Hydroporus discretus, FAIRMAIRE & BRISOUT, 1859

Fery, H. & Pesic, V., 2006, Hydroporus macedonicus nov. spec., a new member of the Hydroporus planus-group (Coleoptera, Dytiscidae), Linzer biologische Beiträge 38 (1), pp. 595-604 : 600

publication ID	https://doi.org/ 10.5281/zenodo.5433802
DOI	https://doi.org/10.5281/zenodo.5488960
persistent identifier	https://treatment.plazi.org/id/03B5151E-FF8B-FF86-5BF6-FDD0FC73BA47
treatment provided by	Valdenar
scientific name	Hydroporus discretus
status

Treatment

Hydroporus discretus View in CoL ab. woerndlei ZIMMERMANN 1919

Hydroporus discretus View in CoL ab. woerndlei ZIMMERMANN 1919: 174 (orig. descr.), ZIMMERMANN 1920: 83, ZIMMERMANN 1931:142, NILSSON 2001: 277.

M a t e r i a l s t u d i e d: A u s t r i a: 2, " Tirol [printed], Innsbruck [hw?]", "Hallerau, 8.9.[19]12" [hw?], "Type" [round, light blue-green label, hw Zimmermann], " Samml. A. Zimmermann " [printed], " Paratypus " [red, printed; unauthorised curatorial designation] ( ZSM). 2, "Innsbruck" [hw Zimmermann], "Type" [round, light blue-green label, hw Zimmermann], " Samml. A. Zimmermann " [printed], " Paratypus " [red, printed; unauthorised curatorial designation] ( ZSM). N o t e s: All four "typical" specimens from the ZSM are rather immature. 1, "Amraser Au, 5.IX.[19]24" [hw Wörndle], "Innsbruck, A. Wörndle " [printed], " Hydroporus discretus View in CoL ab. Woerndlei Zim." [hw?], "Co-Typus" [red, unauthorised curatorial designation] ( NMW). 1 "Amr. Au" [hw Wörndle], "Innsbruck, A. Wörndle " [printed], " Hydroporus discretus View in CoL a. Woerndlei Zim." [hw?], "a Wörndlei Zim." [hw?], on reverse "piceus Sturm l. c. 66."[printed], "Co-Typus" [red, unauthorised curatorial designation] ( NMW). N o t e s: M. Kahlen kindly communicated that the locality "Amraser Au" was once a real "beetle paradise", a river pasture on the left side of the river Inn , east of Innsbruck, in Austria ; altitude 565 m, co-ordinates ca. 47.16N 11.26E. Today this locality has been totally destroyed by a highway, a sewage plant, industrial factories, etc. 1, 3, "Welsberg, Ti. [= Tirol], Ganglbauer" [printed], the male with additional " R. Mouchamps det., Hydroporus discretus View in CoL ab. wörndlei Zimm." [hw Mouchamps in part] ( NMW). 1, " Kaernten [= Kärnten, province in Austria], 18 Diener 98 [= collector Diener, 1898]" ( CHF) GoogleMaps .

Descriptive notes: H. discretus ab. woerndlei is a taxon of infrasubspecific rank (cf. article 45.6.2 of the ICZN). The specimens studied have an oval elongate and vaulted habitus which equals that of H. discretus discretus from e. g. France and Germany. Mature specimens have dark brownish elytra, and a black pronotum with its lateral beading sometimes brownish. The base of the elytra is light brown, and some specimens have a rather distinct yellowish brown spot on the shoulders. The aedeagus is similar to that of H. discretus from other regions.

Measurements: TL: 3.0– 3.35 mm, MW: 1.6–1.75 mm; TL/MW: 1.82–1.94.