 |
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| Schaumzikaden f (Cercopidae) | |||
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| Schaumhülle f; Wiesenschaumzikade f (Philaenus leucophthalmus, Philaenus spumarius); Kuckucksspeichel m (Philaenus leucophthalmus, Philaenus spumarius) | |||
| spittle bugs: 6 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 5 |
| Zoology | 1 |