Hydrochus variabilis Knisch,

Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), Zootaxa 4994 (1), pp. 1-93: 53

publication ID

https://doi.org/10.11646/zootaxa.4994.1.1

publication LSID

lsid:zoobank.org:pub:107FCA64-345F-40A4-99D3-5C1441EEAD93

persistent identifier

http://treatment.plazi.org/id/03A187DE-FFC8-FFCA-6194-FE0E05C5F68E

treatment provided by

Plazi

scientific name

Hydrochus variabilis Knisch
status

 

Hydrochus variabilis Knisch 

Figs. 5View FIGURE 5, 65View FIGURES 65–66

Hydrochous variabilis Knisch 1921: 2 

Originally described from Brazil. Additional locality and deposition records published for Venezuela ( Perkins, 2019c). Habitus and male genitalia images are given in Perkins (2019a, 2019c). New locality and deposition records for this very commonly collected species, from Bolivia, Brazil and Paraguay, are given below.

Material examined (349): Bolivia: Beni, 1.7 km E of San Borja , (14°52’7’’S, 66°43’53’’W), 15.vii.1998, leg. K. B. Miller (54 SEMC)GoogleMaps  ; 3.4 km W of San Borja , (14°52’57’’S, 66°46’3’’W), 14.vii.1998, leg. K. B. Miller (1 SEMC)GoogleMaps  ; 40 km E. San Borja, Estacion Biologica Beni, Palm Camp at Rio Curiraba , (14°44’S, 66°40’W), 6– 8.ix.1987, leg. W. E. Steiner (2 NMNH)GoogleMaps  ; 7 km SW Trinidad , elev. 163 m (14°52’12’’S, 64°57’32’’W), 18.vii.1998, leg. K. B. Miller (1 SEMC)GoogleMaps  ; Magdalena, No locality data, elev. 155 m (13°15.202’S, 64°2.56’W), 16.viii.2004, leg. Andre Megroz (3 NMW)GoogleMaps  ; Santa Cruz, 60 mi. N. Santa Cruz, Saavedra Exp. Sta. , 27–30.xii.1959, leg. Robert Cumming (9 NMNH)  ; Ayacucho, 13–14.v.1969, leg. P. & P. Spangler (92 NMNH); K 97View Materials nr. Buena Vista , 6.xi.1971, leg. H. P. Brown (1 NMNH)  ; Potrerillos del Guenda, Preserva Natural , elev. 370 m (17°40’S, 63°27’W), 1–4.x.2007, leg. Wappes & Morris (1 SEMC)GoogleMaps  ; Prov. Sara , 2 km NW of Santa Rosa, 21.ii.1969, leg. A. Martinez & R.E. Woodruff (4 NMNH)  ; Santa Cruz, 11–12.v.1969, leg. P. & P. Spangler (9 NMNH)  . Brazil: Bahia, Brumado, Ibitira , ca. 22 km E on BR-30 (-14.23308 -41.90501), 556m, 27.ii.2018, roadside pond, mud substrate with marginal vegetation, leg. Benetti & Team, BR 18-0227-02A (8 INPA, SEMC)GoogleMaps  ; 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 (1 INPA)GoogleMaps  ; Morro do Chapéu , BA-422, E of Ventura (-11.65164 -40.95309), 706m, 24.ii.2018, marsh/pond in cattle pasture, leg. Benetti & Team, BR 18- 0224-04A (1 INPA)GoogleMaps  ; Piatã, Vilarejo Palmerinha (-12.81936 -41.8124), 1000m, 25.ii.2018, reservoir, recently with water, vegetated margins, leg. Benetti & Team, BR 18-0225-02A -. (2 SEMC)GoogleMaps  ; Mato Grosso, Caceres , MT., (16°4’S, 57°41’W), 1–30.xii.1955, leg. M. Alvarenga (1 NMNH)GoogleMaps  ; Corumba , 14–23.xii.1919, leg. R. G. Harris (2 NMNH)  ; same locality, 21–23.ii.1954, leg. Gans & Pereira (11 NMNH)  ; Sete Lagoas , 1–30.iii.1963, leg. F. Werner, Martins, Silva (1 NMNH)  ; Varzea, Grande County, Cuiaba , Parque de Exposicao -., leg. no collector or date given on label (2 NMNH)  ; same locality, 18.iii.1972, leg. W. H. Whitcomb (8 NMNH)  ; same locality, 28.v.1972, leg. R. Williams (10 NMNH)  ; Mato Grosso do Sul, Anastácio, Aquidauana (c. 5 km S) on MS-174 (-20.53416 -55.76038), 166m, 27.vi.2018, Small shallow pond with dense vegetation, leg. Hamada and team, BR18-0627-02A (14 INPA, SEMC)GoogleMaps  ; Corumbá , (c. 29 km SE) on BR-262 (-19.3062 -57.60382), 25.vi.2018, Drying marsh with abundant vegetation and detritus, leg. Hamada and team, BR18-0625-02A (1 INPA)GoogleMaps  ; Dois Irmãos do Buriti , (c. 5 km NW) on MS-162 (-20.63497 -55.32535), 308m, 27.vi.2018, Large pond/lake in cattle field, leg. Hamada and team, BR18-0627-03A -. (4 SEMC)GoogleMaps  ; Dois Irmãos do Buriti, Palmeiras (c. 7 km S) on MS-450 (-20.51369 -55.42803), 240 m, 22.vi.2018, Pond in field, lots of marginal and submergent/ emergent vegetation, leg. Hamada and team, BR18-0622-01A (10 INPA, SEMC)GoogleMaps  ; Miranda (c. 9.5 km SW) on MS-339 (-20.32119 -56.42563), 131 m, 26.vi.2018, Marsh area along side stream, leg. Hamada and team, BR18-0626-03A (6 INPA, SEMC)GoogleMaps  ; Minas Gerais, Monte Azul, Serra do Espinhaço, c. 7 Km E of Monte Azul (-15.17067 -42.80351), 970m, 28.ii.2018, margins of forested stream, leg. Benetti & Team, BR 18-0228-02A (1 INPA)GoogleMaps  ; Pirapora , 1–30.xi.1975, leg. M. Alvarenga (1 CNC)  ; Rio de Janeiro, Icatiaia , temp. mud puddle, 17.iv.1960, leg. Borys Malkin (21 NMNH)  ; Rio Grande do Sul, Bossoroca, Arroio Piratinim , (28°31’50.84’’S, 54°57’40.75’’W), 6.ix.2015, leg. Benetti,C.J.; Pes, A.M.; Hamada, N. & Dantas, G. (3 INPA)GoogleMaps  ; Barra do Angico; Açude no pasto, (28°32’7.4’’S, 54°57’39.7’’), 22.viii.2015, leg. Benetti,C.J.; Pes, A.M.; Hamada, N. & Dantas, G. (8 INPA)  ; Rondonia, Presidente Medici, Ji-Paraná (27 km SW), Rio Urupa (-11.03618 -62.14465), 135m, 10.vii.2018, Series of ponds and fairly large marsh area with abundant vegetation, leg. Short, BR 18-0710-01C (12 INPA, SEMC)GoogleMaps  . P araguay: Alto Parana, Estancia Dimas , (25°33’S, 55°13’W), 24–25.xi.2004, leg. U. Drechsel (18 NMW)GoogleMaps  ; same locality, 17–22.ii.2005, leg. U. Drechsel (16 NMW)GoogleMaps  ; same locality, 1–3.vii.2005, leg. U. Drechsel (1 NMW)GoogleMaps  ; Dep. Concepcion, Stillwasser des Arroyo Toro Paso, Seitenam ( Uferschlamm ), (23°51’S, 56°46’W), 25.x.2002, leg. U. Drechsel (1 NMW)GoogleMaps  ; Dep. Pte. Hayes, Puerto Galileo , (25°8’S, 57°50’W), 27–29.viii.2005, leg. U. Drechsel (6 NMW)GoogleMaps  .

SEMC

University of Kansas - Biodiversity Institute

NMNH

Smithsonian Institution, National Museum of Natural History

NMW

Naturhistorisches Museum, Wien

INPA

Instituto Nacional de Pesquisas da Amazonia

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrochidae

Genus

Hydrochus

Loc

Hydrochus variabilis Knisch

Perkins, Philip D. 2021
2021
Loc

Hydrochous variabilis

Knisch, A. 1921: 2
1921