DOI: 10.5061/dryad.tj4t0
title: Data from: North-Western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae)

description: The Pristiphora ruficornis group, defined here based on the structure of
 the penis valve and the genetic data, includes morphologically and
 genetically highly similar species that remain taxonomically challenging.
 Study of most of the relevant type material, examination of female saws
 and male genitalia, some rearing experiments, and genetic data enabled us
 to solve most of the taxonomic problems involving northern European taxa.
 As a result, 17 species are recognised in northern Europe. The following
 synonymies are proposed: Pristiphora aterrima Lindqvist, 1977, syn. n. is
 synonymised with P. albitibia (Costa, 1859), P. brunniapex Lindqvist,
 1960, syn. n. and P. coniceps Lindqvist, 1955, syn. n. both with P.
 subopaca Lindqvist, 1955, Nematus vitreipennis Eversmann in Kawall, 1864,
 syn. n. (nomen oblitum) with P. leucopus (Hellén, 1948) (nomen protectum),
 and Nematus (Pristiphora) ruficornis var. integer Hellén, 1948, syn. n.
 with P. ruficornis (Olivier, 1811). Lectotypes are designated for the
 following taxa: Nematus appendiculatus Hartig, 1837, Nematus cathoraticus
 Förster, 1854, Nematus (Pristiphora) bifidus Hellén, 1948, Nematus
 frigidus Boheman, 1865, Pristiphora adelungi Konow, 1902, Nematus
 vitreipennis Eversmann in Kawall, 1864, Nematus melanocarpus Hartig, 1840,
 Nematus wuestneii Stein, 1885, Pristiphora pusilla Malaise, 1921, and
 Nematus fraxini Hartig, 1837. An illustrated electronic key made with
 Lucid and a traditional dichotomous key are provided to facilitate
 identification of the species. In addition we report the first occurrence
 of distinctly asymmetrical penis valves in Pristiphora (in P. pusilla), a
 condition rarely observed in Hymenoptera.
description: Lucid identification
 keyThe zip file contains
 all the Lucid data files. The electronic identification key for the
 species of ruficornis-group was prepared in Lucid 3.5 Builder
 (http://www.lucidcentral.org/). If the licence for Lucid 3.5 is lacking,
 the free version of Lucid 3.3 can be used to run the key. Only species of
 the ruficornis group are included in the key, but there are additional
 characters that do not vary within the group, but which can be used to
 exclude other Pristiphora species. In case of ambiguities or polymorphisms
 in character states, we conservatively coded these to multiple states. The
 key contains 37 morphological features with 94 character states and 43
 entities (species and groups, 20 for males and 23 for females). The first
 choice given in the key is between female and male, one of which has to be
 chosen to see all other characters. After that, characters can be chosen
 freely or one can use ‘Best’ and ‘Next Best’ tools in Lucid that suggests
 the most efficient sequence of characters for
 identification.ruficornis_key.zipAlignment files and treesThe zip file contains the alignment files of COI and TPI genes, which were used to reconstruct phylogeny using PhyML 3.0.1, and the resulting tree and other output files.ruficornis_phyl.zipStudied specimensThe excel file includes collection data of the studied specimens and GenBank accession numbers.Pristiphora_ruficornis_gr_specimens_and_seq.xls