Protective sociality in grasshoppers
Schützendes Sozialverhalten bei Heuschrecken
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Our field studies on two species of the African family Pyrgomorphidae, Zonocerus elegans and Phymateus leprosus, revealed pharmacophagy as the basis for their conspicuous colouration that acts as warning device to predators. We obtained morphological data in Zonocerus elegans and related them to the mating behaviour.
Both species form social aggregations, Z. elegans when egg laying, P. leprosus in the hopper stages.

Morphology and mating
Morphologie und Paarungsverhalten
Fressen von chemischen Stoffen
Egg deposition

Zonocerus elegans pair in copula
© Seibt & Wickler

Phymateus leprosus pair in mate-guarding
position       © Seibt & Wickler