Amphiops, Erichson, 1843

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, Zoological Journal of the Linnean Society 192 (3), pp. 958-958 : 958-

GENUS AMPHIOPS ERICHSON, 1843

( FIG. 2A–E )

Material examined: Amphiops mater Sharp, 1873: 2 females (BMNH); 1 female ( NMPC): Taiwan, Beipu , 24.707467°N 121.060870°E, 12.ix.2018, H.-C. Liu lgt .

Karyotype: 2n = 18 (♀). The largest pair of chromosomes is submetacentric, the remaining pairs are metacentric.

C-banding shows clear centromeric C-bands and terminal C-bands (heterozygous) on pairs 2 and 9.

TRIBE BEROSINI

Figures

Figure 2. Karyotypes of the Amphiopini and Laccobiini. A–E, Amphiops mater, mitotic methaphase from midgut. F–L, Laccobius decorus, mitotic metaphase from midgut.A, C, F, H, J, without treatment. B, D, G, I, K, C-banded. Habitus figures: (E) Amphiops mater; (L) Laccobius decorus.