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Od 2017. godine zabilježeno je najmanje 66 izumiranja vrsta insekata u prethodnih 500 godina, a što se uglavnom događalo na okeanskim otocima.<ref name="Briggs2017">{{cite journal |last1=Briggs |first1=John C |title=Emergence of a sixth mass extinction? |journal=Biological Journal of the Linnean Society |date=October 2017 |volume=122 |issue=2 |pages=243–248 |doi=10.1093/biolinnean/blx063}}</ref> > Smanjenje broja insekata pripisano je vještačkojj rasvjeti,<ref name="Owens2018">{{cite journal |last1=Owens |first1=Avalon C. S. |last2=Lewis |first2=Sara M. |title=The impact of artificial light at night on nocturnal insects: A review and synthesis |journal=Ecology and Evolution |date=November 2018 |volume=8 |issue=22 |pages=11337–11358 |doi=10.1002/ece3.4557|pmid=30519447 |pmc=6262936 }}</ref> promjeni u korištenju zemljišta kao što su urbanizacija ili poljoprivreda,<ref name="Tscharntke2005">{{cite journal |last1=Tscharntke |first1=Teja |last2=Klein |first2=Alexandra M. |last3=Kruess |first3=Andreas |last4=Steffan-Dewenter |first4=Ingolf |last5=Thies |first5=Carsten |title=Landscape perspectives on agricultural intensification and biodiversity and ecosystem service management |journal=Ecology Letters |date=August 2005 |volume=8 |issue=8 |pages=857–874 |doi=10.1111/j.1461-0248.2005.00782.x|url=https://semanticscholar.org/paper/137128a6623ab5265983db14636a0df94b954735 }}</ref><ref>{{cite book |title=Insect-plant interactions in a crop protection perspective |isbn=978-0-12-803324-1 |pages=313–320|date=2017-01-19 }}</ref> upotreba pesticida,<ref>{{cite journal |last1=Braak |first1=Nora |last2=Neve |first2=Rebecca |last3=Jones |first3=Andrew K. |last4=Gibbs |first4=Melanie |last5=Breuker |first5=Casper J. |title=The effects of insecticides on butterflies – A review |journal=Environmental Pollution |date=November 2018 |volume=242 |issue=Pt A |pages=507–518 |doi=10.1016/j.envpol.2018.06.100|pmid=30005263 |url=https://radar.brookes.ac.uk/radar/items/fddc88d3-25f2-4274-9321-2f9b3b72047a/1 }}</ref> i i invaziijske vrste.<ref>{{cite journal |last1=Wagner |first1=David L. |last2=Van Driesche |first2=Roy G. |title=Threats Posed to Rare or Endangered Insects by Invasions of Nonnative Species |journal=Annual Review of Entomology |date=January 2010 |volume=55 |issue=1 |pages=547–568 |doi=10.1146/annurev-ento-112408-085516|pmid=19743915 }}</ref> Studije sažete u pregledu za 2019. godinu sugeriraju da je velikom broju vrsta insekata prijeti izumiranje u 21. stoljeću.<ref name="Wyckhuys2019">{{cite journal |last1=Sánchez-Bayo |first1=Francisco |last2=Wyckhuys |first2=Kris A.G. |title=Worldwide decline of the entomofauna: A review of its drivers |journal=Biological Conservation |date=April 2019 |volume=232 |pages=8–27 |doi=10.1016/j.biocon.2019.01.020}}</ref> Iako ekolog Manu Sanders napominje da je pregled za 2019. godinu bio pristran uglavnom isključivanjem podataka koji pokazuju povećanje ili stabilnost populacije insekata, a studije su bile ograničene na specifična geografska područja i određene grupe vrsta.<ref>{{cite web |last1=Saunders |first1=Manu |title=Insectageddon is a great story. But what are the facts? |url=https://ecologyisnotadirtyword.com/2019/02/16/insectageddon-is-a-great-story-but-what-are-the-facts/ |website=Ecology is not a dirty word |accessdate=24 February 2019 |language=en |date=16 February 2019 |archive-url=https://web.archive.org/web/20190225044750/https://ecologyisnotadirtyword.com/2019/02/16/insectageddon-is-a-great-story-but-what-are-the-facts/ |archive-date=25. February2. 2019 |url-status=livedead }}</ref> Sumnje o očekivanom masovnom izumiranju insekata ili „apokalipsi insekata“ zasnovane na podskupini ovih studija popularizirane su u vijestima, ali često ekstrapolirane izvan podataka studije ili putem naučnih konferencija za novinare, koji hiperboliziraju rezultate istraživanja.<ref name="ESA2019">{{cite web |title=Global Insect Biodiversity: Frequently Asked Questions |url=http://www.entsoc.org/sites/default/files/files/Science-Policy/2019/Global%20Insect%20Biodiversity%20FAQs.pdf |publisher=Entomological Society of America |accessdate=6 March 2019}}</ref> Za neke grupe insekata kao što su leptiri, pčele i tvrdokrilce, u evropskim studijama, bilježe se veća brojnost i raznolikost. Ostala područja pokazala su porast nekih vrsta insekata, iako su trendovi u većini regija trenutno nepoznati. Teško je procijeniti dugoročne trendove u bogatstvu ili raznolikosti insekata, jer dugoročna mjerenja uglavnom nisu poznata za mnoge vrste. Čvrsti podaci za procjenu područja ili vrsta ugroženih posebno nedostaju za arktičke i tropske regije i veći dio Južne hemisfere.