Pristiphora subbifida (Thomson, 1871)

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 : 41-42

Pristiphora subbifida (Thomson, 1871) Figs 28, 38, 185

Nematus subbifidus Thomson, 1871: 105. Lectotype ♀ in MZLU (designated by Lindqvist 1954), examined. Type locality: Östergöthland, Sweden.

Similar species.

The most similar species is P. depressa , which has a black metapostnotum (at least partly pale in P. subbifida : Fig. 38) and head in dorsal view with small pale spots (extensively pale in P. subbifida ). See Liston and Späth (2008) and Liston et al. (2013) for more details. Male unknown.

Genetic data.

Based on COI barcode sequences, P. subbifida forms its own BIN cluster (BOLD:AAU8503) (Fig. 3). Maximum distance within the BIN is 2.29%. The nearest neighbour to BOLD:AAU8503, diverging by a minimum of 6.26%, is BOLD:ABU7027 ( P. depressa ). Based on nuclear data (one specimen and both genes combined), the nearest neighbour is 2.1% different ( P. tetrica ).

Host plants.

Acer campestre L. ( Liston 1996, Liston et al. 2013). No other Acer species has been unequivocally recorded as a host, because of previous confusion of P. subbifida with other closely related species.

Distribution and material examined.

West Palaearctic, (Nearctic, see Smith 2016). Specimens studied are from Germany, Greece, and Sweden.