) ▁ ▁References ▁ ▁Category : R iod in idae ▁Category : R iod in idae ▁of ▁South ▁America ▁Category : But ter f lies ▁described ▁in ▁ 1 7 8 1 ▁Category : Des cri ptions ▁from ▁Illustr ations ▁of ▁Ex otic ▁Ent om ology ▁Category : T ax a ▁named ▁by ▁Cas par ▁St oll <0x0A> </s> ▁Gilbert ▁D egr ém ont ▁( born ▁in ▁ 1 9 0 8 ▁in ▁Le ▁C ate au , ▁Nord , ▁France , ▁died ▁on ▁November ▁ 2 2 , ▁ 1 9 7 4 ) ▁was ▁a ▁French ▁water ▁treatment ▁expert ▁and ▁the ▁founder ▁of ▁D egr ém ont ▁SA , ▁a ▁water ▁treatment ▁company . ▁ ▁Early ▁life ▁and ▁career ▁▁ ▁Gilbert ▁D egr ém ont ▁was ▁the ▁grand son ▁of ▁Al de bert ▁D egr ém ont , ▁head ▁of ▁a ▁mechanical ▁construction ▁work shop ▁in ▁Le ▁C ate au , ▁in ▁the ▁north ▁of ▁France ▁from ▁ 1 8 7 0 ▁until ▁the ▁early ▁ 2 0 th ▁century . ▁In ▁ 1 9 0 4 , ▁Al de bert ▁retired , ▁leaving ▁the ▁business ▁to ▁his ▁son ▁É mile , ▁who ▁had ▁created ▁his ▁own ▁company , ▁É tab