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Arrival in Kazakhstan of Leptoglossus occidentalis (Hemiptera: Heteroptera: Coreidae); a North American invasive species expands 2,500 kilometres to the east

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Klapalekiana 54: 1-3 Abstract. The first record from Kazakhstan of the North American invasive coreid bug Leptoglossus occidentalis Heidemann, 1910 is given, from a city park in Almaty. This extends the known and predicted ranges of this rapidly spreading species more than 2500 kilometres eastwards.
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Klapalekiana, 54: 1–3, 2018
ISSN 1210-6100
Arrival in Kazakhstan of Leptoglossus occidentalis (Hemiptera: Heteroptera:
Coreidae); a North American invasive species expands 2,500 kilometres to the east
Vroubenka americká Leptoglossus occidentalis (Hemiptera: Heteroptera: Coreidae)
nalezena v Kazachstánu: severoamerický invazní druh
expandoval 2500 kilometrů na východ
Maxwell BARCLAY1) & Svetlana NIKOLAEVA1,2)
1) Natural History Museum, London SW7 5BD, UK; e-mail: m.barclay@nhm.ac.uk
2) Kazan Federal University, Kremlyovskaya ul. 18, Kazan 420000, Russia;
e-mail: s.nikolaeva@nhm.ac.uk
Kazakhstan, faunistics, invasive species, leaf-footed bug
Abstract. The rst record from Kazakhstan of the North American invasive coreid bug Leptoglossus occidentalis
Heidemann, 1910 is given, from a city park in Almaty. This extends the known and predicted ranges of this rapidly
spreading species more than 2500 kilometres eastwards.
The North American coreid bug Leptoglossus occidentalis Heidemann, 1910, known as
the ‘Western Conifer Seed Bug’, is native to the western United States and Canada. It was
rst reported in Europe in 1999 from Italy (Tescari 2001). It has since spread rapidly in all
directions, and is now known from most European countries, including Austria, Belgium,
Bosnia Herzegovina, Bulgaria, Croatia, Czech Republic, Denmark, France, Germany, Great
Britain, Greece, Hungary, Ireland, Italy, Kosovo, Luxembourg, Macedonia, Malta, Moldavia,
Montenegro, The Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slo-
venia, Spain and Switzerland (Dolling 2006, Aukema et al. 2013, Protić & Stanković 2015,
Kulijer 2016, Kulijer & Ibrahimi 2017). It has also been reported from Turkey (Fent & Kment
2011, Özgen et al. 2017), Lebanon (Nemer 2015), the Golan Heights (van der Heyden 2018),
Tunisia (Ben Jamâa et al. 2013), Morocco (Gapon 2015), and Ukraine and European Russia
(Gapon 2013, Gapon et al. 2016). It has also spread into the eastern part of North America,
and has recently been reported from Japan (Ishikawa & Kikuhara 2009) and Korea (Ahn et
al. 2013) and intercepted in China (Zhu 2010, Fent & Kment 2011), as well as records from
Chile (Faúndez et al. 2017). It is associated with a wide range of conifers, often the North
American Douglas r Pseudotsuga menziesii (Pinaceae). Adult bugs are usually noticed in
autumn, when they can enter buildings in search of hibernation sites. This habit, combined
with its very large size and striking appearance, makes this a frequently reported species, and
has allowed its rapid expansion to be fairly well documented.
Although there are numerous examples of adventitious old world species in North Ame-
rica, the reverse is more rarely true, and Leptoglossus occidentalis is one of few examples
of a Nearctic insect that has successfully colonised the Palaearctic. Its spread may have been
aided by the widespread sale and commercial planting of Douglas r, both as an ornamental
tree and a timber crop. Several other new world insects that have successfully established in
Published September 24, 2018
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the old world, e.g. Leptinotarsa decemlineata (Say,
1824), Diabrotica virgifera LeConte, 1868 (both
Chrysomelidae) and Stenopelmus runasus Gyllen-
hal, 1836 (Erirhinidae) have also been facilitated by
the abundance of a new world host plant, a crop in
the two former examples, an invasive weed in the
latter. For Leptoglossus, however, it is suggested (P.
Kment, pers. comm. 2018) that the adult is the most
important stage for dispersal. It is a powerful ier, as
demonstrated by records from offshore oil platforms
more than 300 kilometres from land (Endrestøl &
Hveding 2017), and may also be transported along
with goods in which adults are hibernating.
On 21st October 2017, around 15.30 PM, SVN
photographed an adult of Leptoglossus occidentalis
on the ground in the First President’s Park, Alma-
ty, Kazakhstan, at approximately 43°11’34.7”N
76°53’11.8”E, and sent the image to MVLB (Fig. 1).
First President’s Park is a large park in the centre of
the city, with extensive and recent ornamental tree
planting. It seems possible that the bug was attracted
toward street lighting from nearby conifers during the
previous night. There do not appear to be any previous records from Kazakhstan, and the
closest published records that we could nd, from Ossetia in Russia (Gapon 2016), are more
than 2,500 kilometres to the west. This record extends the known range of this species very
considerably into the centre of Asia, far into the continental climate zone. It is considerably
to the east of the extent of the potential range predicted by Zhu et al. (2014).
An internet search revealed that Vladimir Kazenas, of the Kazakhstan National Academy
of Science, has identied additional photographs of Leptoglossus occidentalis from Almaty,
posted on the photography website ‘MacroID.ru’ and taken at unreported locality in Almaty
on 20th and 21st October 2017. We made contact with Dr. Kazenas who encouraged us to
publish this occurrence independently. It seems likely that this species is already quite abun-
dant in Almaty.
The mobility of this species, combined with the transportation of conifers and of structures
used by hibernating adults, will no doubt lead to its continued spread. It seems likely that this
bug could encircle the entire Northern Hemisphere within a few years.
ACKNOWLEDGEMENTS. S. Nikolaeva’s work was partially funded by the subsidy of a Russian Government to
support the Program of Competitive Growth of Kazan Federal University among the World’s Leading Academic
Centers. We thank Vladimir Kazenas, Almaty, for discussion of this nd, and Petr Kment, Prague, for much im-
proving this paper.
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Fig. 1. Leptoglossus occidentalis in Almaty,
Kazakhstan.
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SHRNUTÍ
Uvádíme první nález severoamerické invazní vroubenky Leptoglossus occidentalis Heide-
mann, 1910 z Kazachstánu, z městského parku v centru města Almaty. Tento nález rozšiřuje
známý a předpokládaný areál tohoto druhu o více než 2500 km na východ.
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  • Endrestøl A
  • Hveding H
ENDRESTØL A. & HVEDING H. 2017: Leptoglossus occidentalis (Het. Coreidae) erobrer Europa. Insekt-Nytt 42: 1-21.
Hemiptera: Coreidae), a presumable recent invader to Japan)
ISHIKAWA T. & KIKUHARA Y. 2009: (Leptoglossus occidentalis Heidemann (Hemiptera: Coreidae), a presumable recent invader to Japan). Japanese Journal of Entomology (New Series) 12: 115-116 (in Japanese, English abstract).
  • Protić Lj
  • Stanković M
PROTIĆ Lj. & STANKOVIĆ M. 2015: New research on the fauna of Heteroptera in Bosnia-Herzegovina. Acta Entomologica Serbica 20: 13-28.