Hydrochus vanvondeli Makhan

Perkins, Philip D., 2021, Taxonomy of Central American water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae), Zootaxa 4974 (3), pp. 459-503: 480-481

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.4777946

persistent identifier

http://treatment.plazi.org/id/4772526A-005F-FFD9-FF18-29B2106A31C5

treatment provided by

Plazi

scientific name

Hydrochus vanvondeli Makhan
status

 

Hydrochus vanvondeli Makhan  

Figs. 23 View FIGURES 23–24 , 42 View FIGURES 40–42

Hydrochus vanvondeli Makhan 1994: 41   .

Originally described from Mexico. The following are new locality data records for Central America.

Material examined (124): Costa Rica: 10 mi. NW Liberia , 25.vii.1965, leg. Paul J. Spangler (1 NMNH)   ; 16 m. S. La Cruz , 13.vii.1965, leg. Paul J. Spangler (67 NMNH)   . Honduras: Casas Viejas , 20.v.1966, leg. J. M. Matta (4 FSCA)   ; Cortes, 24 mi. S. San Pedro Sula, 19.vi.1974, leg. M. E. and P. D. Perkins (3 MCZ)   ; Ocotepeque, 11 mi. S. Nueva   Ocotepeque, 17.vi.1974, leg. M. E. & P. D. Perkins (3 MCZ)   . Mexico: Cotaxtla, Cotaxtla Exp. Sta. , 28.vi.1962, leg. D. H. Janzen (3 NMNH)   ; Campeche, 21 mi. E. Campeche, 27.vii.1964, leg. Paul J. Spangler (1 NMNH)   ; Escarcega , 18.v.1962, leg. F. Islas S. (14 NMNH)   ; Oaxaca, Zanatepec , 22.vii.1964, leg. Paul J. Spangler (3 NMNH)   ; Zanatepec (8 km E), 23.v.1981, leg. P. J. Spangler (10 NMNH)   ; San Luis Potosi, El Salto Falls , elev. 610–762 m, 22.iv.1965, leg. H. V. Weems, Jr. (2 FSCA)   ; Sinaloa, 7 mi. N. Rosario, 24.vii.1963, leg. Paul J. Spangler (1 FSCA)   ; Sonora, 3 mi. W. of Yecora , 20.iv.1988, leg. D. A. Polhemus (3 NMNH)   ; Veracruz, 20 mi. NW Rt. 144 Huatusco , 28.vi.1963, leg. Robt. E. Woodruff (3 FSCA)   ; Cuitlahuac , 10-12.viii.1964, leg. Paul J. Spangler (1 NMNH)   ; Mpio. Misantla , ca. 2 km E of Libertad, 14.vi.2013, 56 m, 20°03´59.5’’ N, 96° 57’ 22.5’’ W, D. Reynoso col. (1 IEXA) GoogleMaps   . Nicaragua: Rivas, Belen   Rivas, 18.vii.1957, leg. D. R. Lauck (4 NMNH)   .

Differential diagnosis. Among Central American species, recognized by the combination of moderate size (ca. 3.00 mm), the moderately densely punctate pronotum with moderately deep foveae, and the male genitalia ( Fig. 23 View FIGURES 23–24 ; described below). This species has a generalized Hydrochus   habitus; reliable determinations will require dissection of males. The male genitalia have the paramere tips extending well beyond aedeagus apex, such that the tip of the aedeagus is usually on the same transverse level as the very weakly developed plsa, and the paramere tips do not have excavations.

Male genitalia ( Fig. 23 View FIGURES 23–24 ). General characters: paramere tips slender and pointed, extending well beyond aedeagus apex, narrower in lateral view than in dorsal/ventral views, in dorsal/ventral views with medial margins at apex parallel or nearly so, then arcuate away from midline, narrow proximal to very small plsa; aedeagus in dorsal/ventral views lanceolate, moderately wide at agw, slender in distal ½, wider in proximal 1/2; in lateral view slightly wider, with dorsal margin weakly sinuate; lateral margins of aedeagus sclerotized; basal piece shorter than parameres, tapering from distal to proximal, orifice strongly sclerotized.

Dorsal surface: pdmm widely separated, except narrowly separated and overlapping aedeagus basally; adbl moderately large; adtl slightly distal to midlength; paramere tips without sclerotized ridge.

Ventral surface: pvmm approximating lateral margin of aedeagus; avtl at ca. proximal 1/4.

Remarks. I have examined the holotype, including the male genitalia, of H. vanvondeli (ZMHB)   ( Fig. 23 View FIGURES 23–24 ).

NMNH

Smithsonian Institution, National Museum of Natural History

FSCA

Florida State Collection of Arthropods, The Museum of Entomology

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrochidae

Genus

Hydrochus

Loc

Hydrochus vanvondeli Makhan

Perkins, Philip D. 2021
2021
Loc

Hydrochus vanvondeli

Makhan, D. 1994: 41
1994