Update distribution of the mud-dauber wasp Sceliphron fistularium (Dahlbom, 1843) (Hymenoptera: Sphecidae) in South America with new records Author Ceccolini, Filippo text Revista Chilena de Entomología 2023 Rev. Chil. Entomol. 2023-02-28 49 1 83 91 http://dx.doi.org/10.35249/rche.49.1.23.10 journal article 10.35249/rche.49.1.23.10 0718-8994 13367622 E13C4187-AC93-4452-97F0-894401D69069 Sceliphron fistularium ( Dahlbom, 1843 ) ( Figs. 1-3 ) Material examined. Guyana . Upper Demerara-Berbice : Linden , MacKenzie , 1931-1932, 2 specimens , N. Beccari expedition legit, MZUF . Venezuela . Miranda : Sucre , 10.508602° N - 66.791687° E (un. not recorded), 3.I.2021 , 1 specimen , photo by Fernando Nunes (IN) . Colombia . Vaupés : Mitù , 1.252174° N - 70.233618° E (un. = 2.26 km ), 28.I.2022 , 1 specimen , photo by Jonathan Newman (IN) . Ecuador . Azuay : Nabón , - 3.20222° N - 79.036674° E (un. = 488 m ), 6.I.2022 , 1 specimen , photo by Rudy Gelis (IN) . Orellana : Joya de los Sachas , - 0.314624° N - 76.796984° E (un. = 244 m ), 1. VI .2010 , 1 specimen , photo by David Torres (IN); Parque Nacional YasunÍ, - 0.524485° N - 76.439879° E (un. = 21 m ), 1.II.2019 , 1 specimen , photo by Laurent Hesemans (IN) . ManabÍ : Chone , - 0.70846° N - 80.198502° E (un. = 8 m ), 2.XI.2021 , 1 specimen , photo by David Torres (IN) . Napo : Tena , - 0.962877° N - 77.860893° E (un. = 15 m ), 9. V .2018 , 1 specimen , photo by Graham Wise (IN) ( Fig. 1 ) . Peru . Ayacucho : Huamanga , - 13.080459° N - 74.240028° E (un. = 100 m ), 2.I.2022 , 1 specimen , photo by “cristhian_cuchuri02” (IN); La Convención : - 12.932529° N - 73.531301° E (un. = 7 m ), 30.IV.2022 , 1 specimen , photo by Floro Ortiz Contreras (IN) . Cusco : Paucartambo , - 12.889489° N - 71.35974° E (un. = 4 m ), 17.X.2019 , 1 specimen , photo by Jared Shorma (IN) . Brazil . Alagoas : Murici , - 9.2061° N - 35.8688° E (un. = 100 m ), 8.XI.2019 , 1 specimen , photo by “deboas” (IN) . Distrito Federal : BrasÍlia , Asa Norte , - 15.743313° N - 47.885113° E (un. = 61 m ), 1.IV.2022 , 1 specimen , photo by Silvio Wolff /IN); idem , SQN 415 Bloco F , - 15.739326° N - 47.886455° E (un = 357 m ), 9.I.2021 , 1 specimen , photo by Krishna Bonavides (IN); idem , 12 - St. de Habitações Individuais Norte QL 5 - Lago Norte, - 15.729339° N - 47.85887° E (un. = 50 m ), 11.IV. 2018 , 1 specimen , photo by “douglas-u-oliveira” (IN) . Paraguay . Amambay : Pedro Juan Caballero , Parque Nacional de Cerro Cora , - 22.65058° N - 56.018192° E (un. not recorded), 17.XI.2019 , 1 specimen , photo by “solmnb” (IN) . Central : Areguá , San Miguel , - 25.292842° N - 57.376465° E (un. = 8 m ), 22.III.2008 , 1 specimen , photo by Emilio Buongermini (IN) . Uruguay . Canelones : Santa Lucia , Picada Alaniz , - 34.478791° N - 56.402751° E (un. = 36 m ), 27.III.2020 , 1 specimen , photo by Guillermo Menéndez (IN) ( Fig. 2 ) . Cerro Largo : Melo , - 32.366152° N - 54.188583° E (un. = 306 m ), 26.III.2022 , 1 specimen , photo by Luis Vescia da Rosa (IN) . Rocha : Arroyo Valizas , - 34.343467° N - 53.78924° E (un. not recorded), 16.III.2022 , 1 specimen , photo by Martin Abreu (IN) . Argentina . Santa Fe : La Capital , - 31.636241° N - 60.673648° E (un. = 173 m ), 14.II.2014 , 1 specimen , photo by Gustavo Fernando Durán (IN) ( Fig. 3 ) . In some countries the occurrence records of S. fistularium were limited so far, but since the species is widespread in the continent such lacking data seems to be an absence of research. With the present work S. fistularium are recorded for the first time in the following new regions: Upper Demerara-Berbice ( Guyana ), Miranda ( Venezuela ), Vaupés ( Colombia ), Azuay , Orellana , ManabÍ , and Napo ( Ecuador ), Ayacucho and Cusco ( Peru ), Alagoas and Distrito Federal ( Brazil ), Amambay and Central ( Paraguay ), Canelones and Cerro Largo ( Uruguay ), and Santa Fe ( Argentina ). The occurrence of the species in these regions confirmed that S. fistularium is widely distributed in large part of South America ( Fig. 4 ). Figures 1-4. Sceliphron fistularium . 1. Specimen from Tena, Napo (Ecuador) (photo Graham Wise). 2. Specimen from Santa Lucia, Canelones (Uruguay) (photo Guillermo Menéndez). 3. Specimen from Fernando Durán, Santa Fe (Argentina) (photo Fernando Durán). 4. Updated distribution of Sceliphron fistularium in South America. Orange colored: areas where the species is known; green colored: areas where the species is not known so far. / 1. Espécimen de Tena, Napo (Ecuador) (foto Graham Wise). 2. Espécimen de Santa Lucia, Canelones (Uruguay) (foto Guillermo Menéndez). 3. Espécimen de Fernando Durán, Santa Fe (Argentina) (foto Fernando Durán). 4. Distribución actualizada de Sceliphron fistularium en América del Sur. Color naranja: áreas donde se conoce la especie; color verde: áreas donde aún no se conoce la especie. The present work provides information which increases the knowledge of the distribution of this species in the nation. For example, before this work in Ecuador and Uruguay the occurrence of this mud-dauber wasp was documented in only one region. For Guyana the only record with precise locality was reported so far by Van der Vecht and Van Breugel (1968) from Cuyuni-Mazaruni , which is a territory claimed by Venezuela . Anyway, in the Guyana the species is likely most abundant and some works cited the species in the country, although without exact locality ( Erichson 1849 ; Bodkin 1918 ), and according to Richards (1937) it is “common on the costal plain”. Although S. fistularium is a common and widespread species in the continent, further research will be needed to ascertain its detailed distribution, since in several countries the available records are quite poor and scattered and so far no records are from Chile .