2020
Perez-Gelabert, D. E. (2020) Checklist, bibliography and quantitative data of the arthropods of Hispaniola. Zootaxa 4749(1): 668 pp. [publd 10.iii.2020]
Stur, E., Ekrem, T. (2020) The Chironomidae (Diptera) of Svalbard and Jan Mayen. Insects 11(3, paper 183): 103 pp. [for online supporting data, see http://v3.boldsystems.org/ (http://v3.boldsystems.org/) for the public dataset DS-CHIRSV (doi:10.5883/DSCHIRSV)]
Aydın, G. B., Samin, N. (2020) A preliminary study aimed an annotated checklist of Chironomidae (Diptera: Culicomorpha: Chironomoidea) of Iran. Acta aquatica turcica 16(1): 38-50.
Čerba, D., Koh, M., Ergović, V., Mihaljević, Z., Milošević, Dj., Hamerlík, L. (2020) Chironomidae (Diptera) of Croatia with notes on the diversity and distribution in various habitat types. Zootaxa 4780(2): 259-274 + online suppl. material. [publd 25.v.2020]
Medeiros, A. S., Miloševic, Ð., Francis, D. R., Maddison, E., Woodroffe, S., Long, A., Walker, I. A., Hamerlík, L., Quinlan, R., Langdon, P., Brodersen, K. P., Axford, Y. (2020) Arctic chironomids of the northwest North Atlantic reflect environmental and biogeographic gradients. J. Biogeogr. 48(3): 511-525 + online suppl. material. [first publd online 30.xi.2020, full issue online ii.2021]
Moubayed-Breil, J. (2020) Chironomidae de l'écosystème méditerranéen de France continentale sensu lato. Données faunistiques et biogéographiques sur les quatre dernières décennies [Diptera]. Ephemera 21(1): 31-69.
Munjiu, O., Busmachiu, G., Sulesco, T., Subernetkii, I., Toderas, I. (2020) Review of aquatic arthropods (phylum Arthropoda) in the Republic of Moldova. Acta zool. bulgar. 73(1): 31-50. [first publd online x.2020, with issue pagin. iii.2021]