Table 2. Comparisons of average values for a range of biochemical assays between F₁ adult progeny An. funestus from Tihuquine populations and the An. gambiae Kisumu insecticide-susceptible reference strain.

	Chokwe		Kisumu
	Average	P value
pNPA	0.101	0.001	0.0126
α-Naphthyl acetate	3.52 10−05		3.68 10−05
β-Naphthyl acetate	5.9 10−05		5.03 10−05
P450	0.009	0.02	0.004
GST	0.336	0.001	0.0161
AChE	45.2	0.001	67.4

α- naphthyl acetate: mMoles α-naphthol produced/min/mg protein.

β- naphthyl acetate: mMoles β-naphthol produced/min/mg protein.

p450: Equivalent units of cytochrome p450. GST: GST activity.

AChE: average percentage inhibition of AChE by propoxur.