Strumigenys princeps

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Strumigenys princeps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. princeps
Binomial name
Strumigenys princeps
Kempf & Brown, 1969

Strumigenys princeps casent0102579 profile 1.jpg

Strumigenys princeps casent0102579 dorsal 1.jpg

Specimen labels

The type colony was found in second growth rain forest or "capoeira", about 100 m from the river bank; the nest was a large one, containing several hundred workers with brood and alate females, and was in a rotten palm stump in deep shade. Just above the Strumigenys princeps nest and completely interdigitating with it was a populous nest of the much larger ponerine ant Neoponera apicalis and below and surrounding it was a large nest of a yellowish Crematogaster. (Kempf and Brown 1969)

Identification

Bolton (2000) - A member of the Strumigenys precava-group. The largest species yet known in the group, princeps lacks the long flagellate gastral hairs characteristic of Strumigenys formicosa and Strumigenys precava, and lacks the densely costulate first gastral tergite that is so conspicuous in Strumigenys thomae. The spongiform appendages of the waist segments are smaller in princeps than in the other species and its cephalic sculpture is an uninterrupted dense, sharply defined reticulate-punctation.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -3.089° to -3.1°.

 
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.

  • princeps. Strumigenys princeps Kempf & Brown, 1969: 21, figs. 4, 5 (w.q.) BRAZIL. See also: Bolton, 2000: 548.

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) - TL 4.2-4.6, HL 1.19-1.30, HW 0.92-1.03, CI 77-81, ML 0.50-0.54, MI 41-45, SL 0.72-0.78, SI 75-80, PW 0.45-0.50, AL 1.10-1.22 (6 measured).

Ground-pilosity of cephalic dorsum suberect, short stubbly and simple; a few longer more erect hairs present on posterior half of dorsum. Hairs on leading edge of scape short and stubbly, more or less straight, not all inclined toward apex of scape; those on basal third at approximate right-angles to long axis of scape. In full-face view lateral margins of occipital lobes with numerous very short but freely projecting simple stubbly hairs. Pronotal humeral hair stiff and straight, stout and truncated apically. Dorsum of head densely reticulate-punctate, without overlying rugular sculture. First gastral tergite with numerous erect short stiff hairs. With waist segments in profile lateral spongiform lobe of petiole no more than a slight expansion of apex of posterior collar; lateral lobe of postpetiole reduced to a narrow longitudinal strip along ventral margin of tergite; ventral lobe of postpetiole well developed. Spongiform pad at base of first gastral sternite very small to vestigial. Disc of postpetiole finely and densely reticulate-punctate. Basigastral costulae short but sharply defined, gaster otherwise glassy smooth.

Type Material

Bolton (2000) - Holotype worker, and paratype workers and queens, BRAZIL: Amazonas, Manaus, 1.ix.1962, No. 3073 (K. Lenko); Amazonas, N of Manaus, Ponta Negra, ix.1962, M-135 (W. L. Brown) (Museu de Zoologia da Universidade de Sao Paulo, Museum of Comparative Zoology, California Academy of Sciences, The Natural History Museum) [examined].

References

References based on Global Ant Biodiversity Informatics

  • Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).