Seasonal patterns of the red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae) captured using pheromone traps placed outside residential buildings: a three-year survey in Ibaraki Prefecture, Japan

Abstract

I investigated the seasonal patterns of the red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae) by capturing them in pheromone traps placed outside residential buildings in Toride and Tsukuba, Ibaraki Prefecture, Japan. The survey was conducted over three years (2014 – 2016). The adult beetles were captured from May to November, peaking in June. In all of the one-year periods, the peak in Tsukuba was less distinct than that in Toride. The total numbers of beetles caught per year were 66, 56, and 144 in Toride, and 9, 7, and 11 in Tsukuba.