Berosus metalliceps Sharp, 1882

Deler-Hernandez, Albert, Fikacek, Martin & Cala-Riquelme, Franklyn, 2013, A review of the genus Berosus Leach of Cuba (Coleoptera, Hydrophilidae), ZooKeys 273, pp. 73-106 : 84-86

Berosus metalliceps Sharp, 1882 Figures 5 a–g 11

Berosus metalliceps Sharp, 1882: 83. - Van Tassell 1966: 150 (unpublished PhD thesis: redescription, identification key). - Epler 2010: 12.24 (taxonomic and distribution notes). For complete synonymy and references see Hansen (1999).

Type locality.

México: Tres Marías Island.

Material examined.

CUBA: Camagüey:1 ex. (dry-mounted) (NMPC): Cayo Sabinal, permanent lagoon, 21°38'6.1"N, 77°10'8.2"W, 5 m a.s.l., 06.v.2010, leg. Y. Torres.

Diagnosis.

Habitus as in Figs 5a, b. Body length 4.5 mm. Head metallic black, pronotum pale without dark spots, elytra pale with dark stripes on elytral series and slightly darker spot in posterior third of interval 1. Elytral apices entire and rounded. Mesoventral process laminar, triangular in shape, anterior tooth projecting posteriad (Fig. 5c). Abdominal ventrite 1 with median keel developed only between metacoxae. Emargination of abdominal ventrite 5 rectangular, without tooth median (Fig. 5g). Aedeagus (Figs 5 d–f) with median lobe much longer than parameres, with enlarged spatula–shaped apex in ventral view, sinuate on dorsal face in lateral view. Parameres simple, rounded apically, phallobase ca. 0.3 × total length of aedeagus.

Distribution.

USA (California), Mexico, Bahamas ( Young 1953; Hansen 1999) and Cuba. The above specimen represents the first record of Berosus metalliceps from Cuba.

Habitat.

The Cuban specimen was collected in the highly exposed brackish permanent lagoon with muddy bottom.