Eurema elathea
Uncommon(?) up to 1200 m.; probably widespread and common in lowlands, especially in disturbed, grassy habitats. Puddles and visits flowers. I don't know which subspecies occurs in Cusco.
Similar species: Virtually identical to E. daira (I have no Cusco records; it may not occur) but the terminal band on male's DFW is straight in elathea, slightly bowed in daira.
Eurema reticulata
Uncommon 1000-3100 m., mostly above 1500 m. Puddles and visits flowers.
Similar species: HW rounder than any similar species. Note that reticulata has a black cellspot VFW, like E. salome.
Eurema xantochlora
Fairly common 700-1500 m. Puddles and visits flowers. I don't know which subspecies occur(s) in Cusco.
Similar species: VHW not marked with orange 'cobwebbing' like E. salome or E. reticulata. V can be very similar to male E. arbela, but arbela has a more tailed HW and usually (always?) has brown markings towards VHW apex.
Eurema arbela
Uncommon(?) up to 1150 m. Possibly found mostly in dry valleys, though probably occurs in more humid lowlands too. I don't know which subspecies occur(s) in Cusco.
Similar species: Female's strongly tailed HW is distinctive(?); male can be very similar to E. xantochlora but has a more tailed HW and usually has brown markings hear VHW apex; xantochlora also lacks black margin DHW.
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