Two events of predation on Ananteris spp. were observed in the Parque Nacional Darién, Darién Province, Panama. The first case involved the social wasp Agelaia centralis (Cameron, 1907) (Vespidae); the second one, a ponerine ant Leptogenys cf. cuneata Lattke, 2011 (Formicidae). This is the first time that predation by a social wasp on a scorpion is observed. They also represent the first recorded predators for Panamanian Ananteris species

Cambra, Roberto A.

de Armas, Luis F.

Miranda, Roberto

English

Marshall University

Predation of Ananteris spp. (Scorpiones: Buthidae) by ants and a social wasp (Hymenoptera: Formicidae, Vespidae) in Panama, Central AmericaRoberto J. Miranda, Luis F. de Armas & Roberto A. CambraJanuary 2021 — No. 329EuscorpiusOccasional Publications in Scorpiology EDITOR: Victor Fet, Marshall University, ‘fet@marshall.edu’ ASSOCIATE EDITOR: Michael E. Soleglad, ‘msoleglad@gmail.com’ TECHNICAL EDITOR: František Kovařík, ‘kovarik.scorpio@gmail.com’Euscorpius is the first research publication completely devoted to scorpions (Arachnida: Scorpiones). Euscorpius takes advantage of the rapidly evolving medium of quick online publication, at the same time maintaining high research standards for the burgeoning field of scorpion science (scorpiology). Euscorpius is an expedient and viable medium for the publication of serious papers in scorpiology, including (but not limited to): systematics, evolution, ecology, biogeography, and general biology of scorpions. Review papers, descriptions of new taxa, faunistic surveys, lists of museum collections, and book reviews are welcome. Derivatio Nominis The name Euscorpius Thorell, 1876 refers to the most common genus of scorpions in the Mediterranean region and southern Europe (family Euscorpiidae). Euscorpius is located at: https://mds.marshall.edu/euscorpius/Archive of issues 1-270 see also at: http://www.science.marshall.edu/fet/Euscorpius (Marshall University, Huntington, West Virginia 25755-2510, USA)ICZN COMPLIANCE OF ELECTRONIC PUBLICATIONS:Electronic (“e-only”) publications are fully compliant with ICZN (International Code of Zoological Nomenclature) (i.e. for the purposes of new names and new nomenclatural acts) when properly archived and registered. All Euscorpius issues starting from No. 156 (2013) are archived in two electronic archives: • Biotaxa,  http://biotaxa.org/Euscorpius (ICZN-approved and ZooBank-enabled)• Marshall Digital Scholar, http://mds.marshall.edu/euscorpius/. (This website also archives all Euscorpius issuespreviously published on CD-ROMs.)Between 2000 and 2013, ICZN did not accept online texts as “published work” (Article 9.8). At this time, Euscorpius was produced in two identical versions: online (ISSN 1536-9307) and CD-ROM (ISSN 1536-9293) (laser disk) in archive-quality, read-only format. Both versions had the identical date of publication, as well as identical page and figure numbers. Only copies distributed on a CD-ROM from Euscorpius in 2001-2012 represent published work in compliance with the ICZN, i.e. for the purposes of new names and new nomenclatural acts.In September 2012, ICZN Article 8. What constitutes published work, has been amended and allowed for electronic publications, disallowing publication on optical discs. From January 2013, Euscorpius discontinued CD-ROM production; only online electronic version (ISSN 1536-9307) is published. For further details on the new ICZN amendment, see http://www.pensoft.net/journals/zookeys/article/3944/.Publication date: 22 January 2021http://zoobank.org/urn:lsid:zoobank.org:pub:E230B233-E720-46CF-8447-F0FD74E8B5C4Euscorpius  - Occasional Publications in Scorpiology.  2021, No. 329ObservationsScorpions are predated by many vertebrates and arthropods (Polis et al., 1981; McCormick & Polis, 1990; Dupré, 2008; Lira et al., 2016; Rodríguez-Cabrera et al., 2020). Intraguild predation and cannibalism are an important factor in their population dynamics (Polis, 1981; Polis & McCormick, 1987). Among the hymenopterans, some ants (Formicidae) have been recorded as natural enemies of scorpions (Polis et al., 1981; Dupré, 2008), but there are no records of social wasps (Vespidae) predating on scorpions.While some prey items of the Panamanian scorpions have been recorded (Miranda et al., 2015), data on their natural enemies are largely lacking. Social wasps belonging to the genus Agelaia Lepeletier, 1836 (Vespidae) predate on several orders of insects, spiders, and terrestrial egg masses of some tree-frogs, although they also feed on carrion, nectar, and pollen (Warkentin, 2000; Oliveira et al., 2010; Carpenter et al., 2012); their predation on scorpions has not been recorded previously.We observed a social wasp Agelaia centralis (Cameron, 1907) eating an adult male of a small scorpion Ananteris sp. (cf. leilae) on a shrub, at 0.8 m above the ground, near Rancho Frío Station (08°02'N 77°43'W, approximately 100 m a. s. l.), on the trail to Cerro Pirre, Parque Nacional Darién,Darién Province, Panama, on August 02, 2002, at 09:00 hrs (Figs. 1–4). The wasp and its prey were collected with an entomological net and preserved in 75% ethanol.The second observed event of predation involved ponerine ants. We observed an adult female of Ananteris sp. (cf. platnicki) that was carried, immobile, by six workers of Leptogenys cf cuneata Lattke, 2011 (Formicidae: Ponerinae), in the forest litter, in Cana (07°45'27.6"N 77°39'03.7"W, 500 m a. s. l.), Parque Nacional Darién, Darién Province, on April 07, 1991, around 10:00 hrs (Figs. 5–6). The scorpion and the ants were collected and preserved in ethanol 75%.Ponerine ants of the genus Leptogenys Roger are mostly of pantropical distribution (Bolton, 1995). The Neotropical L. cuneata is known from Peru, Ecuador (type locality),Colombia, and Panama (Bocas del Toro Province), but dataon its feeding behavior are lacking (Lattke, 2011). It is knownthat some Leptogenys ants predate on arthropods (insects,millipedes, centipedes, isopods), although other invertebrates(planarians, snails) and rarely small frogs and snakes may beincluded in their diet (Wheeler, 1904; Lenko, 1966; Maschwitzet al., 1989; Steghaus-Kovac & Maschwitz, 1993; Peeters &De Greef, 2015).Other ponerine ants, Dinoponera quadriceps Kempf, 1971 and Ectatomma planidens Borgmeier, 1939, have been recorded that prey on Tityus stigmurus (Thorell, 1876) and Ananteris mauryi Lourenço, 1982, respectively (Santos et al., 2017; Dionisio-da-Silva & Lira, 2019).Army ants belonging to the subfamilies Ecitoninae and Dorylinae are well-known predators of several invertebrates and vertebrates. For example, the Neotropical Eciton burchellii (Westwood, 1842) have been recorded as predator of Amblypygi, Araneae, Opiliones, Schizomida, Scorpiones, Predation of Ananteris spp. (Scorpiones: Buthidae) by ants and a social wasp (Hymenoptera: Formicidae, Vespidae) in Panama, Central AmericaRoberto J. Miranda1, Luis F. de Armas2 & Roberto A. Cambra31 Departamento de Investigación en Entomología Médica, Instituto Conmemorativo Gorgas de Estudios de   Salud, Ciudad de Panamá, República de Panamá. E-mail: mirandarjc@gmail.com 2 P.O. Box 4327, San Antonio de los Baños, Artemisa 38100, Cuba. E-mail: luisdearmas1945@gmail.com3 Museo de Invertebrados G. B. Fairchild, Estafeta Universitaria Apartado 00017, Universidad de Panamá,   Ciudad de Panamá 0824, República de Panamá. E-mail: cambramiup60@gmail.comhttp://zoobank.org/urn:lsid:zoobank.org:pub:E230B233-E720-46CF-8447-F0FD74E8B5C4SummaryTwo events of predation on Ananteris spp. were observed in the Parque Nacional Darién, Darién Province, Panama. The first case involved the social wasp Agelaia centralis (Cameron, 1907) (Vespidae); the second one, a ponerine ant Leptogenys cf. cuneata Lattke, 2011 (Formicidae). This is the first time that predation by a social wasp on a scorpion is observed. They also represent the first recorded predators for Panamanian Ananteris species. 2 Euscorpius  - 2021, No. 329Figures 1–6: Figures 1–4. Ananteris sp. (cf. leilae). Adult male (1–3) from Panama, Darién Province, Cerro Pirre, Rancho Frío Station, predated by a forager wasp Agelaia centralis (4). Photo ex situ. Figures 5–6. Ananteris sp. (cf. platnicki) Adult female from Panama, Darién Province, Cana predated by six workers of the ant Leptogenys cf. cuneata (5), detail of the damage (arrow) that the ants probably inflicted on the scorpion pleura (6). Photo ex situ.Miranda, Armas & Cambra: Predation of Ananteris spp. by ants and a social wasp  3Thelyphonida, and mites, whereas species of those arachnid orders, except Amblypygi, were also cited as prey of Labidus praedator (Smith, 1858) (Vieira & Höfer, 1994).The only mention of natural enemies of Panamanian scorpions is that by E. Willis in Heatwole (1967: 17), who reported predation of unidentified species by the army ant E. burchellii in Barro Colorado Island. Therefore, the two herein recorded events of predation represent the first such known cases for Panamanian species of Ananteris. This is, also, the first record of a social wasp (Vespidae) predating on a scorpion.AcknowledgmentsVoucher specimens of both events of predation are deposited in the Museo de Invertebrados G. B. Fairchild (MIUP), Escuela de Biología, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panama City.We are very grateful to J. M. Carpenter (American Museum of Natural History, New York, USA) for identification of the wasp. John E. Lattke (Universidade Federal do Paraná, Brazil) helped to identify the ants to the genus level.ReferencesBOLTON, B. 1995. A taxonomic and zoogeographical census of the extant ant taxa (Hymenoptera: Formicidae). Journal of Natural History, 29(4): 1037–1056.CARPENTER, J. M., B. R. GARCETE-BARRETT & J. A. F. LOPEZ. 2012. Las Vespidae (Hymenoptera: Vespoidea) de Guatemala. Pp. 269–279 in Cano, E. B. & J.C. Schuster (eds.), Biodiversidad de Guatemala. Volumen 2. Universidad del Valle de Guatemala, Guatemala, Guatemala.DIONISIO-DA-SILVA, W. & A. F. A. LIRA. 2019. Record of Ananteris mauryi (Scorpiones: Buthidae) preyed upon by Ectatomma planidens (Hymenoptera: Formicidae) in the Brazilian Atlantic Rainforest. Entomological News, 128(5): 497–503.DUPRÉ, G. 2008. Les prédateurs des scorpions (Arachnida: Scorpiones). Arachnides. Bulletin de Terrariophile et de Recherche, 54: 9–23.HEATWOLE, H. 1967. Defensive behaviour of some Panamanian scorpions. Caribbean Journal of Science, 7(1–2): 15–17.LATTKE, J. E. 2011. Revision of the New World species of the genus Leptogenys Roger (Insecta: Hymenoptera: Formicidae: Ponerinae). Arthropod Systematics & Phylogeny, 69(3): 127–264.LENKO, K. 1966. A formiga Leptogenys bohlsi como predadora de isopodos (Hymenoptera: Formicidae). Papéis Avulsos (São Paulo), 19: 59–61.LIRA, A. F. A., V. L. N. DE ARAÚJO, C. M. RIBEIRO DE ALBUQUERQUE. 2016. 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Predation of \u3cem\u3eAnanteris\u3c/em\u3e spp. (Scorpiones: Buthidae) by ants and a social wasp (Hymenoptera: Formicidae, Vespidae) in Panama, Central America

https://mds.marshall.edu/cgi/viewcontent.cgi?article=1362&amp;context=euscorpius

Predation of \u3cem\u3eAnanteris\u3c/em\u3e spp. (Scorpiones: Buthidae) by ants and a social wasp (Hymenoptera: Formicidae, Vespidae) in Panama, Central America

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