Butterflies in Brazil/Argentina (1 Viewer)

[vernon]

Can anyone assist with ID of these Butterflies photographed in Brazil & Argentina during Sept 2018? My tentative thoughts are below
1. Puerto Iguacu, Argentina ? Isabella's Longwing Eueides isabella dianasa
2. Puerto Iguacu, Argentina ?? a Cracker species perhaps
3/4. REGUA, Brazil ?Ethilia Longwing Heliconius ethilla narcaea

thanks to anyone who can help

 

[THE_FERN]

1) is an ithomiine
2) is Hamadryas
3), 4) Heliconius (compare anntennae with 1)