Supplementary material 1 from: Bolshakov VV, Prokin AA, Artemenko SV (2021) ﻿Karyotype and COI gene sequence of Chironomus heteropilicornis Wülker, 1996 (Diptera, Chironomidae) from the Gydan Peninsula, Russia. Comparative Cytogenetics 15(4): 447-458. https://doi.org/10.3897/CompCytogen.v15i4.73135