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Martin, J. 2020. Chironomus calligraphus Goeldi, 1905 and C. hawaiiensis Grimshaw, 1901 are sibling species. CHIRONOMUS Journal of Chironomidae Research. 33 (Dec. 2020), 59-63. DOI:https://doi.org/10.5324/cjcr.v0i33.3818.