2005

• Wewalka, G., Balke, M., Hájek, J. & Hendrich, L. 2005. Two new species of Anginopachria Wewalka, Balke & Hendrich from Malaysia and Thailand (Coleoptera: Dytiscidae) Koleopterologische Rundschau 75: 45–51. Full article (PDF). Reference page. 

2009

• Švihla, V. & Hájek, J. 2009. Taxonomic changes in Eastern Mediterranean Malachius (Coleoptera: Malachiidae). Acta Entomologica Musei Nationalis Pragae 49(1): 217–224. PDF Reference page. 

2010

• Hájek, J. 2010. Brachypsectra kadleci sp. nov. from Western Iran — The First Palaearctic Member of the Family Brachypsectridae (Insecta: Coleoptera: Elateriformia). Annales Zoologici 60(1): 29-33. Abstract. Reference page. 

2015

• Batelka, J. & Hájek, J. 2015. New synonyms, combinations and faunistic records in the genus Denierella Kaszab (Coleoptera: Meloidae). Zootaxa 4000(1): 123–130. DOI: 10.11646/zootaxa.4000.1.6 . Preview (PDF) Reference page. 

• Král, D. & Hajek, J. 2015. A second species of Cheleion from Johor, Malaysia (Coleoptera, Scarabaeidae, Aphodiinae, Stereomerini). Zookeys 532: 87–97. DOI: 10.3897/zookeys.532.6116 Full article Reference page. 

2016

• Hájek, J. 2016. Hydroporus golestanensis, a new species of the H. longulus group from northern Iran (Coleoptera: Dytiscidae: Hydroporinae). Zootaxa 4072(4): 496–500. DOI: 10.11646/zootaxa.4072.4.7 . Reference page. 

• Šťastný, J. & Hájek, J. 2016. Agabus abaensis sp. nov., a peculiar species of the confinis-group from central China (Coleoptera: Dytiscidae: Agabinae). Zootaxa 4121(3): 311–318. DOI: 10.11646/zootaxa.4121.3.5 . Reference page. 

2017

• Balke, M., Hájek, J. & Hendrich, L. 2017. Generic reclassification of species formerly included in Rhantus Dejean (Coleoptera, Dytiscidae, Colymbetinae). Zootaxa 4258(1): 91–100. DOI: 10.11646/zootaxa.4258.1.7 . Reference page. 

• Bergsten, J., Weingartner, E. & Hájek, J. 2017. Species delimitation analysis of the Hyphydrus ovatus complex in western Palaearctic with an update of species distributions (Coleoptera: Dytiscidae). ZooKeys 678: 73—96. DOI: 10.3897/zookeys.678.12886 . Reference page. 

• Terzani, F., Ceccolini, F., Hájek, J. & Cianferoni, F. 2017. Taxonomic review of the genus Dascillus Latreille, 1797 in the Western Palaearctic (Coleoptera: Dascillidae). Zootaxa 4282(2): 255–268. DOI: 10.11646/zootaxa.4282.2.2 . Reference page. 

2018

• Manuel, M., Deler-Hernández, A., Megna, Y.S. & Hájek, J. 2018. Copelatus Erichson from the Dominican Republic, with the description of a new species, comments on elytral striation and faunistic notes on Antillean species (Coleoptera: Dytiscidae: Copelatinae). Zootaxa 4399(3): 371–385. DOI: 10.11646/zootaxa.4399.3.7 Reference page. 

2019

• Hájek, J. & Zhang, T. 2019. A new Platambus from Sichuan, with new records of species of the P. sawadai group from China (Coleoptera: Dytiscidae: Agabinae). Zootaxa 4612(4): 533–543. DOI: 10.11646/zootaxa.4612.4.5 . Reference page. 

• Hendrich, L., Shaverdo, H., Hájek, J. & Balke, M. 2019. Taxonomic revision of Australian Copelatus Erichson, 1832 (Coleoptera, Dytiscidae, Copelatinae). ZooKeys, 889: 81–152. DOI: 10.3897/zookeys.889.39090 Reference page.