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Striped bark scorpion : ウィキペディア英語版 | Striped bark scorpion
The striped bark scorpion (''Centruroides vittatus'') is an extremely common scorpion found throughout the midsection of the United States and northern Mexico. It is perhaps the most frequently encountered scorpion in the U.S. ==Appearance==
A medium-sized scorpion that is rarely longer than 70 mm (up to around 2 3/4 inches), the striped bark scorpion is a uniform pale-yellow scorpion that can be identified by two dark, longitudinal stripes on its carapace, with a dark triangular above the ocular tubercle. There are minor variations on this theme, however; specimens that are lighter-colored and lack the characteristic stripes have been described as separate species in the past. Their color suits their environment well, providing them with a natural camouflage from predators as well as prey. Males have a pectinal tooth count of 21-30, while females count 20-27.〔Shelley, R. M., and Sissom, W. D. (1995). Distributions of the scorpions ''Centruroides vittatus'' (Say) and ''Centruroides hentzi'' (Banks) in the United States and Mexico (Scorpiones, Buthidae). ''J. Arachnol''. 23: 100–110.〕
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