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Nota Note www.biotaxa.org/RSEA. ISSN 1851-7471 (online) Revista de la Sociedad Entomológica Argentina 80(1): 96-99, 2021 The genus Xenogenus Berg, 1883 (Heteroptera: Rhopalidae) in Chile FAÚNDEZ, Eduardo I.1 & CAMPODÓNICO, Juan F.2,3,* 1 Laboratorio de Entomología y Salud Pública, Instituto de la Patagonia, Universidad de Magallanes. Punta Arenas, Chile. 2 Programa de Doctorado en Ciencias mención Ecología y Evolución, Escuela de Graduados, Facultad de Ciencias, Universidad Austral de Chile. Valdivia, Chile. * E-mail: [email protected] 3 Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile. Valdivia, Chile. Received 20 - XI - 2020 | Accepted 21 - I - 2021 | Published 29 - III - 2021 https://doi.org/10.25085/rsea.800112 El géneroXenogenusBerg, 1883 (Heteroptera: Rhopalidae) en Chile RESUMEN. Se aborda la distribución de las especies de Xenogenus Berg en Chile. La distribución conocida de Xenogenusgracilis(Reed), previamente limitada a la región de O’Higgins (además de Argentina, Bolivia, Brasil y Perú), se expande hasta las regiones de Tarapacá y de Los Ríos.XenogenuspictoratumBerg (previamente conocido en Argentina, Bolivia,Cuba,México,Nicaragua,UruguayyEE.UU.incluyendoPuertoRico)seregistrapor primera vez en el país, en las regiones Metropolitana y del Maule. PALABRAS CLAVE.Coreoidea.Faunística.Hemiptera.Nuevos registros. ABSTRACT. The distribution of the species of Xenogenus Berg in Chile is addressed. The known distribution ofXenogenusgracilis(Reed), previously restricted to the O’Higgins region (besides Argentina, Bolivia, Brazil and Peru), is expanded up to Tarapacá and Los Ríos regions.XenogenuspicturatumBerg (previously known from Argentina, Bolivia, Cuba, Mexico,Nicaragua,UruguayandUSAincludingPuertoRico)isrecordedforthefirsttimein Chile, in the Metropolitan and Maule regions. KEYWORDS.Coreoidea.Faunistics.Hemiptera.New records. Rhopalidae, commonly known as scentless plant gracilis(Reed, 1899) which was described from Baños bugs is a family of phytophagous heteropterans that de Cauquenes, O’Higgins region. After that, no currentlycomprises236speciesclassifiedin26genera additional references on this genus have been (Coreoidea Species File, 2021). This family was for a published in the country (Melo & Montemayor, 2016). long time considered a subfamily of Coreidae until The purpose of this contribution is to provide new Chopra(1967)gaveitfamilyrank.Severalrhopalidsare distributional records for X.gracilisin Chile as well as considered to have an economic importance, because the first records of XenogenuspicturatumBerg in the theyfeedoncrops;however,witharelativelylowimpact country. (Schaefer & Kotulski, 2000). In Chile this family is Photos were taken with a digital camera adapted to represented by 15 species classified in six genera astereoscopicmicroscope.Mapsweredevelopedwith (Faúndez, 2016;Faúndez et al., 2020). QGIS. The collections cited in the text are from Museo XenogenusBerg is a bispecific genus of scentless Entomológico Luis Peña, Departamento de Sanidad plant bugs, widely distributed in the Americas (Diez & Vegetal,UniversidaddeChile[MEUC],andHeteroptera Coscarón, 2015; Melo & Montemayor, 2016). In Chile, Reference Collection of the CEBCh [HRCC]. to date, this genus is represented just by Xenogenus Copyright FAÚNDEZ, E.I. & CAMPODÓNICO, J.F.- This is an open access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0) 96 Revista de la Sociedad Entomológica Argentina 80(1): 96-99, 2021 Xenogenus gracilis(Reed, 1899)(Figs. 1A,1B,2A) Xenogenus picturatum Berg, 1883 (Figs. 1C, 1D, 2B) (Harmostes gracilisReed, 1899) (=Xenogenus extensusDistant, 1893) This species is currently distributed in Argentina, (=Darmistidius maculatusUhler, 1893) Bolivia, Brazil, Chile and Peru towards the Andes This species is the most widely distributed in the mountains (Gollner-Scheiding, 1980; Diez & Coscarón, genus Xenogenus , recorded from Argentina, Bolivia, 2015; Melo & Montemayor, 2016). In Chile, so far, it is Cuba, Mexico, Nicaragua, Uruguay and USA (including known just from the type locality Baños de Cauquenes Puerto Rico) (Gollner-Scheiding, 1980; Diez & O’Higgins region. Here we provide the first records for Coscarón, 2015; Melo & Montemayor, 2016). Here we Tarapacá, Coquimbo, Metropolitan and Los Ríos provide the first records from Chile. regions. Material examined: Chile Metropolitan Region, Maipú, Material examined: Chile: Tarapacá region: Mamiña, Quebrada de la Plata, 33º 29' S. 70º 53' W. 520 m, 4. XI. II-2016, J. F. Campodonico leg., 2♂♂ [HRCC]; 2015, J. F. Campodonico leg., 2♂♂ [1 MEUC, 1 Mamiña, 29-IX-1967, R. Charlin leg., 1♂ [MNNC]; La HRCC]; Chile, Metropolitan Region, El Alfalfal, I II-2009, Tirana, II-2016 J. F. Campodonico leg., 1♀ [HRCC]; R. Perez de Arce leg. 1♂1♀ [HRCC] Maule región: Coquimbo region: Llanos de la Higuera, Ruta 5 Norte, Armerillo, 35º42' S. 71º05' W. 500 m., I I-2015, J. F. Km 537, 11-X-2015, J. F. Campodonico leg, 1♂ Campodonico leg., 1♂ [HRCC]; Quinamavida, 13- [HRCC]; Vicuña, 4-X-1966, R. Charlin leg. 1♀ [MEUC] XI-1966, R. Charlin leg., 1♂2♀♀ [MEUC]. Metropolitan region: Maipú, Quebrada de la Plata, Remarks. Xenogenus species are hard to identify 33º29'S. 70º53'W. 520m, 4-XI-2015, J. F. Campodonico because of their variability; however, male genitalia leg., 2♂♂ [1MEUC,1HRCC]; Rinconada de Maipú, 19- characters are strongly useful (Gollner-Scheiding, 1980, II-1963, R. Charlin leg., 1♀ [MEUC]; Rinconada de Diez & Coscarón, 2015; Fig. 1). Furthermore, to identify Maipú, IV-1963, R. Charlin leg., 1♀ [MEUC]; Rinconada females, these are usually just associated with males de Maipú, 29-I-1956, R. H. González leg., 1♀ [MEUC]; correctly identified using genitalia (Diez & Coscarón, Los Ríos region: Pirihueico Lake, 20-I-2011, R. Perez de 2015). The presence of X. picturatum in Chile is not rare Arce leg.,1♂ [HRCC]. as it is widely present in the surrounding countries. Fig. 1.Xenogenus gracilis: A.habitus. B. male genitalia;X. picturatum: C.habitus.D. male genitalia. 97 FAÚNDEZ, E.I. & CAMPODÓNICO, J.F.Xenogenusin Chile Fig. 2. Records ofXenogenus gracilis(A) andXenogenus picturatum(B) in Chile.Geodetic datum WGS 84. Although the new records here provided extend ACKNOWLEDGEMENTS considerably the distribution of both species, there are still several distributional gaps that may have been JFC is beneficiary of the scholarship ANID-PFCHA influenced by the lack of collecting, or hard climates in 2019-21190918 for National Doctoral studies. the Atacama Desert (the most arid desert in the world). Therefore, further prospection is needed to totally elucidate the whole distribution of these species in the LITERATURE CITED country. Finally, with the recent introduction of the North Chopra, N.P. (1967) The higher classification of the Family American Box elder bug, Boisea trivittata (Say) (Faúndez Rhopalidae (Hemiptera). Transactions of the Royal et al., 2020), the Rhopalidae diversity of Chile included Entomological Society of London,111199, 363-399. 15 species in six genera. With the new addition of X. picturatum, the number of species rises to 16. 98 Revista de la Sociedad Entomológica Argentina 80(1): 96-99, 2021 CoreoideaSpeciesFile(2021)CoreoideaSpeciesFileOnline. Göllner-Scheiding, U. (1980) Einige bemerkungen zu den Version 5.0/5.0. Accessed on Jan 18, 2021. Available at gattungenCorizusFallén,1814,undXenogenusBerg,1883 http://Coreoidea.SpeciesFile.org (Heteroptera, Rhopalidae). Mitteilungen aus dem Zoologischen Museum in Berlin,5544, 111-121. Diez,F.,&Coscarón,M.C.(2015)Contributiontotheknowledge of Patagonia, Argentina: redescription of the genus Melo, M.C., & Montemayor, S.I. (2016) Biodiversity of the Xenogenus Berg 1883 (Hemiptera: Heteroptera: scentless plant bugs (Hemiptera: Rhopalidae) in southern Rhopalidae) and description of immature stages of South America.Journal of Natural History,5500((33--44)), 163-200. Xenogenus gracilisReed, 1899.Zootaxa,33991199((33)), 573-582. Reed,E.C.(1899)SinopsisdelosHemípterosdeChile,Primera Faúndez, E.I. (2016) The Coreoidea Leach, 1815 (Hemiptera: parte (continuación). RevistaChilenadeHistoriaNatural, Heteroptera) of Magallanes Region: Checklist and 33((44)), 37-49. identification key to the species.AnalesdelInstitutodela Schaefer, C.W., & Kotulski, J. (2000) Plant scentless bugs Patagonia,4444((11)), 39-42. (Rhopalidae). Heteroptera of Economic Importance. (ed. Faúndez,E.I.,Carvajal,M.A.,&Sarmiento,C.(2020)Detection Schaefer, C.W., & Panizzi, A.R.), pp. 309-319. CRC press, of the Box elder bug Boisea trivittata (Say, 1825) Boca Raton. (Heteroptera: Rhopalidae) in Chile. Heteroptera Poloniae Acta Faunistica,1144, 125-126. 99