Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae) Author Perkins, Philip D. text Zootaxa 2021 2021-06-28 4994 1 1 93 journal article 10.11646/zootaxa.4994.1.1 1175-5326 5043261 107FCA64-345F-40A4-99D3-5C1441EEAD93 Hydrochus drechseli Makhan Figs. 5 , 51 Hydrochus drechseli Makhan 1995: 191 Originally described from Paraguay . Habitus and male genitalia images are given herein ( Fig. 51 ). New locality and deposition data for Bolivia , Brazil and Paraguay are given below. Material examined (83): Bolivia : Beni , 1.7 km E of San Borja , ( 14°52’7’’S , 66°43’53’’W ), 15.vii.1998 , leg. K. B. Miller (3 SEMC ) ; 7 km SW Trinidad , elev. 163 m ( 14°52’12’’S , 64°57’32’’W ), 18.vii.1998 , leg. K. B. Miller (8 SEMC ) ; Cercado Province , 9.5 km N of Trinidad , ( 14°46’34’’S , 64°58’0’’W ), 17.vi.1999 , leg. K. B. Miller (1 SEMC ) ; Santa Cruz , 2.7 m S of San Jose , elev. 333 m ( 17°52’20’’S , 60°44’28’’W ), 27.vi.1999 , leg. K. B. Miller (1 SEMC ) ; 3.7 km SSE Buena Vista , Hotel Flora y Fauna , elev. 400 m ( 17°29’S , 63°33’W ), 1–12.v.2004 , leg. A. R. Cline & J. Wappes (1 SEMC ) ; 60 mi. N. Santa Cruz , Saavedra Exp. Sta. , 27–30.xii.1959 , leg. Robert Cumming (1 NMNH ) ; Ichilo , 1.2 km S Buena Vista , ( 17°28’37’’S , 63°40’7’’W ), 19.vi.1999 , leg. K. B. Miller (1 SEMC ) . Brazil : Bahia , Guanambi , 10 km S on BR-122 ( -14.31889 -42.78635 ), 530m , 27.ii.2018 , densely vegetated pond, leg. Benetti & Team, BR 18-0227-03A (46 INPA , SEMC ) . Paraguay : Dep. Alto Paraguay , Madreion , 15.v.1995 , leg. U. Drechsel (6 NMW ) ; Paragro 22, 8–10.iv.2004 , leg. U. Drechsel (2 NMW ) ; Dep. Pte. Hayes , Puerto Galileo , ( 25°8’S , 57°50’W ), 27–29.viii.2005 , leg. U. Drechsel (11 NMW ) ; Dep. San Pedro , 2km E 25 de Diciembre , roadside pool, elev. 191 m , 25.vi.2006 , leg. W. D. Shepard (WDS-A-1698) (1 SEMC ) ; Puerto Antequera , 540 ft. , black lights, 24.vi.2006 , leg. W.D. Shepard (WDS-T-193) (1 SEMC ) . Remarks. I have examined the holotype , including the male genitalia, of H. drechseli (NMW) . The specimen imaged ( Fig. 51 ) has this locality data: Bolivia , Beni , Cercado Province, 9.5 km N of Trinidad , ( 14°46’34’’S , 64°58’0’’W ), 17.vi.1999 , leg. K. B. Miller.