Hydrochus pupillus Orchymont

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 : 50

publication ID

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

publication LSID

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

persistent identifier

https://treatment.plazi.org/id/03A187DE-FFCD-FFCE-6194-FE7D0713F306

treatment provided by

Plazi

scientific name

Hydrochus pupillus Orchymont
status

 

Hydrochus pupillus Orchymont View in CoL

Figs. 5 View FIGURE 5 , 50 View FIGURES 50–51

Hydrochus pupillus Orchymont, 1939: 254 View in CoL

Hydrochus soekhnandanae Makhan View in CoL ; incorrect synonymy by Oliva (1996); corrected by Perkins (2019c)

Originally described from Argentina. The following new locality records are from Bolivia and Brazil.

Material examined (8): Bolivia: Beni, 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 (1 NMNH) GoogleMaps ; same locality, 13.ix.1987, leg. W. E. Steiner (3 NMNH) GoogleMaps . Brazil: Mato Grosso, Corumba , leg. F. Plaumann [no date] (3 NMNH) ; Sao Paulo, Piracicaba , (22°44’S, 47°39’W), 10.i.1966, leg. C. A. Triplehorn (1 NMNH) GoogleMaps .

Remarks. The RBINS kindly provided four paratypes of Hydrochus pupillus Orchymont , which are part of the Orchymont collection. Unfortunately, the holotype could not be found. The paratypes consist of two males, and two females. The two males have been dissected, and are conspecific. The females appear to also represent the same species. I have selected one of the males to image the habitus and male genitalia ( Fig. 50 View FIGURES 50–51 ). Oliva (1996) also noted the four paratypes, but did not mention anything about the holotype.

The male genitalia of H. soekhnandanae and H. pupillus distinctively differ. Refer to the images of H. soekhnandanae in Perkins (2019c) and H. pupillus herein ( Fig. 50 View FIGURES 50–51 ).

NMNH

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrochidae

Genus

Hydrochus

Loc

Hydrochus pupillus Orchymont

Perkins, Philip D. 2021
2021
Loc

Hydrochus pupillus

Orchymont, A. 1939: 254
1939
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