Discovery of the primary aphid (Hemiptera: Aphidomorpha) and scale insect (Hemiptera: Coccomorpha) type specimens from the collection of Theodor Hartig (1805 - 1880) Author Brunet, Bryan M. T. 0000-0001-5083-9662 Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, 960 Carling Avenue, Ottawa, Ontario K 1 A 06 C, & bryan. brunet @ agr. gc. ca; https: // orcid. org / 0000 - 0001 - 5083 - 9662 bryan.brunet@agr.gc.ca Author Raupach, Michael J. 0000-0001-8299-6697 Sektion Hemiptera, Bavarian State Collection of Zoology (SNSB - ZSM), Münchhausenstrasse 21, 81247 München, Germany. raupach @ snsb. de; https: // orcid. org / 0000 - 0001 - 8299 - 6697 raupach@snsb.de Author Rehage, Heinz-Otto 0009-0005-2193-2362 LWL-Museum für Naturkunde mit Planetarium, Sentruper Strasse 285, 48161 Münster, Germany. https: // orcid. org / 0009 - 0005 - 2193 - 2362 Author Havill, Nathan P. United States Department of Agriculture - Forest Service, Northern Research Station, 51 Mill Pond Road, Hamden, Connecticut Author Foottit, Robert G. 0000-0001-6957-2092 Agriculture and Agri-Food Canada, Ottawa Research and Development Centre, 960 Carling Avenue, Ottawa, Ontario K 1 A 06 C, & robert. foottit @ agr. gc. ca; https: // orcid. org / 0000 - 0001 - 6957 - 2092 robert.foottit@agr.gc.ca text Zootaxa 2023 2023-11-08 5369 1 89 116 https://www.mapress.com/zt/article/download/zootaxa.5369.1.4/52230 journal article 10.11646/zootaxa.5369.1.4 1175-5326 10144745 B0A58448-FE3B-4F2A-B876-E6EE2D95A89F Aphis pyri Hartig, 1841 Aphis pyri Hartig, 1841: 369 . SYNTYPES : 6 (field no. missing [7.19], 1 lost). Dysaphis pyri ( Boyer de Fonscolombe, 1841 ) (senior primary homonym— Hottes, 1930a: 182 ; Eastop, 1974: 164 ; Melville, 1981: 239 ). Sappaphis mali ( Ferrari, 1872 ) (junior synonym—Börner, 1952: 98). Dysaphis ( Pomaphis ) plantaginea ( Passerini, 1860 ) (junior synonym— Doncaster , 1973: 61 ). Valid Specimens. Six pointed on a single pin. All present (five) are alates. Remarks. Hottes (1930a) identified the priority of Aphis pyri Kittel, 1827 over Aphis pyri Hartig , Aphis pyri Boyer de Fonscolombe, 1841 and Aphis pyri Koch, 1854 , but maintained Hartig’s name because the species to which it applied could not be verified on account of the lack of type specimens. Eastop (1974) petitioned the ICZN to have both A. pyri Kittel and the name Aphis pyri Vallot, 1802 supressed in favor of Boyer de Fonscolombe’s name, and the decision to conserve the latter was published by Melville (1981) . In regard to the conflict of the latter with Hartig’s name, as with other conflicts between Hartig and Boyer de Fonscolombe’s names mentioned earlier, A. pyri Boyer de Fonscolombe has priority over A. pyri Hartig. Since both species are presently treated as congeneric, the next oldest available synonym for A. pyri Hartig is Myzus plantagineus [= Dysaphis plantaginea ] Passerini, 1860 . Upon determination of Hartig’s holotype , if the synonymy with the latter species is not supported, a replacement name may be necessary to remove it from homonymy with A. pyri Boyer de Fonscolombe since no other synonyms are available. Favret (2023) lists the name Lachnus pyri ( Hartig, 1841 ) from Rudow (1875) in the nomenclatural history for Aphis pyri Hartig. However, Rudow (1875) made reference to this name in association with the wrong host species, Prunus padus . We believe Rudow’s (1875) use of the name Lachnus pyri was in error and that the intended species was actually Lachnus padi ( Hartig, 1841 ) (see below).