tail ▁or ▁hair y ▁pipe v ine ▁sw allow tail , ▁is ▁a ▁sub species ▁of ▁the ▁pipe v ine ▁sw allow tail ▁that ▁is ▁en demic ▁to ▁Northern ▁California ▁in ▁the ▁United ▁States . ▁Pop ulations ▁are ▁found ▁throughout ▁the ▁Sac r amento ▁Valley ▁and ▁outside ▁of ▁the ▁valley ▁in ▁Cont ra ▁Costa ▁and ▁Al amed a ▁count ies . ▁The ▁but ter fly ▁is ▁black ▁with ▁h ind w ings ▁that ▁have ▁ir ides cent ▁green - blue ▁color ing ▁above ▁and ▁a ▁row ▁of ▁red ▁sp ots ▁below ; ▁the ▁c ater p ill ars ▁are ▁black ▁with ▁f les hy ▁pro tr us ions ▁and ▁red ▁sp ots . ▁The ▁sub species ' ▁but ter f lies ▁are ▁smaller ▁in ▁size ▁and ▁ha i rier ▁than ▁the ▁species , ▁and ▁they ▁lay ▁eggs ▁in ▁larger ▁cl utch ▁sizes ▁than ▁the ▁species . ▁The ▁egg ▁cl ut ches ▁are ▁depos ited ▁on ▁the ▁shoot ▁tips ▁of ▁the ▁California ▁pipe v ine , ▁a ▁per enn ial ▁v ine ▁native ▁to ▁rip arian , ▁chap ar ral , ▁and ▁wood land ▁e cos ystem s ▁of ▁the ▁California ▁Coast ▁R anges , ▁Sac r amento ▁Valley , ▁and ▁Sierra ▁Nev ada ▁fo oth ills . ▁The ▁lar va e ▁feed ▁exclus ively ▁on ▁the ▁fol i age ▁and ▁shoot ▁tips ▁of ▁the ▁pipe v ine , ▁although ▁adult s ▁eat ▁fl oral ▁ne ct ar ▁from ▁a ▁variety ▁of ▁plants . ▁The ▁plant ▁contains ▁a ▁to xic ▁subst ance , ▁ar