Oh, that is interwsting. Do you have a photo of the 'em both? I was thinking xebrina because of the really unusually wide mid-rib and notches in the stripes
Ok rewording:
I thought it might be zebrina because there basically no midrib like the ones in other photos of warszewiczii. What seems to be the midrib looks to be the inter-rib spacing; and the ribs themselves extend fully to the central vein, with a notch in them, which is also a pretty common zebrina thing, but not exhibited on warszewiczii.