Greenhouses in botanical or zoological gardens are home to dozens of species of invertebrates that were introduced alongside plants or potting soil. Our study presents the description of an alien species of earwig, Euborellia arcanum sp. nov., found in tropical greenhouses in Leipzig and Potsdam (Germany) and in Vienna (Austria), including information about its biology in breeding culture. The species was most likely introduced into Europe by way of plants or plant matter from Florida, but the region of its natural habitat is unknown. The sequence of the mitochondrial gene cytochrome c oxidase subunit I (COI) was also evaluated and added to GenBank as a DNA barcode for further identification.
Twenty-four species are cited for the first time from French Guiana and five species are only mentioned from bibliographical records. Three misidentified records are discarded. Species diversity in French Guiana is similar to neighboring countries and a few additional species will probably be found. Some poorly recorded species have been found, such as Cosmogerax araguensis
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