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      New records of exotic crickets in Europe: Homoeogryllus species (Orthoptera: Gryllidea: Phalangopsidae)

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      Journal of Orthoptera Research
      Pensoft Publishers

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          Abstract

          This short note lists new records of exotic crickets belonging to the genus Homoeogryllus (Orthoptera: Gryllidea: Phalangopsidae) in Europe (Poland and Belgium) and discusses the most probable scenarios of their arrival from tropical regions. Photographs and stridulation spectrograms of these crickets are provided. The report concludes that handling terminals and warehouses with tropical plants are the most common sites in Europe where exotic species of different taxa are recorded. The species Homoeogryllus longicornis (Walker, 1869) is also reclassified to the genus Meloimorpha Walker, 1870.

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          Too big to be noticed: cryptic invasion of Asian camel crickets in North American houses

          Despite the rapid expansion of the built environment, we know little about the biology of species living in human-constructed habitats. Camel crickets (Rhaphidophoridae) are commonly observed in North American houses and include a range of native taxa as well as the Asian Diestrammena asynamora (Adelung), a species occasionally reported from houses though considered to be established only in greenhouses. We launched a continental-scale citizen science campaign to better understand the relative distributions and frequency of native and nonnative camel crickets in human homes across North America. Participants contributed survey data about the presence or absence of camel crickets in homes, as well as photographs and specimens of camel crickets allowing us to identify the major genera and/or species in and around houses. Together, these data offer insight into the geographical distribution of camel crickets as a presence in homes, as well as the relative frequency and distribution of native and nonnative camel crickets encountered in houses. In so doing, we show that the exotic Diestrammena asynamora not only has become a common presence in eastern houses, but is found in these environments far more frequently than native camel crickets. Supplemental pitfall trapping along transects in 10 urban yards in Raleigh, NC revealed that D. asynamora can be extremely abundant locally around some homes, with as many as 52 individuals collected from pitfalls in a single yard over two days of sampling. The number of D. asynamora individuals present in a trap was negatively correlated with the trap’s distance from a house, suggesting that these insects may be preferentially associated with houses but also are present outside. In addition, we report the establishment in the northeastern United States of a second exotic species, putatively Diestrammena japanica Blatchley, which was previously undocumented in the literature. Our results offer new insight into the relative frequency and distribution of camel crickets living in human homes, and emphasize the importance of the built environment as habitat for two little-known invading species of Orthoptera.
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            Catalogue of alien animal species in the Czech Republic

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              Phalangopsidae crickets from the Indian Region (Orthoptera, Grylloidea), with the descriptions of new taxa, diagnoses for genera, and a key to Indian genera

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                Author and article information

                Contributors
                (View ORCID Profile)
                Journal
                Journal of Orthoptera Research
                JOR
                Pensoft Publishers
                1937-2426
                1082-6467
                September 14 2020
                September 14 2020
                : 29
                : 2
                : 121-125
                Article
                10.3897/jor.29.50387
                98195b5e-ea3a-486b-940a-a3936aa4afd7
                © 2020

                http://creativecommons.org/licenses/by/4.0/

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