Abstract
A new species found in northern Thailand and northern India, Waynokiops pentacanthus sp. n., is described based on eggs, larvae, subimagines and imagines of both sexes associated by rearing. A new species from southern India, Waynokiops palifer sp. n. is described based on a mature larva with female subimago and eggs extracted from this larva. All larvae of both species were collected in rivers running in mountain areas. Formerly, the genus Waynokiops Hill et al. 2010 included a single species W. dentatogriphus Hill et al. 2010 known from a few larvae collected in lakes of North America and unknown before 2007. Based on the fact that two newly discovered species of Waynokiops have an Oriental distribution, an assumption is expressed, that W. dentatogriphus is also originally distributed somewhere in the Oriental Region, from where it was introduced into North America. Winged stages are described for Waynokiops for the first time, allowing a more complete generic diagnosis and a better understanding of its systematic position.
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