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Type: Article
Published: 2025-10-07
Page range: 531-546
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Review of Placocoris Mayr, 1864 (Hemiptera: Pentatomidae: Discocephalinae: Ochlerini)

1 Universidade Federal do Rio Grande do Sul; Instituto de Biociências; Departamento de Zoologia; Av. Bento Gonçalves 9500; 91501- 970 Porto Alegre; RS; Brazil
1 Universidade Federal do Rio Grande do Sul; Instituto de Biociências; Departamento de Zoologia; Av. Bento Gonçalves 9500; 91501- 970 Porto Alegre; RS; Brazil
Hemiptera moneda bug stink bug taxonomy

Abstract

Placocoris Mayr, 1864 (Pentatomidae: Discocephalinae) is a Neotropical genus with two known species, Placocoris viridis Mayr, 1864 and Placocoris albovenosus Kormilev, 1949. Placocoris is easily distinguished from other Neotropical pentatomids by having a strongly flat body, and armed femora. The genus was recently transfered to the tribe Ochlerini based on morphological similarities with the genera in the Janeirona Distant, 1911 clade. In this study we review Placocoris, describing for the first time the internal genitalia of the two species. We highlight the peculiar sexual dimorphism of the hind femora in both species. A distribution map is provided.

 

References

  1. Bergroth, E. (1908) Enumeratio Pentatomidarum post catalogum bruxellensem descriptarum. Mémoires de la Société entomologique de Belgique, 15, 131–200.
  2. Breddin, G. (1903) Beitrage zur Hemipteren-fauna der Andes. Sitzungberichte der Gesellschaft Naturforschender freunde zu Berlin, 1903, 366–383. https://doi.org/10.5962/bhl.part.29867
  3. Cervantes-Peredo, L. & Ortega-León, G. (2014) Description of a new species of Neoadoxoplatys and immature stages of Neoadoxoplatys saileri Kormilev (Heteroptera: Pentatomidae) associated with bamboo. Neotropical entomology, 43, 236–244. https://doi.org/10.1007/s13744-014-0203-3
  4. Coscarón, M.D.C. (2017) A catalogue of the Heteroptera (Hemiptera) or true bugs of Argentina. Zootaxa, 4295 (1), 1–432. https://doi.org/10.11646/zootaxa.4295.1.1
  5. Costa Lima, A. (1940) Insetos do Brasil. Tomo 2. Capítulo 22. Hemípteros. Escola Nacional de Agronomia, Rio de Janeiro, 351 pp. https://doi.org/10.5962/bhl.title.97953
  6. De Marschall, A. (1873) Nomenclator Zoologicus: continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita. Typis Caroli Ueberreuter, 482 pp. https://doi.org/10.5962/bhl.title.1216
  7. Distant, W.L. (1899) XX—Rhynchotal notes—Heteroptera: Plataspinae, Thyreocorinae, and Cydninae. Annals and Magazine of Natural History, Series 7, 4 (21), 213–227. https://doi.org/10.1080/00222939908678187
  8. Distant, W.L. (1901) II.—Rhynchotal notes.—VIII. Heteroptera: Fam. Coreidæ. Annals and Magazine of Natural History, Series 7, 7 (37), 6–22. https://doi.org/10.1080/00222930108678432
  9. Distant, W.L. (1911) Rhynchotal notes.—LIV. Pentatomidae from various Regions. Annals and Magazine of Natural History, Series 8, 7 (40), 338–355. https://doi.org/10.1080/00222931108692948
  10. Emberts, Z., Hwang, W.S. & Wiens, J.J. (2021) Weapon performance drives weapon evolution. Proceedings of the Royal Society B, 288, 20202898. https://doi.org/10.1098/rspb.2020.2898
  11. Froeschner, R.C. (1960) Cydnidae of the western hemisphere. Proceedings of the United States National Museum, 111, 337–680. https://doi.org/10.5479/si.00963801.111-3430.337
  12. Froeschner, R.C. (1995) Nicholas A. Kormilev: A list of his entomological publications and proposed taxa. Proceedings of the Entomological Society of Washington, 97, 515–547.
  13. Grazia, J. & Schwertner, C.F. (2008) Pentatomidae. In: Roig-Juñent, S., Claps, L. & Debandi, G. (Dir.), Biodiversidad de Artrópodos Argentinos. Vol. 2. Sociedad Entomológica Argentina, Mendoza, pp. 223–234.
  14. Kirkaldy, G.W. (1909) Catalogue of the Hemiptera (Heteroptera) with biological and anatomical references, lists of foodplants and parasites, etc. Vol. I. Cimicidae. F.L. Dames, Berlin, XL + 392 pp. https://doi.org/10.5962/bhl.title.15205
  15. Kment, P. & Vilímová, J. (2010) Thoracic scent efferent system of Pentatomoidea (Hemiptera: Heteroptera): A review of terminology. Zootaxa, 2706 (1), 1–77. https://doi.org/10.11646/zootaxa.2706.1.1
  16. Kment, P., Eger, J.E. & Rider, J.D.A. (2018) Review of the Neotropical genus Rhyncholepta with descriptions of three new species-group taxa (Hemiptera, Heteroptera, Pentatomidae). ZooKeys, 796, 347–395. https://doi.org/10.3897/zookeys.796.22517
  17. Konstantinov, F.V. & Gapon, D.A. (2005) On the structure of the aedeagus of shield bugs (Heteroptera, Pentatomidae): 1. Subfamilies Discocephalinae and Phyllocephalinae. Entomological Review, 85, 221–235. https://doi.org/10.1134/S0013873806070050
  18. Kormilev, N.A. (1949) Una especie nueva del género Placocoris Mayr en la Argentina (Hemiptera, Pentatomidae). Comunicaciones del Instituto Nacional de Investigación de las Ciencias Naturales, 1, 1–12.
  19. Kormilev, N.A. (1956) Notas sobre Pentatomoidea Neotropicales V (Hemiptera). Acta Scientifica de los Institutos de Investigacioón San Miguel, 4, 1–7.
  20. Lethierry, L. & Severin, G. (1869) Catalogue général des hémiptères. Tome III. Hétéroptères. Hayez, Brussels.
  21. Link, D. & Grazia, J. (1987) Pentatomídeos da região central do Rio Grande do Sul (Heteroptera). Anais da Sociedade Entomológica do Brasil, 16, 115–129. https://doi.org/10.37486/0301-8059.v16i1.466
  22. Mayr, G.L. (1864) Diagnosen neuer Hemipteren. Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien, 14, 903–914.
  23. Melo, M.C., Dellapé, G., Olivera, L., Varela, P.S., Montemayor, S.I. & Dellapé, P.M. (2017) Diversity of true bugs from Iguazú National Park, Argentina. Check List, 13, 479–511. https://doi.org/10.15560/13.5.479
  24. Morrone, J.J., Escalante, T., Rodríguez-Tapia, G., Carmona, A., Arana, M. & Mercado-Gómez, J.D. (2022) Biogeographic regionalization of the Neotropical region: New map and shapefile. Anais da Academia Brasileira de Ciências, 94, e20211167. https://doi.org/10.1590/0001-3765202220211167
  25. Miyatake, T. (1995) Territorial mating aggregation in the bamboo bug, Notobitus meleagris, Fabricius (Heteroptera: Coreidae). Journal of Ethology, 13, 185–189. https://doi.org/10.1007/BF02350111
  26. Miyatake, T. (2002) Multi-male mating aggregation in Notobitus meleagris (Hemiptera: Coreidae). Annals of the Entomological Society of America, 95, 340–344. https://doi.org/10.1603/0013-8746(2002)095[0340:MMMAIN]2.0.CO;2
  27. Redtenbacher, L., Sichel, J., Mayr, G.L. & Brauer, F. (1868) Reise der österreichischen Fregatte Novara um die Erde: in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Vol. 1. In Commission Bei Karl Gerold’s Sohn, Wien, XII + 368 pp., VII pls., 37 pp., chart, map.
  28. Rider, D.A., Schwertner, C.F., Vilímová, J., Rédei, D., Kment, P. & Thomas, D.B. (2018) Higher systematics of the Pentatomoidea. In: McPherson, J.E. (Ed.), Invasive Stink Bugs and related species (Pentatomoidea): Biology, Higher Systematics, Semiochemistry, and Management. CRC Press, Boca Raton, Florida, pp. 25–201. https://doi.org/10.1201/9781315371221-2
  29. Roell, T. & Campos, L.A. (2019) Phylogeny of Ochlerini (Hemiptera: Pentatomidae: Discocephalinae) and the evolution of the apical tarsomere in hind legs. Zoological Journal of the Linnean Society, 185, 1137–1149. https://doi.org/10.1093/zoolinnean/zly073
  30. Rolston, L.H. (1976) An evaluation of the generic assignment of some American Pentatomini (Hemiptera: Pentatomidae). Journal of the New York Entomological Society, 84, 2–8.
  31. Rolston, L.H., McDonald, F.J.D. & Thomas, D.B. (1980) A conspectus of Pentatomini genera of the Western Hemisphere. Part I (Hemiptera: Pentatomidae). Journal of the New York Entomological Society, 88, 120–132.
  32. Stål, C. (1872) Enumeratio Hemipterorum. Bidrag till en förteckning öfver alla hittills kända Hemiptera, jemte systematiska meddelanden. 2. Kongliga Svenska Vetenskaps-Akademiens Handlingar, 10, 3–159.
  33. Thomas, D.B. (1990) Menudo, a new genus of Pentatomidae (Heteroptera) from Puerto Rico. Journal of the New York Entomological Society, 98, 424–428.
  34. Thomas, D.B. (2021) The Moneda Bug, Chrysodarecus moneta Breddin = Placocoris viridis Mayr (Pentatomidae: Discocephalinae: Ochlerini). Zootaxa, 4958 (1), 595–604. https://doi.org/10.11646/zootaxa.4958.1.35
  35. Walker, F. (1868) Catalogue of the specimens of Hemiptera Heteroptera in the collection of the British Museum. Part III. British Museum (Natural History), London, 182 pp. [pp. 418–599] https://doi.org/10.5962/bhl.title.118688
  36. Zhou, Y. & Rédei, D. (2020) From lanceolate to plate-like: Gross morphology, terminology, and evolutionary trends of the trichophoran ovipositor. Arthropod Structure & Development, 54, 100914. https://doi.org/10.1016/j.asd.2020.100914

How to Cite

Sampaio, V.G. & Campos, L.A. (2025) Review of Placocoris Mayr, 1864 (Hemiptera: Pentatomidae: Discocephalinae: Ochlerini). Zootaxa, 5701 (5), 531–546. https://doi.org/10.11646/zootaxa.5701.5.3