23 of them are from Nowosibirsk and 1 from 2024 is from Krasnojarsk. They were mainly identified by permico, with agreements by Taewoo Kim, Nikolaus Szucsich and me.
In Nowosibirsk they're restricted to a small part of the town in the southeast. They were likely introduced from East Asia via trade goods.
permico writes here (https://www.inaturalist.org/observations/139588556): F. vicaria was never reported before here, westernmost records are from Amur region, but interestingly F. auricularia also was not reported in the literature from Novosibirsk region, only from neighboring Omsk (to west) and Altai krai (Kamen-na-Obi). All Forficula males from this location called Akademgorodok (this is location of branch of Russian Academy of Sciences with many institutes) look much more similar to F. vicaria than F. auricularia. ... In this specimen https://www.inaturalist.org/observations/126316289 is clearly seen that 3rd and 4th antennal segments are almost equal and both are bit shorter than 5th like in F. vicaria (F. auricularia normally has 4th segment much shorter than 3rd, and 5th segment bit shorter than 3rd). ... I think there is adventive breeding population here of F. vicaria, brought from Russian Far East, where this species is frequently lives close and in houses. From another location of the same region there is male of F. auricularia with characteristic forceps and typical F. auricularia antennal segments: https://www.inaturalist.org/observations/138205027 And also there are here numerous reports of Forficula tomis, which is spreading to Baikal lake now, for example from here (...) I think all three Forficula species were introduced by humans into this region (Novosibirsk is the largest city in Asian part of Russia and it serves as transport hub for this part of the country).
The source for the morphological differences of the antennae between F. auricularia and F. vicaria, which can help with identifying females, is: Bey-Bienko GJ (1936) Faune de l'URSS. Insectes Dermaptères. Édition de l'Académie des sciences de l'URSS. Moscou, Leningrad
In Russia, Forficula vicaria is known for Russian Far East regions (Khabarovsk, Primorye, Amur regions), but has never been reported west to Baikal lake. On iNaturalist, there are numerous records since 2022 till now from particular district of Novosibirsk, called Akademgorodok (where most of scientific institutions of Siberian Branch of Russian Academy of Science located)
In this specimen https://www.inaturalist.org/observations/126316289 is clearly seen that 3rd and 4th antennal segments are almost equal and both are bit shorter than 5th like in F. vicaria or F. subaricularia according to Bey-Bienko 1936 (F. auricularia normally has 4th segment much shorter than 3rd, and 5th segment bit shorter than 3rd).
I think there is adventive breeding population here of F. vicaria, brought from Russian Far East, where this species is frequently lives close and in houses.
F. auricularia and F. tomis are also reported from the region on iNaturalist.
I have asked Oleg Kosterin (author of one observation of F. vicaria and curator of Odonata collection in Siberian Zoological Museum to contact Vladimir Dubatolov, who is the curator of Dermaptera collection in the museum: http://szmn.eco.nsc.ru/Insecta/Dermapt.htm
Ref. Bey-Bienko, G. (1936) Faune de l'URSS. Insectes Dermaptères. Édition de l'Académie des sciences de l'URSS. Moscou, Leningrad [in Russian; with summary and key in English], 239 pp. F. vicaria description on page 149. Key to related Forfcula species in English on page 227. Fauna Sinica: Insecta, Volume 35: Dermaptera. Science Press, Beijing, 420 p. [in Chinese; with key in English]. F. vicaria description on page 329.
Also F. vicaria might be present in Krasnoyarsk city (South of Central Siberia, Russia): There is also dead specimen of F. vicaria from Krasnoyarsk and several females which do resemble F. vicaria females by their antennal structure. This specimen has F. vicaria type forceps: https://www.inaturalist.org/observations/250263786 (dead male) In this female antennae are of F. vicaria/F. subauricularia type: https://www.inaturalist.org/observations/127837204
Fri Nov 29, 2024 1:22 pm (Last edited: Fri Nov 29, 2024 1:28 pm)
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