A photograph showing differences between a giant female (A, TBL = 84.0 mm, head width = 11.7 mm) and an average-sized female (B, TBL = 65.0 mm, head width = 8.8 mm) of Tsushima Island. Relationship between maximum body weight and head width of Locusta migratoria female adults collected on Tsushima Island in 2008 and reared individually at 30°C and LD 12:12h (C). The maximum body weight for a giant individual with the head width of 11.3 mm was 8.91 g, whereas it was 4.47 g (range, 3.09–5.49 g, N = 33) for the other individuals.