Ecological Adaptation and Speciation: The Evolutionary Significance of Habitat Avoidance as a Postzygotic Reproductive Barrier to Gene Flow

Table 3

Studies showing evidence consistent with insect avoidance of nonhost plants and/or their volatiles.

Species	Order; Family	Assessment method(s)	Electrophysio. response nonhost volatiles?	Reference
Dryocosmus kuriphilus	Hymenoptera: Cynipidae	Y-tube olfactometer	Yes	[61]
Sitophilus zeamais	Coleoptera: Curculionidae	Four-way olfactometer	?	[62]
Brevicoryne brassicae	Hemiptera: Aphididae	Y-tube olfactometer	Yes	[63]
Aphis fabae	Hemiptera: Aphididae	Y-tube olfactometer	Yes	[63]
Rhagoletis pomonella	Diptera: Tephritidae	Field test; no-choice flight tunnel	Yes	[64, 65]
Diachasma alloeum	Hymenoptera: Braconidae	Y-tube olfactometer	Yes	[66]
Pityogenes chalcographus	Coleoptera: Curculionidae	Field test	?	[67]
Tomicus  piniperda	Coleoptera: Curculionidae	Field test	Yes	[68]
Hylurgops  palliatus	Coleoptera: Curculionidae	Field test	?	[68]
Heliothrips  haemorrhoidalis	Thysanoptera: Thripidae	unknown	?	[70]