Get access

Seasonal prevalence of blowflies and flesh flies in Osaka City


Hideharu Numata, Department of Biology and Geosciences, Graduate School of Science, Osaka City University, Osaka, 558-8585 Japan. Email:


Blowflies (Diptera: Calliphoridae) and flesh flies (Sarcophagidae) were collected using a bait trap in Osaka City between April 1998 and June 1999. Seven species from four Calliphoridae genera and three species from one Sarcophagidae genus were captured. Seasonal fluctuations of captured adults for most blowflies showed a bimodal pattern, having peaks in spring and autumn, whereas all flesh flies were captured between spring and autumn. The sex ratios of captured flies were mostly biased toward females.