Hydroporus kraatzii Schaum, 1868

Fery, Hans, 2009, New species of the Hydroporus longulus-group from Iran, Armenia and Turkey with a synopsis of the group (Coleoptera: Dytiscidae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 529-558 : 550-551

Hydroporus kraatzii Schaum, 1868

Hydroporus kraatzii Schaum, 1868 in KRAATZ (1868: 384) (original description).

Hydroporus kraatzii Schaum, 1868 in SCHAUM & KIESENWETTER (1868: 66), syn. nov. (objective junior synonym and primary homonym, preoccupied by H. kraatzii Schaum, 1868 in KRAATZ (1868: 384); synonymy personally communicated by A. N. Nilsson, Umeå, Sweden).

Hydroporus kraatzii Schaum, 1868 in SCHAUM & KIESENWETTER (1868: 66): SHARP (1882: 481) – NILSSON & HOLMEN (1995: 67) – NILSSON (2009a: 146).

Hydroporus kraatzi Kiesenwetter, 1868 : GEMMINGER & HAROLD (1868: 435) (incorrect authorship, referring to H. kraatzii Schaum, 1868 in SCHAUM & KIESENWETTER (1868)).

Hydroporus kraatzi Schaum, 1868 : ZIMMERMANN (1919: 169, 1920: 88, 1931: 153). – SCHAEFLEIN (1971: 38).

Hydroporus hedwigi Reitter, 1897: 45 : ZIMMERMANN (1919: 169) (synonymy with H. kraatzii ). – NILSSON (2007: 51).

Hydroporus hedwigae Schenkling, 1917: 52 (unjustified emendation of H. hedwigi Reitter ): NILSSON (2007: 51) (synonymy).

Type locality. Poland, ‘ Glatzer Schneeberg’ [‘Schneeberg’ = ‘snow mountain’; this mountain is called Králický Sněžník in Czech and Śnieżnik Kłodzki in Polish]. The border between the Czech Republic and Poland runs exactly across the peak of the mountain. The co-ordinates of the ‘ Glatzer Schneeberg’ are given in Wikipedia (access January 2009) as 50.201N 16.849E. According to KRAATZ (1968: 384), Kraatz himself collected at least some specimens on the northern slope of the ‘Glatzer Schneeberg’. It is therefore more likely that the type locality is in Poland and not in the Czech Republic .

Type material. LECTOTYPE (by present designation): J, a small rectangular dark blue label, ‘Type’ [hw Cl. Müller], ‘Glatzer Schneebg’ [hw Cl. Müller], ‘Type von Hydr. Kraatzi Schaum’ [red, hw?], ‘ Lectotype, Hydroporus kraatzii Schaum, 1868 , des. H. Fery 2009 ’ [red, printed] ( ZSM) .

Notes on the type material. According to HORN et al. (1990: 345) and SCHERER (1982: 60), at least parts of Schaum’s Hydroporinae came ‘via E. A. H. v. Kiesenwetter, via Cl. Müller’ to the ZSM in 1905. It is known from other Schaum’s types that at least some of them were provided with a small rectangular dark blue label and/or that Clemens Müller, owing to his knowledge about the origin of the specimens, added labels in his own handwriting (see FERY 1992a: 67, 1992b: 119, 1992c: 343, 351; FERY et al. 1996: 315; FERY & BRANCUCCI 1997: 247). Thus, I have no doubt that the designated lectotype is a (former) syntype of H. kraatzii Schaum, 1868 .

HORION (1941: 393) reported that ‘types’ should be stored in the Deutsches Entomologisches Institut ( DEI). However, DÖBLER (1976) did not list any types of H. kraatzii in the collections of the DEI and I have not been able to find such specimens during several visits at that institute.

The first publication of the name Hydroporus kraatzii ( KRAATZ 1868: 384) cites the species as ‘ Hydroporus Kraatzii Schaum n. sp. in litt.’ Although the author of that work is Kraatz, the authorship of the taxon must be assigned to Schaum because he is cited as the author. In addition, the taxon was described by Schaum a second time in SCHAUM & KIESENWETTER (1868: 66) (compare Article 50.1.1 including the Example in ICZN 1999).