Strumigenys mandibularis

Strumigenys mandibularis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Attini
Genus:	Strumigenys
Species:	S. mandibularis
Binomial name
Strumigenys mandibularis Smith, F., 1860 Specimen Labels
Synonyms
Strumigenys batesi Forel, 1911

Collected only a few times, little is know about the biology of Strumigenys mandibularis.

Identification

Bolton (2000) - A member of the mandibularis complex in the Strumigenys mandibularis-group. Only Strumigenys godmani approaches the size of mandibularis within the mandibularis-complex. The two are easily separated as the former lacks gastral sculpture and has the postpetiole disc markedly longer than broad.

Keys including this Species

• Key to Neotropical and Nearctic Strumigenys

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -3.459° to -26.680185°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).
Oriental Region: Nepal.

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Nomenclature

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

• mandibularis. Strumigenys mandibularis Smith, F. 1860c: 72, pl. 4, figs. 6, 8, 10 (q., not w.; see Mayr, 1887: 574) BRAZIL. Senior synonym of batesi: Brown, 1953d: 53. See also: Donisthorpe, 1948h: 78; Bolton, 2000: 535.
• batesi. Strumigenys batesi Forel, 1911e: 264 (w.) BRAZIL. Junior synonym of mandibularis: Brown, 1953d: 53.

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

Description

Worker

Bolton (2000) - HL 1.22, HW 1.23, CI 101, SL 0.67, SI 54, PW 0.64, AL 1.30 (measurements of a single damaged worker with mandibles missing; MI ca 40 by approximation from a queen). Characters of mandibularis-complex. Very large, broad headed species (see measurements). Pronotal dorsum more or less flat, bluntly marginate dorsolaterally. Mesonotum anterolaterally raised into a pair of broad, bluntly triangular prominences, the dorsum shallowly concave between them and almost vertical behind them. All dorsal surfaces of head, alitrunk and waist segments sharply densely reticulate-punctate. First gastral tergite blanketed with very fine dense longitudinal striolate sculpture. First gastral sternite with similar but less strongly defined sculpture. Disc of postpetiole about 1.24 X broader than long (maximum length 0.34, maximum width 0.42).

Type Material

Bolton (2000) - Lectotype queen (designated by Brown, 1962b: 2 8) [workers excluded from type-series by Mayr, 1887: 574), BRAZIL: Sao Paulo (The Natural History Museum) [examined].

References

• Aguiar, H.J.A.C., Barros, L.A.C., Silveira, L.I., Petitclerc, F., Etienne, S., Orivel, J. 2020. Cytogenetic data for sixteen ant species from North-eastern Amazonia with phylogenetic insights into three subfamilies. Comparative Cytogenetics 14(1): 43–60 (doi:10.3897/CompCytogen.v14i1.46692).
• Albuquerque, E., Prado, L., Andrade-Silva, J., Siqueira, E., Sampaio, K., Alves, D., Brandão, C., Andrade, P., Feitosa, R., Koch, E., Delabie, J., Fernandes, I., Baccaro, F., Souza, J., Almeida, R., Silva, R. 2021. Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin. Zootaxa 5001, 1–83 (doi:10.11646/zootaxa.5001.1.1).
• Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria”. 99:1-191.
• Bolton, B. 1983. The Afrotropical dacetine ants (Formicidae). Bulletin of the British Museum (Natural History). Entomology. 46:267-416.
• Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 535, catalogue)
• Booher, D.B., Hoenle, P.O. 2021. A new species group of Strumigenys (Hymenoptera, Formicidae) from Ecuador, with a description of its mandible morphology. ZooKeys 1036, 1–19 (doi:10.3897/zookeys.1036.62034).
• Brown, W. L., Jr. 1953. The neotropical species of the ant genus Strumigenys Fr. Smith: group of mandibularis Fr. Smith. Journal of the New York Entomological Society. 61:53-59. (page 53, senior synonym of batesi)
• Brown, W. L., Jr. 1962c. The neotropical species of the ant genus Strumigenys Fr. Smith: synopsis and keys to the species. Psyche. 69:238-267.
• Donisthorpe, H. 1948h. A redescription of the types of Strumigenys mandibularis F. Smith, and Cephaloxys capitata F. Smith. Psyche. 55:78-81. (page 78, see also)
• Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien. 37:511-632. (page 574, see also)
• Smith, F. 1860c. Descriptions of new genera and species of exotic Hymenoptera. Journal of Entomology 1: 65-84. (page 72, pl. 4, figs. 6, 8, 10 queen described)
• Subedi, I.P., Budha, P.B., Bharti, H., Alonso, L. 2020. An updated checklist of Nepalese ants (Hymenoptera, Formicidae). ZooKeys 1006, 99–136 (doi:10.3897/zookeys.1006.58808).

References based on Global Ant Biodiversity Informatics

• Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
• Forel A. 1911. Die Ameisen des K. Zoologischen Museums in München. Sitzungsber. Math.-Phys. Kl. K. Bayer. Akad. Wiss. Münch. 11: 249-303.
• Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
• Kusnezov, N., and R. Golbach. "Lista de las especies argentinas de la tribu Dacetini Hymenoptera, Formicidae." Acta Zoologica Lilloana 10 (1952): 423-426.