2011-08-30 Vienna XXII. district, Lobau - Danube National Park (155 msm Quadrant 7864/2).On juvenile Euphorbia sp., most likely Euphorbia cyparissias (young growth after the bushfire - click here).German name: Wolfsmilchschwrmer (Raupe)Compare for ID also www.schmetterling-raupe.de/art/euphorbiae.htm