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Syromastes rhombeus
The only squashbug with such a broad and distinctly diamond-shaped abdomen. Nymphs have very pointed abdominal tergites, each bearing a strong spine. Adults emerge and mate in the spring; nymphs can be found June-August feeding on sandworts, spurreys and other plants in the Caryophyllaceae.
Dispersed pine tree forest. Mountains. Parque Nacional de Sierra de Guadarrama.
It is a pest to pumpkins and other cucurbitaceae.
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