Twolined Spittlebug
Prosapia bicincta

Photo courtesy Pete Williams, Gulf Breeze, Florida
Copyright (c) 2007 Pete Williams
May 25, 2007

The twolined spittlebug is one of the largest and most colorful spittlebugs in the Escambia region. The colors are probably aposematic (warning), since the adults produce a pungent chemical when disturbed that smells like that produced by lady beetles.

Both nymphs and adults cause feeding injury. Nymphs feed on various grasses (including corn), especially centipedegrass. There they produce the characteristic "spittle" that gives the family its name. The adults feed on the underside of American holly foliage, and some of its hybrids. The pale blotches they produce are not usually visible from above.

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