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Really, the first scene shows an assemblage of Thaumatomyia notata (Meigen), Chloropidae [compare many comments on other pictures]. Pschorn-Walcher, H. (1956) Chloropiden als Kostgänger von Chrysomelidenlarven. – Zoologischer Anzeiger 156: 318-319, reported just the same observation and he mentioned a second species, Lasiosina albipila (Loew , 1866) feeding together with T. notata. In the 2nd scene several Lasiosina specimens (possibly also albipila) are present. The upper specimen seems to possess an extremely wide gena (= jowl), but surely a certain yellow background is the reason as albipila has a narrower gena. Worldwide several Chloropidae visit squeezed insects with stinking or poisonous hemolymph or exsudations, for example Tricimba, Trachysiphonella and Oscinimorpha spp., may be to become protected against predators. The 2 eggs do not belong to the two chloropid species, those possess smaller and narrower eggs.