Abstract
We investigated the flight speed and flight duration of Riptortus pedestris (Fabricius) (Heteroptera: Alydidae) and Leptocorisa chinensis Dallas (Heteroptera: Alydidae) to estimate their flight distance by measuring the speed of stinkbugs flying towards a window in a room with a speed sensor. R. pedestris flew faster than L. chinensis although there was no difference in speed between sexes. R. pedestris flew fastest at 29°C and slowest at 19°C; however, the flight speed of L. chinensis was not significantly different among 29, 25, and 19°C. Flight duration was measured using a flight mill for 22 hours under L13 : D11 at 25°C. The results showed that L. chinensis flew significantly longer than R. pedestris, and there was no difference between the sexes. From the product of flight speed and flight duration, the estimated R. pedestris flight distance was 3.1–4.6 km day−1, and L. chinensis was 24.2–29.4 km. Flight distances calculated using only the flight mill were shorter than with a speed sensor.
