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the upper one looks very much like O. ornata and the lower one looks very much like O. viridula. The upper one is quit short and it must be an immature larva. Does it have scarse and long hairs on the abdomen. If so then O. ornata is most likely, but then again O. ornata larvae can reach over 30 mm. In the lower one you have to check if the ventral side of the head has a pair of brushes of hairs on both sides. If so, then O. viridula.