Strumigenys mandibularis

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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

Strumigenys mandibularis casent0900424 p 1 high.jpg

Strumigenys mandibularis casent0900424 d 1 high.jpg

Specimen Labels

Synonyms

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

Distribution

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

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • 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