Isoperla emarginata (Crescent Stripetail)

[another specialist]

Isoperla emarginata - Harden and Mickel, 1952
A Stonefly

Concept Reference: Stark, B. 1996, October 12, 1998 last update. North American Stonefly List. Online. Available: www.mc.edu/campus/users/stark/stonefly.html. 1996, December 23.
Concept Reference Code: N96STA01EHUS
Name Used in Concept Reference: Isoperla emarginata

Taxonomic Comments: Described from only a single female specimen; further taxonomic work is needed.

Global Status: GHQ
Global Status Last Reviewed: 20Sep1999
Global Status Last Changed: 20Sep1999
Rounded Global Status: GH - Possibly Extinct

Reasons:
Only known from a single female specimen collected in Grande Marais, Minnesota in 1952. Taxonomic validity will be clarified by the revision of eastern North American ISOPERLA by S.W. Szczytko.

Nation: United States
National Status: NH

www.natureserve.org/explorer/servlet/NatureServe?searchName=Isoperla+emarginata

[Bowhead Whale]

Whay was it called "emarginata"?

[Sebbe]

A Review of the Eastern Nearctic Isoperlinae (Plecoptera: Perlodidae) with the description of twenty-two new species

The holotype female of I. emarginata was collected on 13 July 1939 at Grand Marais, Minnesota along Lake Superior. Recent efforts by the authors to collect at the type locality have not produced any specimens that can be referred to this species.

illiesia.speciesfile.org/papers/Monographiae-of-Illiesia.pdf