本文报道了1994年1月至12月防城港蜚蠊种群密度及季节消长情况。全年共布放诱饵瓶2400只,有效瓶2328只,捕获蜚蠊355只,总密度为0.15只/瓶。共发现蜚蠊2属4种,以美洲大蠊为优势种,密度以夏秋季较高,冬春季较低,5、6月份为高峰期。月平均密度与该地区月平均气温呈正相关。 This article reports the population density and seasonal fluctuation of cockroaches in Fangchenggang from January to December 1994. A total of 2,400 decoy bottles were placed throughout the year, with 2328 valid bottles and 355 cockroaches with a total density of 0.15 / bottle. Four species of 2 genera of cockroach were found, with American cockroach as the dominant species, with higher density in summer and autumn, lower in winter and spring, and peak in May and June. The monthly average density is positively correlated with the monthly mean temperature in the area.