Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 86. (Budapest 1994)

Makhan, D.: Thirty-five new Hydrochus species from the Old and the New World (Coleoptera: Hydrophilidae)

Hydrochus binaraiae sp. n. (Fig. 7) Holotype: male. Zaire, Katanga, Kangele, 4.1V.1925, CH. SEYDEL (MUS. Tervuren). - Paratype: 1 female, Zaire, Elisabetville, Feb. 1940, H. J. BREDO (Mus. Budapest). Description (holotype male): Body elongate, length 4.3 mm, width 1.6 mm. Dorsal side shining. Colour of head, pronotum, scutellum and elytra black and with a blue-green metallic gloss. Head with coarse punctures. Pronotum longer than wide, lateral side smooth. Disc with five large deep depressions. Anterior margin of pronotum with three depressions, one in the centre, two behind this. Posterior margin with three depressions. Elytral length 2.9 mm, elytra widest on posterior third, lateral side smooth, interstriae wider than striai punctures, 3rd, 5th and 8th interstriae carinate in almost whole length. Tubercle absent. Apical holes absent. Elytral apices rounded. Male genitalia (Fig. 7): Basal piece long, páraméra longer than median lobe. Etymology: The species is named after my sister BINARAI MAKHAN. This species seems to be allied to H. deprinsi sp. n., H. rypkemai sp. n. and H. tineae sp. n. H. binaraiae is easily distinguished by its larger size, and the male genitalia in H. deprinsi are larger than H. binaraiae. Hydrochus deprinsi sp. n. (Fig. 8) Holotype: male. Zaire, Lukawe, Lufira, 16.X.1947, G. F. DE WITTE (only the holotype) (Mus. Tervuren). Description (holotype male): Body elongate, length 3.8 mm, width 1.4 mm. Dorsal side shining, colour of head, pronotum, scutellum and elytra brown and with a blue-green metallic gloss. Head with dense, fine punctures. Pronotum longer than wide, lateral side smooth. Disc with five large shallow depressions. Anterior margin of pronotum with three depressions, one at the centre, two behind this. Posterior margin with two depressions. Elytral length 2.5 mm, elytra widest on posterior third, lateral side smooth, striai punctures coarse, interstriae wider than striai punctures, tubercle absent. Apical holes absent. Elytral apices rounded. Male genitalia (Fig. 8): Basal piece long, páraméra longer than median lobe. Etymology: This species is named after WILLY DE PRINS. publisher of Phegea (Belgium). Figs 8-14. Male genitalia of holotypes. 8 = Hydrochus deprinsi sp. n., 9 = H. rypkemai sp. n., 10 = H. tineae sp. n., 1 = H. satishi sp. n., 12 = H. anandi sp. n., 3 = H. harrydeepaki sp. n., 4 = H. kiranae sp. n. (scale = 0.25 mm)