Table 6. Cost efficiency indices for the better designs.

Species	Target size (m× m)	Material	Shape	Code	Mean density (Both sexes)	Index	Tsetse/m2
	1×1	BkBlBk	V	A	-	1	1
G.p. gambiensis	0.5×0.25	BkBlN	H	E	4.5	0.35	2.8
G.p. gambiensis	0.5×0.25	BBlN	H	G	3.5	0.27	2.16
G.p. gambiensis	0.25×0.5	BkBlBk	V	H	1.8	0.28	2.24
G.p. gambiensis	0.75×0.5	BkBlBk	H	L	18.9	0.86	2.29
G.p. gambiensis	0.75×0.5	NBlN	H	C	19.4	0.89	2.37
G.p. gambiensis	0.75×0.5	BkBlN	H	M	19.3	0.88	2.35
G. tachinoides	0.75×0.5	NBlN	H	C	20.7	1.23	3.28
G. tachinoides	0.5×0.25	BkBlN	H	E	5.3	0.31	2.48
G. tachinoides	0.5×0.25	NBlN	H	G	5.1	0.30	2.4
G.p. palpalis	0.25×0.5	BkBlBk	V	H	10.5	0.3	2.4
G.p.palpalis	1×1	NBlN	V	J	77	2.35	2.35

Bk = Black; Bl = Blue; N = Net; H = Horizontal;