Foraging Behavior of the Blue Morpho and Other Tropical Butterflies: The Chemical and Electrophysiological Basis of Olfactory Preferences and the Role of Color

Table 2

Chemical volatile compounds collected from fermented banana and the presence (+) of EAD-responses to these compounds in various appendages of Blue Morpho butterfly (Morpho helenor).

Number in Figure 4	Volatile compound	Antenna	Mid-leg	Proboscis	Labial palp	Foreleg
1	2-Methylpropyl acetate	+	+	+		+
2	Ethyl butanoate	+	+	+	+	+
3	Butyl acetate	+	+	+		+
4	1-Methylbutyl acetate	+	+	+	+	+
5	3-methylbutyl acetate	+	+	+		+
6	Isobutyl isobutyrate	+	+	+		+
7	Butyl butanoate	+	+	+		+
8	Hexyl acetate	+	+	+		+
9	1-Methylhexyl acetate	+	+	+		+
10	Butyl 3-methylbutanoate	+	+	+		+
11	Pentyl pentanoate	+	+	+	+	+
12	Ethyl 2-methylpropanoate				+
13	Propyl acetate				+
14	Isopentyl formate				+
15	Hexenyl acetate				+