Amphinemura, Ris, 1902

Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, Illiesia 6 (9), pp. 75-97 : 76

Genus Amphinemura

Amphinemura males present an amazing diversity of bizarre secondary genital characters and species distinction is not normally a problem, even among close relatives. However, females are often externally rather similar. It is therefore suggested to illustrate the internal female genital sclerites whenever possible. Their examination will not be practical in routine identifications but may provide important help in critical distinctions, for example when new regional records are to be based on only females. The present study provides sketches of sclerotized vaginal structures for diagnostic purposes only. The attachment of the two hyaline seminal receptacles typical of the family lies on top and is easily seen while the unpaired oviduct lies ventrally and is rarely noticed under the folded and partly sclerotized copulatory pouch ( Zwick 1973c). A full understanding of structural details and how particular folds interconnect would require special study and was not attempted.