Pristiphora confusa 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: 68

publication ID

http://dx.doi.org/10.3897/jhr.59.12565

publication LSID

lsid:zoobank.org:pub:598C5BB3-2136-4D91-B522-FA14D8874A52

persistent identifier

http://treatment.plazi.org/id/06887F44-4127-BFE1-10A9-6CC27475AE63

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Pristiphora confusa Lindqvist, 1955
status

 

Pristiphora confusa Lindqvist, 1955  Figs 196, 268

Pristiphora confusa  Lindqvist, 1955: 40-41. Holotype ♀ (http://id.luomus.fi/GL.5209) in MZH, examined. Type locality: Sipoo [Sibbo], Uusimaa, Finland.

Similar species.

Based on the external morphology, the most similar species are P. albitibia  , P. armata  , P. leucopus  , P. opaca  , P. pusilla  , P. sootryeni  , and P. subopaca  . Pristiphora confusa  is best distinguished by the structure of the male penis valve (Fig. 268). Unfortunately, it is rather difficult to distinguish females from P. armata  , P. leucopus  , P. opaca  , and P. subopaca  , as the differences in lancets are small (Figs 192-193, 196-198). The apical serrulae are more protruding and shorter than in P. opaca  and P. subopaca  (Figs 196-198). Pristiphora opaca  also has a fold at the base of the tangium of the lancet (Fig. 197) that is lacking in other species in the ruficornis  group. Pristiphora opaca  tends also to have a smaller subapical tooth than P. confusa  (Figs 22-23). The pterostigma of P. confusa  is apically brown and basally dark brown, like in P. opaca  (Fig. 40), but unlike in P. subopaca  , in which it is uniformly yellow (Fig. 39). In P. armata  and P. leucopus  , the pterostigma is usually dark brown (Fig. 42), but sometimes the pterostigma can have more or less the same colour as in P. confusa  . In this case, small differences in the lancet can help distinguish P. confusa  from P. armata  and P. leucopus  , as setae tend to be more distinct in P. confusa  (Figs 192-193, 196). Among the males, the most similar penis valves are of P. subopaca  . The valvispina in P. confusa  is barely bent and the pseudoceps is narrower compared to P. subopaca  (Figs 268-269).

Genetic data.

Based on COI barcode sequences, belongs to the same BIN cluster (BOLD:AAG3568) as P. aphantoneura  , P. bifida  , P. luteipes  , P. opaca  , P. pusilla  , P. staudingeri  , and P. subopaca  (Fig. 4). Maximum distance within the BIN is 3.33% and minimum between species distance is 0.00%. The nearest neighbour to BOLD:AAG3568, diverging by minimum of 2.76%, is BOLD:AAQ2302 ( P. armata  and P. leucopus  ). Based on nuclear data, maximum within species divergence is 0.7% (based on two specimens and both genes combined) and the nearest neighbour is 0.0% different ( P. bifida  or P. luteipes  , only TPI). If TPI introns are included, the nearest neighbour is still 0.0% different ( P. bifida  ).

Host plants.

Salix caprea  L. ( Kangas 1985), Salix fragilis  L. ( Benson 1958), Salix phylicifolia  L. ( Benson 1958).

Distribution and material examined.

Palaearctic. Specimens studied are from Estonia, Finland, France, Germany, Russia (Primorsky Krai), Sweden, and Switzerland.