Abstract Stenoperla (Eustheniidae: Stenoperlinae), the only New Zealand genus in the family, is revised. A new diagnosis and keys to species are given and two new species are added bringing the total to four. Australian species previously assigned to Stenoperla are removed to Cosmioperla new genus and diagnoses for it and its species groups are included. A key to all genera in Stenoperlinae is also given. Habitus illustrations, drawings of genitalia, and other parts of diagnostic value are added.
Keywords systematics; Plecoptera; Eustheniidae; Stenoperlinae; Stenoperla; Cosmioperla; new genus; new species; New Zealand; Australia
Received 27 July 1995; accepted 8 December 1995
New Zealand Journal of Zoology, 1996, Vol. 23: 165‚182 0301‚4223/2302‚0165 $2.50/0 © The Royal Society of New Zealand 1996
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