Pristiphora sootryeni Lindqvist, 1955

Prous, Marko, Kramp, Katja & Liston 1, Veli VikbergAndrew, 2017, North-Western Palaearctic species of Pristiphora (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 59, pp. 1-190 : 75

Pristiphora sootryeni Lindqvist, 1955 Figs 190

Pristiphora sootryeni Lindqvist, 1955b: 46. Holotype ♀ in TROM, not examined. Type locality: Småströmmen, Finnmark, Norway.

Pristiphora listoni Lacourt, 1998: 129-130, syn. n. Holotype ♂ (DEI-GISHym31733) in CTN, examined. Type locality: Saint-Véran, Provence-Alpes-Côte d’Azur, France.

Similar species.

Most similar species are P. albitibia and P. astragali . Females of P. sootryeni are best distinguished by the structure of the lancet (Fig. 190), which has long apical serrulae (shorter in P. albitibia and P. astragali ) and numerous setae (fewer in P. astragali ). Externally, males and females tend to have a paler pterostigma (uniformly yellow or brown) than P. albitibia (basally dark brown and apically brown) and smoother mesepisternum than P. astragali (usually strongly matt). Males of P. sootryeni (only the holotype of P. listoni Lacourt is known) seem to have a somewhat more elongate pseudoceps (http://dx.doi.org/10.6084/m9.figshare.4690174) of penis valve than in P. albitibia (Fig. 273). The single paratype female of listoni Lacourt that was collected at the same time and place ( Lacourt 1998) as the holotype male has the same lancet as P. sootryeni (Fig. 190) and externally seems to have only smoother mesepisternum (almost completely smooth) than specimens studied from Finland. Because the sculpture of mesepisternum commonly varies within species, it is not sufficient to separate listoni Lacourt from sootryeni Lindqvist and therefore we synonymise the former with the latter.

Genetic data.

Based on a COI barcode sequence of one confidently identified specimen from Kuusamo (Finland; DEI-GISHym80036), it belongs to the same BIN cluster as P. astragali (BOLD:AAL8292), which in the BOLD database includes two other unidentified specimens from Manitoba, Canada (Fig. 1 in Prous et al. 2016). Maximum distance within the BIN is 1.01% and minimum between species distance is possibly 0.00%. The nearest neighbour to BOLD:AAL8292, diverging by minimum of 2.40%, is BOLD:AAL8277 ( P. astragali ). No nuclear DNA data available.

Host plants.

Oxytropis campestris (L.) DC. ( Lindqvist 1973, Vikberg 2006).

Rearing notes.

See Vikberg (2006).

Distribution and material examined.

West Palaearctic. Specimens studied are from Finland and France.