Pristiphora parva (Hartig, 1837)

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 : 55-56

Pristiphora parva (Hartig, 1837) Figs 167, 295

Nematus parvus Hartig, 1837: 208-210. Lectotype ♂ (GBIF-GISHym3376; designated by Beneš et al. 1981) in ZSM, examined. Type locality: Germany.

Nematus nigricornis Zaddach in Brischke, 1883b: 146-147. Primary homonym of Nematus nigricornis Serville, 1823 [= Euura nigricornis (Serville, 1823)]. Holotype ♂ possibly destroyed ( Blank and Taeger 1998). Type locality: Gacko [Dammhof], West Pomeranian Voivodeship, Poland. Synonymised with Sharliphora parva by Beneš et al. (1981).

Nematus germanicus Dalla Torre, 1894: 227, 7. Replacement name for Nematus nigricornis Zaddach, 1883.

Lygaeonematus ambiguus var. flavater Enslin, 1916: 503-504. Lectotype ♂ (DEI-GISHym31699; here designated) in ZSM, examined. Type locality: Gräfenberg, Bavaria, Germany.

Similar species.

Most similar species is P. nigella . Pristiphora parva tends to be paler than P. nigella , and in females the valvula 3 is slightly longer in P. parva than in P. nigella (see the Key). Penis valves seem to show more reliable differences: in P. parva , the paravalva narrows distinctly more gradually than in P. nigella (Figs 294-295).

Genetic data.

Based on COI barcode sequences, P. parva belongs to its own BIN cluster (BOLD:ABV9415) (Fig. 5). Maximum distance within the BIN is 0.32%. The nearest neighbour to BOLD:ABV9415, diverging by a minimum of 2.26%, is BOLD:AAF5120 ( P. amphibola and P. nigella ). Based on nuclear data, within species divergence is 0.0% (based on two specimens and both genes combined) and the nearest neighbour is 0.3% different ( P. nigella , only TPI).

Host plants.

Picea abies (L.) Karsten ( Kangas 1985).

Distribution and material examined.

West Palaearctic. Specimens studied are from Estonia, Finland, Germany, and Sweden.