Spittlebug nymph, SEM

Bildnummer 12300720
Spittlebug nymph, SEM
Coloured scanning electron micrograph (SEM) of Common meadow spittlebug nymph (Philaenus spumarius). Spittlebugs (also know as froghoppers or cuckoo spit bugs) are small insects from the family Cercopidae. The nymphs (immature stage) produce a foamy substance resembling spit along the stems of plants that serves a number of purposes. It hides the nymph from predators and parasites and insulates against heat and cold, providing thermal and moisture control. The nymphs pierce plant stems and suck sap with their needle-like mouthparts (as seen in this image). The nymphs feed face down on the stem, and as excess sap is excreted out the anus, it is mixed with a substance secreted by epidermal glands that enhances surface viscosity and stabilizes the foam to make it last longer. This mixture is forced out of the abdomen under pressure and as it is mixed with air, it forms bubbles. A few species are serious agricultural pests. Magnification: x6 when
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / DENNIS KUNKEL MICROSCOPY
Bildgröße: 2653 px × 3294 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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