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Abstract:
When the only available syntype of Perla occipitalis , a female from Philadelphia, was designated as lectotype (Zwick 1972: Rev. su isse de Zool. 78 (1971): 1176) the author, like previous authors, believed it to be conspecific with Chloroperla clymene Newman, 1839. In view of the recently discovered diversity of Nearctic Neoperla , clarification of the species' identity was suggested by Dr. B. P. Stark (Clinton, Miss.).
