Influence of Type of Electric Bright Light on the Attraction of the African Giant Water Bug, Lethocerus indicus (Hemiptera: Belostomatidae)

Table 2

Sex-related prevalence (sex ratio) of the captured Lethocerus indicus from the different light sources in Okpala local government area, Imo state, Nigeria during 2008 and 2009.

Month	Experiment I; [Fluorescent tube]		Experiment II; [Incandescent bulb]		Overall
	Male	Female	Male	Female
May	2	7	11	12	32
June	4	3	16	19	42
July	4	5	15	11	35
December	7	3	11	8	29
Total	17	18	53	50	138
Mean/month	4.25	4.5	13.25	12.5	34.5
Mean/trap	0.14	0.15	0.44	0.42	1.15