Pseudodineura clematidis ( Hering, 1932 )

Liston, Andrew, Prous, Marko & Vårdal, Hege, 2019, The West Palaearctic Pseudodineura and Endophytus species (Hymenoptera, Tenthredinidae), Zootaxa 4614 (3), pp. 511-528 : 518

Pseudodineura clematidis ( Hering, 1932)

Pelmatopus clematidis Hering, 1932: 157–158 . Syntypes ♀ ♂. Lectotype ♀ (GBIF-GISHym2809; images: https://doi. org/10.6084/m9.figshare.7880402) in ZMHB, here designated. Type locality: Switzerland, Zernez. Paralectotypes: see un- der Specimens examined.

Pseudodineura clematidis: Hering 1936: 161 .

Notes: Hering (1932) selected one male and one female as “Typus”. Other specimens belonging to the type series are labelled “ Paratypen ”. The type series is therefore considered to have been comprised of syntypes. The lectotype designation agrees with Hering’s intention.

Additional description. Body length: ♀ 3.5–5.5mm, ♂ 4.0–5.0mm. Body colour varies considerably. Speci- mens in the type series are rather pale, with the upper mesepisternum pale, but the reared specimens from Austria (DEIGisHym31840 to 31843) are very dark, and thus not distinguishable in coloration from clematidisrectae . Two reared males from Austria even show slight infuscation of small parts of the metafemur. Lancet: Fig. 29. Male: penis valve; Fig. 25 .

Total number of specimens examined: 9♀, 7♂.

Similar species. Female Pseudodineura clematidis resemble clematidisrectae very closely in all but two characters which we examined: see key. Both sexes of clematidis usually have the upper mesepisternum clearly brown, with the lower part black, while in clematidisrectae the mesepisternum is usually completely black, or upper part at most obscurely paler, but exceptions occur in both taxa. Slight differences can be seen between the illustrated lancets of these two species (Figs 28, 29). The lamnium of clematidis is longer in proportion to its height, and the shape of the tangium is different. We cannot state whether these are constant differences, which might enable reliable separation of the species. In the rather few male specimens available, the antenna of clematidis is as long as the fore wing costa and stigma, whereas no longer than the fore wing costa in clematidisrectae . Their penis valves appear to be indistinguishable.

Life history. Host plants: Clematis alpina ( Hering 1932, Altenhofer & Pschorn-Walcher 2006).

Distribution. Central Europe: the Alps, as well as the Tatra and Pieniny Mts in Poland ( Taeger et al. 2006, Michalska et al. 2010), and Urals ( Sundukov 2017). According to Zhelochovtsev & Zinovjev (1995) possibly also in eastern Siberia. Occurrence in Sweden: published records; none. Material examined: no Swedish specimens.

Specimens examined. Paralectotypes: all with the same data: Zernez ( Schweiz), Mine Clematis alpina , 28.4.1930, Z. Nr. 3462, leg. W. Hopp. 1♀ 1♂ in ZMHB, 1♀ in ZSM, 1♀ 1♂ in NHRS .

Other material: Austria: Salzburg: 1♀ (DEIGisHym31812), 1♂ (DEIGisHym31813), Obertauern [presumably Radstätter Tauernpass: see Pschorn-Walcher & Altenhofer 2000], Clematis alpina , coll. 10.07.1997, emerged respectively 26.03.1998 / 11.03.1999, leg. E. Altenhofer ( SDEI). Steiermark: 4♀ (including DEIGisHym88876, 31840, 31841), 4♂ (including DEIGisHym31842, 31843), NP Gesäuse, Hartelsgraben , approx. 1000m a.s.l., Clematis alpina , coll. 15.09.2016 , emerged 06– 09.06.2018, leg. E. Altenhofer ( SDEI) .

Figures

FIGURES 21–26. Pseudodineura species, penis valves; 21, enslini (15347) vl = ventroapical lobe. 22, parvula (31894) df = distal filament. 23, fuscula (31891). 24, clematidisrectae (31889). 25, clematidis (31843). 26, mentiens (31893).