Asthenolabus canadensis ( Cresson, 1877 )

Dal Pos, Davide, Heilman, Victoria & Welter-Schultes, Francisco, 2022, Platylabini (Hymenoptera: Ichneumonidae: Ichneumoninae) of the south-eastern United States: new distributional data, taxonomic notes, illustrated keys, and an annotated catalogue of the genera and species, Journal of Natural History 56, pp. 1869-1938 : 1884-1885

publication ID	https://doi.org/10.1080/00222933.2022.2134061
DOI	https://doi.org/10.5281/zenodo.7404800
persistent identifier	https://treatment.plazi.org/id/03DD87D3-FFD4-FF88-5581-93BAFD376D2E
treatment provided by	Plazi (2022-12-05 07:35:36, last updated 2024-11-26 04:53:03)
scientific name	Asthenolabus canadensis ( Cresson, 1877 )
status

Treatment

Asthenolabus canadensis ( Cresson, 1877) View in CoL

( Figures 9 View Figure 9 , 10 View Figure 10 )

Platylabus canadensis Cresson, 1877: 200 (descr., key); Cresson 1887: 191 (cat.); Dalla Torre 1902: 781 (cat.); Bradley 1903: 282 (distr., key, fig.); Berthoumieu 1904: 57 (cat.); Cresson 1916: 23 (type); Johnson 1927: 143 (distr.); Strickland 1946: 41 (distr.); Townes 1944: 311 (cat.); Townes and Townes 1951: 280 (distr., cat.).

Asthenolabus canadensis Heinrich 1962b: 776 View in CoL (descr., distr., neallotype designation, key); Carlson 1979: 546 (cat., distr.); Yu and Horstmann 1997: 673 (cat.); Yu et al. 2016 (cat.). Original type series

Lectotype ♀ (ANSP). Cresson (1877, p. 200) described Platylabus canadensis from ‘Hab.– Canada’ without specifying the number of specimens included in the description. Cresson (1916, p. 23) in his list of types, simply reported the type to be a female and in ‘ I n good condition’, without clarifying the number of specimens. Townes (1944, p. 311) and Townes and Townes (1951, p. 280) did not specify any number of specimens either. Later on, Heinrich (1962b, p. 776) referred to the specimen as the ‘Holotypus’. Carlson (1979, p. 317) expressed the assumption that Cresson (1916) ‘indicated which single specimen was to be regarded as the type for each; thus he selected lectotypes for those cases in which he had described a species from more than one specimen’. Hopper (1984, p. 968) reported being unable to see how it can be claimed that Cresson (1916) indicated a single specimen to be the type. This statement contradicted Cresson’s (1916, p. 1) own statement that ‘In selecting the single type the author has been governed by the present condition of the original material, and has always selected the perfect, or more nearly perfect specimen’ and suggests that Hopper (1984) overlooked this clear indication of Cresson’s (1916) intention to select a single name-bearing type (i.e. a lectotype in the modern sense). Cresson’s (1916) lectotype designation was valid and no subsequent lectotype designation has any validity ( ICZN 1999, Article 74.1.1). The fact that the selected specimen eventually could no longer be traced, as suggested by various subsequent authors ( Heinrich 1962b, p. 780; Hopper 1984), could be explained by collection mismanagement and has no influence on the validity of the lectotype selection. Only a careful study of Cresson’s collection can provide more insights. Heinrich’s (1962b, p. 776) employment of the term ‘holotypus’ is in error.

References

Berthoumieu V. 1904. Fam. Ichneumonidae, Subfam. Ichneumoninae. Gen Ins. 18: 1 - 87.

Bradley JC. 1903. The Genus Platylabus, Wesmael, with descriptions of two new species. Can Entomol. 35 (10): 275 - 283. doi: 10.4039 / Ent 35275 b- 10.

Carlson RW. 1979. Family Ichneumonidae. In: Krombein KV, Hurd PD Jr., Smith DR, Burks BD, editors. Catalog of Hymenoptera in America North of Mexico. Vol 1. Washington (DC): Smithsonian Institution Press; p. 315 - 741.

Cresson ET. 1877. Notes on the species belonging to the subfamily Ichneumonides, found in America north of Mexico. Trans Am Entomol Soc. 6: 129 - 212. doi: 10.2307 / 25076321.

Cresson ET. 1887. Synopsis of the families and genera of the Hymenoptera of America, north of Mexico, together with a catalogue of the described species, and bibliography. Trans Am Entomol Soc, Supplementary Volume: 1 - 350.

Cresson ET. 1916. The Cresson types of Hymenoptera. Mem Am Entomol Soc. 1: 1 - 146.

Dalla Torre KW. 1902. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen 3. Trigonalidae, Megalyridae, Stephanidae, Ichneumonidae, Agriotypidae, Evaniidae, Pelecinidae. Lipsiae: Sumptibus Guilelmi Engelman; p. VIII + 1141.

Heinrich G. 1962 b. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the Northeastern Region (Hymenoptera). Part VI. Synopsis of the lchneumonini (Genus Plagiotrypes), Acanthojoppini, Listrodromini and Platylabini. Can Entomol. S 27: 677 - 802. doi: 10. 4039 / entm 9427 fv.

Hopper HP. 1984. On the question of the selector of the lectotypes of the species of Ichneumonidae describe by Ezra Townsend Cresson. Proc Entomol Soc Wash. 86: 968.

ICZN [International Commission on Zoological Nomenclature]. 1999. International code of Zoological nomenclature. Fourth edition. London (UK): The International Trust for Zoological Nomenclature; p. 306.

Johnson CW. 1927. The insect fauna with reference to the flora and other biological features. Philadelphia: The Wistar Institute of Anatamoy and Biology; p. 247.

Strickland EH. 1946. An annotated list of the Ichneumonoidea of Alberta. Can Entomol. 78 (2): 36 - 46. doi: 10.4039 / Ent 7836 - 2.

Townes HK. 1944. A catalogue and reclassification of the Nearctic Ichneumonidae. Part I. The subfamily Ichneumoninae, Tryphoninae, Crytinae, Phaeogeninae and Lissonotinae. Mem Am Entomol Soc. 11: 1 - 925.

Townes HK, Townes M. 1951. Family Ichneumonidae. In: Muesebeck CFW, Krombein KV, Townes HK, editors. Hymenoptera of America North of Mexico: Synoptic Catalog. Washington (DC): USDA; p. 1420.

Yu DSK, Horstmann K. 1997. A catalogue of world Ichneumonidae (Hymenoptera). Mem Am Entomol Ins. 58: 1 - 1558.

Yu D, Van Achterberg C, Horstmann K. 2016. Taxapad 2016, Ichneumonoidea 2015. Database on flash-drive. Nepean (Canada).