Strumigenys deinomastax

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Strumigenys deinomastax
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. deinomastax
Binomial name
Strumigenys deinomastax
(Bolton, 2000)

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Specimen Labels

Nothing is known about the biology of Strumigenys deinomastax.

Identification

Bolton (2000) - A member of the Strumigenys appretiata-group. Easily recognised within the group as this is the only species to lack any form of hair at the pronotal humeri and on the mesonotum, and to have the first gastral tergite covered with fine reticular patterning.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 4.091666667° to -64.23°.

     
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

Distribution based on AntMaps

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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.
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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.
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Biology

Castes

Nomenclature

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

  • deinomastax. Pyramica deinomastax Bolton, 2000: 160, figs. 124, 185 (w.) BRAZIL. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 118

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

Description

Worker

Holotype. TL 2.1, HL 0.64, HW 0.60, CI 94, ML 0.12, MI 19, SL 0.24, SI 40, PW 0.28, AL 0.56. Pronotal humeral hair absent. Promesonotum weakly marginate dorsolaterally, the dorsum with feeble scattered longitudinal rugulae. Mesonotum without standing hairs. Propodeal dorsum unsculptured but upper half of declivity feebly reticulate-punctate. Propodeal spines acutely triangular, broad basally and nearly as long as the dorsal surface of the petiole node. In profile height of anterior face of petiole node less than its dorsal length. Anterodorsal angle of node acute and in profile slightly overhanging the anterior face of the node. Ventral spongiform lobe of postpetiole relatively large and with a broadly convex free ventral margin in profile, but overhung by the large lateral lobe so that the ventral lobe is not visible in dorsal view. Petiole node in dorsal view as broad as long, with a sharply marginate anterior border. Lateral spongiform lobes of petiole narrow, arising on posterior two-thirds of each side and strongly projecting laterally. Sides of postpetiole completely enclosed by the extensive lateral spongiform lobes. Postpetiolar disc smooth, broader in front than behind and with its anterior margin shallowly concave. Basigastral costulae sparse and very short. First gastral tergite with fine superficial reticular patterning and with only two pairs of hairs, one pair laterobasally and the other close to the apex of the sclerite. These hairs are short and simple, suberect to erect and apparently easily lost by abrasion.

Paratypes. TL 2.0-2.2, HL 0.60-0.67, HW 0.58-0.66, CI 95-97, ML 0.11-0.12, MI 18-19, SL 0.22-0.24, SI 36-40, PW 0.26-0.28, AL 0.54-0.60 (5 measured). As holotype but sculpture on promesonotum may be effaced or absent, leaving the surface smooth and shining.

Type Material

Holotype worker, Brazil: Amazonas, Manaus, Colosso, 52 m., l.iii.1994, #279 (R. Didham) (Instituto Nacional de Pesquisas da Amazonia).

Paratypes. 3 workers with same data but 27.i.1994, #96, two workers with same data but 5.iii.1994, #324 (INPA, The Natural History Museum, Museum of Comparative Zoology).

References

References based on Global Ant Biodiversity Informatics

  • Fernandes I., and J. de Souza. 2018. Dataset of long-term monitoring of ground-dwelling ants (Hymenoptera: Formicidae) in the influence areas of a hydroelectric power plant on the Madeira River in the Amazon Basin. Biodiversity Data Journal 6: e24375.
  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
  • Groc S., J. H. C. Delabie, F. Fernandez, M. Leponce, J. Orivel, R. Silvestre, Heraldo L. Vasconcelos, and A. Dejean. 2013. Leaf-litter ant communities (Hymenoptera: Formicidae) in a pristine Guianese rainforest: stable functional structure versus high species turnover. Myrmecological News 19: 43-51.
  • Groc S., J. Orivel, A. Dejean, J. Martin, M. Etienne, B. Corbara, and J. H. C. Delabie. 2009. Baseline study of the leaf-litter ant fauna in a French Guianese forest. Insect Conservation and Diversity 2: 183-193.