Annotated catalogue of Orthoptera (Orthoptera, Insecta) of Latvia

We present a revised list of Latvian species of Orthoptera and provide notes on their occurrence and present knowledge. New information on orthopteran observations from online databases, local unpublished studies, entomological collections, and our direct observations is combined, and a dataset of more than 1500 recent observations is provided. All historical synonyms used in the reviewed information sources are presented. As a result, an annotated list of 52 Orthoptera species is compiled, from which five newly reported species in Latvia are presented here for the first time together with distribution maps. In conclusion, the presence of 43 species of Orthoptera is confirmed in Latvia.