New data on polymorphism of the meadow spittlebug Philaenus spumarius (L.) (Hemiptera: Aphrophoridae) from the island of Sao Miguel (Azores)

作者：Borges Paulo A V^*; Rodrigues Ana S B; Silva Sara E; Seabra Sofia G; Paulo Octavio S; Quartau Jose A

来源：Zootaxa, 2018, 4369(1): 144-150.

DOI：10.11646/zootaxa.4369.1.9

• colour polymorphism
• meadow spittlebug
• elevation
• Azores

The meadow spittlebug, Philaenus spumarius (L.) (Hemiptera, Aphrophoridae) is a widespread insect species in the Holarctic region, exhibiting a dorsal colour balanced polymorphism. In the Azores the species is known from high elevations in Terceira and Sao Miguel islands. A sample of 235 individuals from Pico da Vara and Graminhais protected areas (Sao Miguel, Azores) (between 645 and 935 m a. s. l.), collected in 2000 and 2017, showed a remarkable high frequency of the melanic morphs flavicollis (FLA) and quadrimaculatus (QUA). In addition, a high frequency of melanics was observed in males. We explore the hypotheses for the origin of Azorean colonization and for the high proportion of melanism in the Azorean populations.

• 出版日期2018-1-3