Discovery of an exotic grasshopper atractomorpha sinensis sinensis bolivar, 1905 from Shikoku, Japan through citizen science monitoring.
An exotic grasshopper Arractomorpha sinensis sinensis Bolivar. 1905 was first collected from Japan mainland in 2008. and its invasion was detected in 2012. After that, this species has continuously been spreading in Kinki region, central Japan. Here, we present the first specimen-based record of this species from Shikoku Island detected through a field survey incorporating With citizens.