Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic Author Bezděk, Aleš Biology Centre ASCR, Institute of Entomology, Branišovská 31, CZ- 370 05 České Budějovice, Czech Republic; e-mail: bezdek @ entu. cas. cz Author Hájek, Jiří Department of Entomology, National Museum, Kunratice 1, CZ- 148 00 Praha 4, Czech Republic; e-mail: jiri _ hajek @ nm. cz Author Ascr, Biology Centre text Acta Entomologica Musei Nationalis Pragae 2012 2012-06-30 52 1 297 334 journal article 10.5281/zenodo.5330401 0374-1036 5330401 Canthidium opacum Balthasar, 1939 Canthidium opacum Balthasar, 1939a: 133 . The holotype is deposited in NMPC (ex coll. V. Balthasar): HOLOTYPE (unsexed specimen):‘S. ECUADOR / Landangui EW [p] // Typus [p, red label, black margin] // Canthidium / opacum n. sp. [hw] / Dr. V . Balthasar det. [p] // opacum m. [hw, green label, black margin]’. Current status. Canthidium ( Eucanthidium ) opacum Balthasar, 1939 , see MARTÍNEZ & HALFFTER (1986) .