Invasive Species Compendium

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Abstract

Life cycle and host plants of Lepyronia coleoptrata (L.) (Auchenorrhyncha Cercopidae) in northern Italy.

Abstract

The life cycle and host plants of Lepyronia coleoptrata (L.), one of the most common and widespread spittlebugs in the Palaearctic Region, were studied in northeastern Italy. Field samplings and outdoor rearings of nymphs and adults were carried out. Nymphs were found to feed on many herbaceous plants and also on some arboreous ones (apple, hazel and willow). Taraxacum officinale L. is the species on which the greatest number of specimens was observed. Adults were observed from the end of May to mid-November, with three peaks respectively in mid-June, late August-early September and early October. Nymphs were observed from May to November with three peaks respectively in early June, mid-July and late September. During the winter, in outdoor rearings, the spittlebug was observed only as eggs (in live and dead part of herbaceous plants). The data collected show that in the investigated area L. coleoptrata overwinters mainly in the egg stage and has three generations a year.