A new stonefly species (Plecoptera, Perlidae) from the Interior Highlands USA, with morphological and molecular comparison to other congeneric species

By

South, Eric J.
DeWalt, R. Edward
Davis, Mark
Thomas, M. Jared

Type

Article

Date of Publication

2019

Original Publication

ZooKeys

Volume

858

Pages

45-70

Subjects

Arkansas , DeWalt , Nearctic , new species , Oklahoma , Perlesta sublobata South , Stonefly

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.858.33818

 

Abstract

Thirty-one species of Nearctic Perlesta Banks, 1906 (Plecoptera: Perlidae) are recognized. A new species is described from western Arkansas and eastern Oklahoma, USA, Perlestasublobata South & DeWalt, sp. nov., from the adult male, adult female, and egg. Perlestasublobata males are differentiated from other congeners by a combination of a prominent ventral caecum and a distinct dorsal extension of the lateral sclerites of the aedeagus. A preliminary molecular phylogenetic hypothesis is proposed for Perlesta based on 17 congeners and three outgroup taxa using partial mitochondrial cytochrome c oxidase subunit I sequence data. Illustrations, stereomicroscope images, and scanning electron micrographs support the description and comparison to other Perlesta.