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Two Heptageniid Mayfly Species of Thalerosphyrus Eaton (Ephemeroptera: Heptageniidae) from Vietnam  

Nguyen Van Vinh (Department of Biology, College of Natural Science, Seoul Women's University)
Bae Yeon Jae (Department of Biology, College of Natural Science, Seoul Women's University)
Publication Information
Animal Systematics, Evolution and Diversity / v.20, no.2, 2004 , pp. 215-223 More about this Journal
Abstract
Two species of the heptageniid mayfly genus Thalerosphyrus Eaton, T. vietnamensis (Dang) and T. separatus n. sp., are described from Vietnam. Thalerosphyrus separatus can be distinguished by the basally detached posterolateral expansions of pronotum in larva and by the Y -shaped penes in male adult. Their larval and adult stages are described with line-drawings of diagnostic characters. Their diagnoses, distributions, habitat and ecological data, and taxonomic remarks are provided.
Keywords
Thalerosphyrus separatus; Thalerosphyrus vietnamensis; Taxonomy; tropical Asia;
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  • Reference
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