Revision of the Amphibolips species of the ‘ nassa’ complex from Mexico and central America (Hymenoptera: Cynipidae) Author Cuesta-Porta, Víctor 0000-0002-6616-904X Universitat de Barcelona, Facultat de Biologia, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Avda. Diagonal 645, 08028 - Barcelona, (Catalonia). & vcuesta @ ub. edu; https: // orcid. org / 0000 - 0002 - 6616 - 904 X vcuesta@ub.edu Author Equihua-Martínez, Armando 0000-0003-4392-3924 Instituto de Fitosanidad, Colegio de Postgraduados, 56230 Montecillo, Texcoco, Estado de México (Mexico). & equihuaa @ colpos. mx; https: // orcid. org / 0000 - 0003 - 4392 - 3924 equihuaa@colpos.mx Author Estrada-Venegas, Edith G. 0000-0003-1347-6369 Instituto de Fitosanidad, Colegio de Postgraduados, 56230 Montecillo, Texcoco, Estado de México (Mexico). & estradae @ colpos. mx; https: // orcid. org / 0000 - 0003 - 1347 - 6369 estradae@colpos.mx Author Cibrián-Tovar, David 0000-0001-6788-0178 División de Ciencias Forestales, Universidad Autónoma Chapingo, Km 38.5 Carretera México-Texcoco. Chapingo, Estado de México (México). & dcibrian 48 @ gmail. com; https: // orcid. org / 0000 - 0001 - 6788 - 0178 dcibrian48@gmail.com Author Barrera-Ruíz, Uriel M. 0000-0002-2451-807X División de Ciencias Forestales, Universidad Autónoma Chapingo, Km 38.5 Carretera México-Texcoco. Chapingo, Estado de México (México). Author Silva, Salvador Ordaz 0000-0001-6421-8314 Facultad de Ingeniería y Negocios „ San Quintín ”, Universidad Autónoma de Baja California, Mexicali (Mexico). Author Sánchez, Imelda Virginia López 0000-0002-1144-9378 Facultad de Ingeniería y Negocios „ San Quintín ”, Universidad Autónoma de Baja California, Mexicali (Mexico). Author Melika, George 0000-0002-5204-6890 Plant Health Diagnostic National Reference Laboratory, National Food Chain Safety Office, Budaörsi u. 141 - 145, 1118 Budapest, Hungary. Author Pujade-Villar, Juli 0000-0001-7798-2717 Universitat de Barcelona, Facultat de Biologia, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Avda. Diagonal 645, 08028 - Barcelona, (Catalonia). text Zootaxa 2020 2020-11-09 4877 1 1 50 journal article 8010 10.11646/zootaxa.4877.1.1 ce31448f-6b88-4b38-baaf-f02faee96256 1175-5326 4567340 84A56D01-FFCC-4D3B-95D8-36DA7AFEC0C7 Amphibolips oaxacae Nieves-Aldrey & Pascual Amphibolips oaxacae Nieves-Aldrey & Pascual, 2012 . In Nieves-Aldrey et al .2012: 14–16 . Material examined. HOLOTYPE . ♀ deposited in MNCN (Cat. nº 2249; Code: 89204). MEXICO , Oaxaca , S. Pe-dro Tapanatepec, 16º 22’ 34.40” N , 94º 04’ 43 11” W, 1300 masl ; Ex gall Quercus sp. aff. sapotifolia , ( 29.iii.2006 ) iii.2006 , leg. E. Pascual. Diagnosis. This species is characterized by completely infuscate forewing, with anterior infuscate band, including costal and proximal half of anal cells, radial cell uniformly infuscate ( Fig. 13F ); scutellar posterior depression deep, almost as broad as scutellar foveae ( Fig. 11I ). Besides the distinctive forewing pattern, adults closely resemble A. tarasco by less densely rugate mesoscutum in posteromedian margin. These species can be differentiated by their mesoscutellum: scutellar foveae ovate, median carina complete in A. oaxacae (foveae triangular with median carina reduced to anterior half of foveae and the rest is rugate in A. tarasco ), posteromedian depression almost as broad as total width of foveae (around half of total width of foveae in A. tarasco ) ( Figs 11 I–J). The globular gall resembles others but galls of A. oaxacae and A. tarasco are hard, around 40 mm in diameter, not deformable at finger pressure, with mottled surface. Both species cannot be differentiated by galls shape, only by the host plant: A. oaxacae galls on Quercus sp. aff. s apotifolia, A. tarasco galls on Q. castanea . Gall. A subglobose large bud gall, maximum 40 mm in diameter, outer shell thin, resistant, slightly lignified. Pale green with darker green spots when fresh and turning brown when dry. The gall is monolocular, with a spongy internal tissue, filling in the entire gall; the larval cell is rounded ( Nieves-Aldrey et al. 2012 : Fig. 18F). Host. Quercus sp. aff. sapotifolia (according to original description). Biology. Only females are known. The galls were collected in March; adults emerged in the same month. Distribution. Mexico : Oaxaca State . Remarks. Most closely resembles A. tarasco . Only one specimen of A. oaxacae is known and until more material is found it is impossible to sort out the intraspecific variability in this species. However, the actual differences that determine A. oaxacae are robust enough to consider it as a valid species.