Table 2.

Number of insect OBPs and ORs identified from insect genome studies.

Insect species	Insect order	OBPs	ORs	References
Bombyx mori	Lepidoptera	–	64	Xia et al., 2008
Drosophila melanogaster	Diptera	50	60	Clark et al., 2007
Camponotus floridanus	Hymenoptera	–	139	Bonasio et al., 2010
Harpegnathos saltator	Hymenoptera	–	105	Bonasio et al., 2010
Apis mellifera	Hymenoptera	21	170	Weinstock et al., 2006
Tribolium castaneum	Coleoptera	47	265	Richards et al., 2008
Anopheles related species	Diptera	–	60	Neafsey et al., 2015
Plutella xylostella	Lepidoptera	38	87	You et al., 2013
Nasonia species	Hymenoptera	90	64	Werren et al., 2010
Danaus plexippus	Lepidoptera	32	64	Zhan et al., 2011; Vogt et al., 2015
Culex quinquefasciatus	Diptera	–	180	Arensburger et al., 2010
Cerapachys biroi	Hymenoptera	15	506	Oxley et al., 2014
Glossina morsitans	Diptera	32	46	Watanabe et al., 2014
Aedes aegypti	Diptera	70	56	Sinkins, 2007
Acyrthosiphon pisum	Hemiptera	15	79	Richards et al., 2010
Rhodnius prolixus	Hemiptera	27	106	Mesquita et al., 2016
Linepithema humile	Hymenoptera	12	367	Smith et al., 2011
Solenopsis invicta	Hymenoptera	12	400	Wurm et al., 2011
Aedes albopictus	Diptera	86	158	Xu et al., 2016
Blattella germanica	Blatodea	109	134	Robertson et al., 2018
Bemisia tabaci	Homoptera	8	–	Zeng et al., 2018