Pristiphora compressa (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: 29-30

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Pristiphora compressa (Hartig, 1837)


Pristiphora compressa (Hartig, 1837)  Figs 158-159, 284

Nematus compressus  Hartig, 1837: 213-214. Lectotype ♀ (GBIF-GISHym3223; here designated) in ZSM, examined. Type locality: Harz, Germany.

Similar species.

The most similar species are P. abietina  and P. decipiens  . Pristiphora abietina  is on average smaller (4.0-6.5 vs 6.0-9.0 mm) and has a posteriorly sinuate hypopygium (excised in P. compressa  ). Pristiphora decipiens  tends to be paler (with extensively pale mesepisternum, while in P. compressa  it is usually black). Lancets and penis valves of these species can also be distinguished (see the Key).

Genetic data.

Based on COI barcode sequences, P. compressa  belongs to the same BIN cluster (BOLD:AAK9450) as P. abietina  , P. decipiens  , P. gerula  , P. pseudodecipiens  , P. saxesenii  , and possibly P. robusta  (Fig. 5). Maximum distance within the BIN is 2.18% and minimum between species distance is 0.00%. The nearest neighbour to BOLD:AAK9450, diverging by a minimum of 3.92%, is BOLD:ACO1401 ( P. euxantha  ). Based on nuclear data, within species divergence is 0.0% (based on three specimens and NaK or TPI) and the nearest neighbour is 1.3% different ( P. abietina  , only NaK).

Host plants.

Picea  sp. ( Beneš and Krístek 1979), P. pungens  Engelm. ( Kula et al. 2016).

Distribution and material examined.

Palaearctic. Specimens studied are from Germany, Slovakia, and Sweden.