Pheidole gertrudae

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Pheidole gertrudae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species group: gertrudae
Species: P. gertrudae
Binomial name
Pheidole gertrudae
Forel, 1886

Pheidole gertrudae casent0178028 profile 1.jpg

Pheidole gertrudae casent0178028 dorsal 1.jpg

Specimen labels

Synonyms

Nothing is known about the biology of gertrudae.

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Widespread in Brazil, from Amazonas to Santa Catarina; also recorded from Tipuani, La Paz, Amazonian Bolivia (var. leonhardi types); Canindeyli Department, Paraguay; and Loreto, Misiones, northern Argentina (var. loretensis types). (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Bolivia, Brazil (type locality), Colombia, Paraguay.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • gertrudae. Pheidole gertrudae Forel, 1886b: xlii (w.) BRAZIL. Mayr, 1887: 592 (s.). Senior synonym of humilis: Kempf, 1960f: 463; of leonhardi, loretensis: Wilson, 2003: 537.
  • leonhardi. Pheidole gertrudae var. leonhardi Forel, 1901h: 62 (s.w.) BOLIVIA. Junior synonym of gertrudae: Wilson, 2003: 537.
  • humilis. Megalomyrmex (Wheelerimyrmex) humilis Borgmeier, 1930: 35, pl. 5, figs. 34, 36 (w.) BRAZIL. Junior synonym of gertrudae: Kempf, 1960f: 463.
  • loretensis. Pheidole (Pheidole) gertrudae var. loretensis Santschi, 1933e: 108 (w.) ARGENTINA. Junior synonym of gertrudae: Wilson, 2003: 537.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

From Wilson (2003): DIAGNOSIS With the distinctive qualities of the gertrudae group: propodeal spines greatly reduced to absent in major, absent in minor; propodeal spiracle extremely large; entire body mostly smooth and shiny. Differs from other members of group (Pheidole capillata, Pheidole jeannei, q.v.) in the major in the following combination of traits: no rugoreticulum on head, humerus subangulate in dorsal-oblique view; no trace of a propodeal spine, with the basal and declivitous faces of the propodeum in side view meeting in a very wide oblique angle.

MEASUREMENTS (mm) Lectotype major: HW 1.30, HL 1.34, SL 0.76, EL 0.26, PW 0.62. Para lectotype type minor: HW 0.64, HL 0.66, SL 0.72, EL 0.14, PW 0.40.

COLOR Major: concolorous light reddish yellow.

Minor: concolorous light brownish yellow.


Pheidole gertrudae Wilson 2003.jpg

Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.

Type Material

BRAZIL: Guanabara, Rio de Janeiro. Musee d'Histoire Naturelle Genève - as reported in Wilson (2003)

Etymology

Named in honor of Gertrude Naegeli. (Wilson 2003)

References

References based on Global Ant Biodiversity Informatics

  • Brandao C. R. F., R. Silvestre, and A. Reis-Menezes> Influencia das interacoes comportamentais entre especies de formigas em levantamentos faunisticos em communidades de Cerrado> pp 371-404> In martins R. P., T. M. Lewinsohn, and M. S. Barbeitos (eds). Ecologia e comportamento de insetos. Serie Oecologia Brasiliensis, vol. VIII. PPGE-URFJ, Rio de Janeiro, Brasil.
  • Costa-Milanez C. B., G. Lourenco-Silva, P. T. A. Castro, J. D. Majer, and S. P. Ribeiro. 2014. Are ant assemblages of Brazilian veredas characterised by location or habitat type? Braz. J. Biol. 74(1): 89-99.
  • Cuezzo, F. 1998. Formicidae. Chapter 42 in Morrone J.J., and S. Coscaron (dirs) Biodiversidad de artropodos argentinos: una perspectiva biotaxonomica Ediciones Sur, La Plata. Pages 452-462.
  • Dias N. D. S., R. Zanetti, M. S. Santos, M. F. Gomes, V. Peñaflor, S. M. F. Broglio, and J. H. C. Delabie. 2012. The impact of coffee and pasture agriculture on predatory and omnivorous leaf-litter ants. Journal of Insect Science 13:29. Available online: http://www.insectscience.org/13.29
  • Dias N. S., R. Zanetti, M. S. Santos, J. Louzada, and J. H. C. Delabie. 2008. Interaction between forest fragments and adjacent coffee and pasture agroecosystems: responses of the ant communities (Hymenoptera, Formicidae). Iheringia, Sér. Zool., Porto Alegre, 98(1): 136-142.
  • Escalante Gutiérrez J. A. 1993. Especies de hormigas conocidas del Perú (Hymenoptera: Formicidae). Revista Peruana de Entomología 34:1-13.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Forel A. 1901. Formiciden des Naturhistorischen Museums zu Hamburg. Neue Calyptomyrmex-, Dacryon-, Podomyrma- und Echinopla-Arten. Mitt. Naturhist. Mus. Hambg. 18: 43-82.
  • Forel A. 1908. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 58: 340-418.
  • Forel A. 1912. Formicides néotropiques. Part III. 3me sous-famille Myrmicinae (suite). Genres Cremastogaster et Pheidole. Mémoires de la Société Entomologique de Belgique. 19: 211-237.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Kusnezov N. 1952. El género Pheidole en la Argentina (Hymenoptera, Formicidae). Acta Zoologica Lilloana 12: 5-88.
  • Kusnezov N. 1978. Hormigas argentinas: clave para su identificación. Miscelánea. Instituto Miguel Lillo 61:1-147 + 28 pl.
  • Luederwaldt H. 1918. Notas myrmecologicas. Rev. Mus. Paul. 10: 29-64.
  • Montine P. S. M., N. F. Viana, W. Dattilo, A. S. Santanna, L. Martins, and A. B. Vargas. 2014. Seasonality of Epigaeic Ant Communities in a Brazilian Atlantic Rainforest. Sociobiology 61(2): 178-183.
  • Ribeiro L. F., R. R. C. Solar, T. G. Sobrinho, D. C. Muscardi, J. H. Schoereder, and A. N. Andersen. 2019. Different trophic groups of arboreal ants show differential responses to resource supplementation in a neotropical savanna. Oecologia 190(2): 433-443.
  • Rosa da Silva R. 1999. Formigas (Hymenoptera: Formicidae) do oeste de Santa Catarina: historico das coletas e lista atualizada das especies do Estado de Santa Catarina. Biotemas 12(2): 75-100.
  • Santos M. S., J. N. C. Louzada, N. Dias, R. Zanetti, J. H. C. Delabie, and I. C. Nascimento. 2006. Litter ants richness (Hymenoptera, Formicidae) in remnants of a semi-deciduous forest in the Atlantic rain forest, Alto do Rio Grande region, Minas Gerais, Brazil. Iheringia, Sér. Zool., Porto Alegre, 96(1): 95-101.
  • Santos P. P., A. Vasconcelos, B. Jahyny, and J. H. C. Delabie. 2010. Ant fauna (Hymenoptera, Formicidae) associated to arboreal nests of Nasutitermes spp. (Isoptera, Termitidae) in a cacao plantation in southeastern Bahia, Brazil. Revista Brasileira de Entomologia 54(3): 450–-454.
  • Santschi F. 1933. Fourmis de la République Argentine en particulier du territoire de Misiones. Anales de la Sociedad Cientifica Argentina. 116: 105-124.
  • Silvestre R., C. R. F. Brandão, and R. R. Silva da 2003. Grupos funcionales de hormigas: el caso de los gremios del cerrado. Pp. 113-148 in: Fernández, F. (ed.) 2003. Introducción a las hormigas de la región Neotropical. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xxvi + 424 pp.
  • Silvestre R., M. F. Demetrio, and J. H. C. Delabie. 2012. Community Structure of Leaf-Litter Ants in a Neotropical Dry Forest: A Biogeographic Approach to Explain Betadiversity. Psyche doi:10.1155/2012/306925
  • Suguituru S. S., M. Santina de Castro Morini, R. M. Feitosa, and R. Rosa da Silva. 2015. Formigas do Alto Tiete. Canal 6 Editora 458 pages
  • Vittar, F. 2008. Hormigas (Hymenoptera: Formicidae) de la Mesopotamia Argentina. INSUGEO Miscelania 17(2):447-466
  • Wild, A. L. "A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)." Zootaxa 1622 (2007): 1-55.
  • da Silva, R.R., C.R.F. Brandao, and R. Silvestre. 2004. Similarity Between Cerrado Localities in Central and Southeastern Brazil Based on the Dry Season Bait Visitors Ant Fauna. Studies on Neotropical Fauna and Environment 39(3):191-199.
  • de Almeida Soares S., Y. R. Suarez, W. D. Fernandes, P. M. Soares Tenorio, J. H. C. Delabie, and W. F. Antonialli-Junior. 2013. Temporal variation in the composition of ant assemblages (Hymenoptera, Formicidae) on trees in the Pantanal floodplain, Mato Grosso do Sul, Brazil. Rev. Bras. entomol. 57: 84-90