Hydrochus directus Perkins

Perkins, Philip D., 2021, Taxonomy of Central American water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae), Zootaxa 4974 (3), pp. 459-503 : 474

publication ID

https://doi.org/10.11646/zootaxa.4974.3.2

publication LSID

lsid:zoobank.org:pub:1BD6220B-7540-4A12-B3D2-5EDC1A3B7DD8

DOI

https://doi.org/10.5281/zenodo.4777918

persistent identifier

https://treatment.plazi.org/id/4772526A-0045-FFDF-FF18-2B14116A30E5

treatment provided by

Plazi

scientific name

Hydrochus directus Perkins
status

 

Hydrochus directus Perkins

Fig. 2 View FIGURE 2 , 32 View FIGURES 31–33

Hydrochus directus Perkins 2020a: 295 View Cited Treatment .

Originally described from Guatemala. Following are new locality records for Mexico. Images of the habitus and male genitalia of the holotype, and detailed description of the male genitalia, are given in Perkins (2020a) .

Material examined (3): Mexico: Cotaxtla , Cotaxtla Exp. Sta., 28.vi.1962, leg. D. H. Janzen (1 CNC) ; Oaxaca, Tuxtepec (31km S), Bethania , Ao. Chopan, 24.v.1981, leg. Paul J. Spangler (1 NMNH) ; Veracruz, 9 mi. W. Poza Rica, 27.viii.1965, leg. Paul J. Spangler (1 NMNH) .

Differential diagnosis. Among Central American species, recognized by the combination of moderate size (ca. 3.00 mm), the densely punctate pronotum with the reliefs slightly less punctate than the depressions, and the male genitalia. This species has a generalized Hydrochus habitus; reliable determinations will require dissection of males. The male genitalia of H. directus is very slender, therefore superficially somewhat similar to that of H. aeruginosus n. sp.; however, details of the two distinctly differ, including shape and size of the parameres, size and shape of the basal piece, and form of the adbl. The habitus of the two species also distinctively differ.

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

NMNH

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrochidae

Genus

Hydrochus

Loc

Hydrochus directus Perkins

Perkins, Philip D. 2021
2021
Loc

Hydrochus directus

Perkins, P. D. 2020: 295
2020