Species of true bug
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Neotibicen winnemanna, commonly called the Eastern scissor(s) grinder, is a species of large bodied annual cicada in the genus "Neotibicen". It is native to the Eastern United States, particularly the Piedmont Plateau and the outlying lower mountainous elevations of the Appalachians and inner, western portion of the Atlantic coastal plain.
Description.
"Neotibicen winnemanna" is very similar to, but ultimately distinguished from, its midwestern and coastal counterparts, "Neotibicen pruinosus" and "Neotibicen latifasciatus", respectively. The males of each of the three species share a highly similar mating call, characterized by a crescendo of continuous pulsation. A characteristic that can distinguish "N. winnemanna" from the other two similar-sounding scissor grinder cicadas is its range; "N. winnemanna" occupies a swath of land roughly approximating the Appalachian Mountains from southern New York in the north to northern Georgia and central Alabama to the south. "N. winnemanna" populations do not appear to be common in maritime forests or other coastal vegetation, distinguishing them from "N. latifasciatus", though they may approach the inland coastal waterways of the East Coast of the United States, such as estuaries and bays. However, distinguishing from "N. pruinosus" may be more difficult, particularly in terms of range and in areas in the upper Southeastern United States in which certain populations of the two species may overlap, with potential gradations between "N. winnemanna" and "N. pruinosus".
The call of "N. winnemanna" males itself is characterized by a loud, pulsating buzz lasting about twenty seconds per call with between one and two pulsations per second of alternating pitch interspersed and at a frequency that gradually crescendos until tapering off into a low, soft buzz. They commonly call from the upper branches of deciduous trees, particularly at dusk. "N. winnemanna" is an annual cicada, meaning they emerge from the ground each year, generally between June and September, with a peak generally in September.
"Neotibicen winnemanna" is typically distinct from "Neotibicen linnei", Linne's cicada, the range of which overlaps somewhat with that of "N. winnemanna", though Reynolds (2008) speculates that some of the physical characteristics of "N. linnei", such as its bowing of the costae (the leading edges of its wings) and elongation of the opercula (the covers on its underside of its tympanae, or eardrums), are similar to those of "N. winnemanna" on account of possible hybridization between the species. As a result, suspected hybrid populations exist, though such hybridization has not been positively verified.
References.
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