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