On the taxonomy of Heterarthrus (Hymenoptera, Tenthredinidae), with a review of the West Palaearctic species

By

Liston, Andrew, 1978-
Mutanen, Marko
Viitasaari, Matti

Type

Article

Date of Publication

2019

Original Publication

Journal of Hymenoptera research

Volume

72

Pages

83--126

Subjects

identification key , leaf-miners , new species , new synonyms , Sawflies

Contributed by

Pensoft Publishers

Language

English

Published by

Washington, D.C International Society of Hymenopterists

Identifiers

DOI: https://doi.org/10.3897/jhr.72.39339

 

Abstract

The sawfly genusHeterarthrusis naturally distributed in the Palaearctic, with a single described Oriental species. Their larvae mine in the leaves of trees and shrubs of Salicaceae, Betulaceae, and Sapindaceae (Acer). We here recognise twelve West Palaearctic species as valid, with the status of two additional nominal species group taxa in need of further study:fruticicolumErmolenko, andsmithiErmolenko. A key to adults of the species occurring in the West Palaearctic is presented. Two new species are described:Heterarthus vikbergiListon, Mutanen & Viitasaari,sp. nov.from females and males reared from leaf-mines inPopulus balsamiferacollected in eastern Finland, andHeterarthrus fioraListon,sp. nov.from females reared fromAcer pseudoplatanus. The latter is a widespread European species, previously misidentified asHeterarthrus aceris(Kaltenbach, 1856). New junior subjective synonyms arePhyllotoma acerisKaltenbach, 1856 ofHeterarthrus leucomela(Klug, 1818),H. aihinoensisHaris, 2006 ofH. kamtchaticus(Malaise, 1931) sp. rev., andH. imbrosensisSchedl, 1981 ofH. wuestneii(Konow, 1905). Lectotypes are designated forPhyllotoma flavicollisGussakovskij, 1947,P. kamtchaticaMalaise, 1931, andTenthredo ochropodaKlug, 1818.