The Nemourinae (Insecta, Nemouridae) of the eastern Nearctic.

Morphology-based concepts of the 26 eastern Nearctic species of the subfamily Nemourinae (Insecta, Nemouridae) Billberg, 1820 are reviewed. Nemourinae is represented in this region by Nemoura Latrielle, 1796, Ostrocerca Ricker, 1952, Paranemoura Needham & Claassen, 1925, Podmosta Ricker, 1952, Prostoia Ricker, 1952, Shipsa Ricker, 1952, Soyedina Ricker, 1952, and Zapada Ricker, 1952. Wing venation and patterns of mottling are depicted with standard light microscopy.

Systematics of eastern Nearctic Leuctra moha Ricker, 1952 with notes on L. hicksi Harrison amp; Stark, 2010 (Plecoptera: Leuctridae).

The female of eastern Nearctic Leuctra moha Ricker, 1952 is formally described for the first time. The identity of the female was confirmed with tree- and genetic distance-based phylogenetic methods. An emended description is also provided for the male.

Soyedina Ricker, 1952 (Plecoptera: Nemouridae) in the eastern Nearctic: review of species concepts, proposed morphology-based species groups, and description of a new species from North Carolina.

The eastern Nearctic species of the genus Soyedina Ricker, 1952 (Plecoptera: Nemouridae) are reviewed. Two morphology-based species groups are proposed based on epiproct characteristics. Soyedina sheldoni sp.

Alloperla clarki sp. nov. (Plecoptera: Chloroperlidae), a new species from the eastern Nearctic with discussion of a new species group.

Alloperla Banks, 1906 (Plecoptera: Chloroperlidae) is a speciose genus of spring- and summer-emergent stoneflies known from the Oriental, eastern Palearctic, and Nearctic realms. Over 50 species are currently recognized. Alloperla clarki sp.

Perlesta armitagei n. sp. (Plecoptera: Perlidae): More cryptic diversity in darkly pigmented Perlesta from the eastern Nearctic.

Perlesta Banks, 1906 (Plecoptera: Perlidae) is a genus of small, summer-emergent stoneflies known primarily from the eastern Nearctic. Thirty-two species are currently recognized, including two from China and nymphs have been reported from Costa Rica. We report here on some cryptic diversity within a small group of Perlesta with dark wings and bodies.

The stoneflies (Insecta, Plecoptera) of the Talladega Mountain region, Alabama, USA: distribution, elevation, endemism, and rarity patterns.

Background The Talladega Mountain region of eastern Alabama is the southernmost outlier of the ancient Appalachian Mountains, including the highest peaks and ranges in the state. Collections of stoneflies (Plecoptera) previously here have been sporadic yet has led to several new species descriptions in modern times (James 1974, James 1976, Stark and Szczytko 1976, Kondratieff and Kirchner 1996, Szczytko and Kondratieff 2015) and expanded our understanding of southeastern US stoneflies. During the period 2003-2012 we conducted an intensive inventory of the stonefly fauna of the Talladega Mountain region.

Atlas of Ohio Aquatic Insects: Volume II, Plecoptera.

Background: We provide volume II of a distributional atlas of aquatic insects for the eastern USA state of Ohio. This treatment of stoneflies (Plecoptera) is companion to Armitage et al. (2011) on caddisflies (Trichoptera).

A review of the Nearctic genus Prostoia (Ricker) (Plecoptera, Nemouridae), with the description of a new species and a surprising range extension for P. hallasi Kondratieff & Kirchner.

The Nearctic genus Prostoia (Plecoptera: Nemouridae) is reviewed. Prostoia ozarkensis sp. n.

Distribution patterns of Ohio stoneflies, with an emphasis on rare and uncommon species.

Presently, 102 stonefly species (Plecoptera) have been reported from Ohio. All 9 Nearctic families are represented. Over 90% of the fauna exhibit a combination of broad Nearctic-widespread, eastern Nearctic-widespread, Appalachian, and eastern Nearctic-unglaciated distributions.

A review of the Nearctic genus Zealeuctra Ricker (Plecoptera, Leuctridae), with the description of a new species from the Cumberland Plateau region of eastern North America.

The stonefly genus Zealeuctra (Plecoptera: Leuctridae) is endemic to the central and eastern Nearctic regions and is presently comprised of 10 species. Scanning electron microscopy (SEM) was used to examine and redescribe two important diagnostic features typically used to identify and define the adult male stage: the large, anteriorly-recurved epiproct and the medial cleft of the ninth abdominal tergite. SEM was also employed to depict the posteromedial portion of female 7(th) sternum.

Perlesta ephelida, a new Nearctic stonefly species (Plecoptera, Perlidae).

A new Nearctic species of Perlidae (Insecta, Plecoptera), Perlesta ephelidasp. n., is described from the male, female, and egg stages.

Ohio USA stoneflies (Insecta, Plecoptera): species richness estimation, distribution of functional niche traits, drainage affiliations, and relationships to other states.

Ohio is an eastern USA state that historically was >70% covered in upland and mixed coniferous forest; about 60% of it glaciated by the Wisconsinan glacial episode. Its stonefly fauna has been studied in piecemeal fashion until now. The assemblage of Ohio stoneflies was assessed from over 4,000 records accumulated from 18 institutions, new collections, and trusted literature sources.