Pristiphora insularis Rohwer, 1910,

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: 88-89

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Pristiphora insularis Rohwer, 1910


Pristiphora insularis Rohwer, 1910  Figs 86-87, 135, 254

Pristiphora insularis  Rohwer, 1910a: 106. Holotype ♀ (USNMENT00779086) in USNM, not examined. Type locality: Japan.

Amauronematus amelanchieris  Takeuchi, 1922: 289-293. Holotype ♀ in NSMT, not examined. Type locality: Gifu, Japan. Synonymised with P. insularis  by Haris (2006b).

Pristiphora kamtchatica  Malaise, 1931: 56-57. Lectotype ♀ in NHRS (designated by Koch 1989), examined. Type locality: Kamchatka Krai, Russia.

Pristiphora luteiventris  Koch, 1989: 145-148. Holotype ♀ (GBIF-GISHym2821) in ZMHB, not examined. Type locality: Niederlahnstein, Lahnstein, Rhineland-Palatinate, Germany. Synonymised with P. kamtchatica  by Liston (1995).

Similar species.

Because of the shape of valvula 3, females might be confused most often with the P. leucopodia  group. In addition to small differences in the valvula 3 (see the Key and Figs 84-87), species in the P. leucopodia  group lack a velum (Figs 33), which is present in P. insularis  (Fig. 34). Males are best recognised by examining penis valves (see the Key).

Genetic data.

Based on COI barcode sequences, specimens are divided between two BIN clusters (BOLD:AAU3333 and BOLD:AAX8162), which are the closest neighbours of each other, with 3.79% difference (Fig. 5). Based on nuclear data (one specimen and TPI), the nearest neighbour is 4.3% different ( P. pallidiventris  ).

Host plants.

Amelanchier asiatica  (Siebold & Zucc.) Endl. ex Walp., Chaenomeles japonica  (Thunb.) Lindl. ex Spach ( Takeuchi 1922, as Amauronematus amelanchieris  ), Rosa  sp. ( Chambers 1961, as P. paedida  ), R. majalis  J. Herrm. ( Kangas 1985, as P. paedida  , ex ovo rearing experiments by VV), R. pimpinellifolia  L. ( Dvorak et al. 2008), Rosa onoei  Makino ( Okutani 1970, as P. paedidius  [sic!]).

Rearing notes.

Ovipositing experiment no. 12/1977: Finland, South Häme, Hämeenlinna, Aulanko. On 6-7.VI.1977 one captured female laid eggs into teeth (leaf edges) of unopened leaves of Rosa majalis  . Larvae hatched on 9-10.VI.1977, four larval instars were observed. Their development was rapid and on 22.VI.1977 prepupae were seen. No extra moult after feeding.

Distribution and material examined.

Palaearctic, Nearctic. Specimens studied are from Finland, France, Germany, Greece, Spain, and Sweden.














Pristiphora insularis Rohwer, 1910

Prous, Marko, Kramp, Katja & Liston 1, Veli VikbergAndrew 2017

Amauronematus amelanchieris

Konow 1890