▁in ▁South ▁Florida , ▁inhab iting ▁p ine ▁rock land ▁habit ats . ▁In ▁recent ▁years , ▁populations ▁of ▁the ▁but ter fly ▁have ▁notice ably ▁decl ined . ▁By ▁virtue ▁of ▁its ▁special ized ▁habitat ▁requirement , ▁and ▁location ▁in ▁habit ats ▁that ▁face ▁thre ats ▁from ▁sea ▁level ▁rise , ▁the ▁but ter fly ▁is ▁considered ▁threatened ▁by ▁climate ▁change . ▁ ▁Description ▁▁ ▁The ▁dus ky wing ▁ski pper ▁has ▁a ▁wings pan ▁of ▁around ▁ ▁inches ▁( 4 8   mm ). ▁The ▁d ors al ▁side ▁of ▁the ▁male ' s ▁wing ▁is ▁dark ▁brown ▁with ▁a ▁she en , ▁and ▁a ▁circle ▁of ▁white ▁transparent ▁sp ots ▁near ▁the ▁a pe x ▁with ▁a ▁broad ▁l ighter ▁brown ▁margin ▁on ▁the ▁h ind wing . ▁The ▁d ors al ▁side ▁of ▁the ▁female ' s ▁wing ▁is ▁brown ▁with ▁dark ▁m ott ling ▁and ▁dark ▁outer ▁marg ins . ▁Fem ales ▁have ▁larger ▁and ▁more ▁numerous ▁d ors al ▁sp ots ▁than ▁males . ▁When ▁fresh ly ▁emer ged , ▁both ▁sex es ▁have ▁a ▁pur pl ish ▁she en ▁on ▁the ▁d ors al ▁side ▁of ▁the ▁for ew ing . ▁The ▁c ater p ill ar ▁is ▁a ▁small ▁and ▁transl uc ent ▁green . ▁The ▁head ▁is ▁black ▁with ▁orange ▁patch es ▁on ▁the ▁sides ▁and ▁upper ▁face . ▁A ▁dark ▁line ▁border ed ▁in ▁yellow ▁is ▁on ▁the ▁back ▁with ▁yellow ▁lines ▁along ▁the ▁sides ▁and ▁multiple ▁small ▁yellow ▁sp ots . ▁