Laccobius Erichson 1837

GENUS LACCOBIUS ERICHSON, 1837 (FIG. 2F–L) Material examined: Laccobius (Compsolaccobius) decorus (Gyllenhal, 1827). 2 males. (BMNH): Sweden, Öland Island, R. Angus lgt. Karyotype: 2 n = 16 + Xy p (♂). Centromeric C-bands strong. All autosomes, and X chromosome, metacentric. Autosomes similarly sized, X chromosome the largest in the nucleus. Comments on karyotypes of Laccobius: Angus & Shaarawi (1997) published the karyotype data of two species of the subgenus Laccobius [Laccobius colon (Stephens, 1829) and Laccobius minutus (Linnaeus, 1758)] and four species of the subgenus Dimorpholaccobius [Laccobius bipunctatus (Fabricius, 1775), Laccobius sinuatus Motschulsky, 1849, Laccobius striatulus (Fabricius, 1801) and Laccobius ytenensis Sharp, 1910]. Laccobius karyotypes all show 2 n = 16 + Xy p (♂). All autosomes and the X chromosome have strong centromeric C-bands, which are particularly strong in Laccobius striatulus and Laccobius sinuatus.
Published as part of Angus, Robert B, Sadílek, David, Shaarawi, Fatma, Dollimore, Hayley, Liu, Hsing-Che, Seidel, Matthias, Sýkora, Vít & Fikáček, Martin, 2021, Karyotypes of water scavenger beetles (Coleoptera: Hydrophilidae): new data and review of published records, pp. 958 in Zoological Journal of the Linnean Society 192 (3) on page 958, DOI: 10.1093/zoolinnean/zlaa105, http://zenodo.org/record/5301134
{"references":["Angus RB, Shaarawi FAI. 1997. Chromosomal analysis of Chaetarthria seminulum (Herbst) and six European species of Laccobius Erichson (Coleoptera: Hydrophilidae). Koleopterologische Rundschau 67: 181 - 186."]}