Pristiphora abbreviata (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 : 80-82

Pristiphora abbreviata (Hartig, 1837) Figs 66-67, 128, 252

Nematus abbreviatus Hartig, 1837: 205. Lectotype ♀ (GBIF-GISHym3181; here designated) in ZSM, examined. Type locality: Germany.

Gymnonychus californicus Marlatt, 1896: 122-123. 11 possible ♀ syntypes (USNMENT00778445) in USNM, not examined. Type locality: Brockport, New York and Sacramento, California, United States. Synonymised with P. abbreviata by Benson (1958).

Similar species.

Most easily confused with P. monogyniae , from which it differs by having pale pronotal angles (black in P. monogyniae ), black clypeus (pale in P. monogyniae ), and the valvula 3 with a distinct dorsoapical projection (absent in P. monogyniae ) (Figs 66-67, 71-72). Males, which are extremely rare (we have seen one), are best recognised by examining penis valves (Figs 252, 256). See the Key for more details.

Genetic data.

Based on COI barcode sequences (only one specimen in BOLD), it forms its own BIN cluster (BOLD:ACV9937). The nearest neighbour (BOLD:AAG3540, P. melanocarpa ) is 8.43% different. Based on nuclear data (one specimen; NaK), the nearest neighbour is 4.2% different (unidentified specimen DEI-GISHym84983 belonging to the ruficornis group).

Host plants.

Pyrus communis L. ( Zocchi 1949, as Micronematus abbreviatus ) and Pyrus spinosa Forsk. ( Schedl and Ritzau 1995).

Distribution and material examined.

West Palaearctic, (Nearctic). Specimens studied are from Germany and Greece.