Largusoperla
Creators: name: Chen, Zhi-Teng
name: Wang, Bo
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Largusoperla

description: Key to males of Largusoperla species (L. sp. is excluded)   
1. Paraprocts distinctly asymmetrical, one paraproct larger, other smaller............................................ 2  
-. Paraprocts symmetrical, shape of paraprocts similar.......................................................... 4  
 2. Paraprocts weakly sclerotized, subtriangular with sharp apex; left paraproct widened at mid-length, right paraproct constricted at mid-length............................................................................. L. difformitatem   
-. Paraprocts partially sclerotized, apex blunt.................................................................. 3  
 3. Paraproct finger-shaped and thick, with banded color pattern; left paraproct longer than the right paraproct........ L. dewalti   
 -. Paraproct subtriangular, without banded pattern, subapically with creases; left paraproct smaller than the right paraproct.................................................................................................. L. crassus   
 4. Paraprocts weakly sclerotized, almost hyaline, laterally thickened.......................................... L. flata   
-. Paraproct partially or completely sclerotized, not hyaline...................................................... 5  
 5. Paraproct subapically constricted to a needle-like spine................................................... L. acus   
-. Paraproct without needle-like apical spine.................................................................. 6  
 6. Paraproct with an incurved apical hook, width almost equals the length............................... L. charliewattsi   
-. Paraproct without an incurved apical hook, width usually shorter than the length................................... 7  
 7. Apical segment of maxillary palp elongated; RP of forewing with three branches; paraproct with concave inner margin and convex outer margin, apex obtuse with a small triangle.................................................. L. borisi   
-. Apical segment of maxillary palp apparently shortened or subequal to basal segments; RP of forewing with two or four branches............................................................................................. 8  
 8. CuA of forewing with four branches; M partially fused with RP and CuA; apex of paraproct obtuse......... L. reni sp. nov.   
-. CuA of forewing with three branches; M not fused with RP or CuA.............................................. 9  
 9. Apical segment of maxillary palp subequal; RP of forewing with two branches; paraproct strongly out-curved, with convex inner margin and concave outer margin, apex sharp..................................................... L. arcus   
 -. Apical segment of maxillary palp shortened; RP of forewing with four branches; paraproct points backward, apex blunt.............................................................................................. L. billwymani
description: Published as part of Chen, Zhi-Teng & Wang, Bo, 2019, Review of the fossil genus Largusoperla (Plecoptera: Perlidae): Annotated checklist, taxonomic identification, and description of a new species, pp. 281-291 in Zootaxa 4565 (2) on pages 290-291, DOI: 10.11646/zootaxa.4565.2.12, http://zenodo.org/record/2589796