Table 2.

Analysis of variance with repeated measures over time for the mean number of Aedes aegypti larvae preyed upon (at 40-min intervals) by Belostoma anurum after 24 h of exposure to extracts of Chiococca alba (i.e., without recovery).

Sources of Variation	df	F	p
Between factors
Extract (Ex)	1	0.06	0.80
Error	28	-	-
	dfnum	dfden	Wilks’ lambda	F	P
Within each factor
Time (T)	8	21	0.309	5.87	0.0050 *
T × Ex	8	21	0.436	3.40	0.0116 *

* Significant at p < 0.05.