Probolomyrmex petiolatus

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to navigation Jump to search
Probolomyrmex petiolatus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Proceratiinae
Tribe: Probolomyrmecini
Genus: Probolomyrmex
Species: P. petiolatus
Binomial name
Probolomyrmex petiolatus
Weber, 1940



Specimen Label (compared with type)

The holotype was collected among leaves and humus on the rainforest floor.


Taylor (1965) - The worker of P. petiolatus differs from that of the sympatric Probolomyrmex angusticeps in its smaller size, with relatively broad head, much shorter scapes, and shorter, more compact petiolar node. The unknown worker of Probolomyrmex boliviensis is undoubtedly similar to P. angusticeps in these features.

Agosti (1994) - This species is easily recognized by the subpetiolar process.


Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia, Ecuador, Guatemala, Mexico, Panama (type locality), Venezuela.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb





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

  • petiolatus. Probolomyrmex petiolatus Weber, 1940b: 76, fig. 1 (w.) PANAMA. Agosti, 1995: 433 (q.). See also: Taylor, 1965d: 363; Brown, 1975: 57.

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



Taylor (1965) - The unique holotype worker of this species has the following dimensions: HL, 0.51 mm.; HW, 0.36 mm.; SL, 0.29 mm.; CI, 71; SI, 81; WL, 0.65 mm.; PW, 0.27 mm.; dorsal petiole width, 0.14 mm.; petiolar node index, 52; petiole height, 0.27 mm.; petiolar node length, 0.23 mm.; lateral petiolar index, 85. Weber's original description adequately characterises this distinctive species.

Agosti (1994) - HL 0.51-0.64, HW 0.35-0.40, SL 0.31-0.41, TL 0.66-0.88, CI 63-69, SI 70, (2 examined).


Agosti (1994) - HL 0.61, HW 0.42, SL 0.44, TL 0.90. CI 70, SI 104, (1 examined).

Type Material

Taylor (1965) - Holotype worker: Barro Colorado Island, Panama Canal Zone. N. A. Weber Collection (examined).


  • Agosti, D. 1995 [1994]. A revision of the South American species of the ant genus Probolomyrmex (Hymenoptera: Formicidae). Journal of the New York Entomological Society. 102:429-434. PDF
  • Brown, W. L., Jr. 1975. Contributions toward a reclassification of the Formicidae. V. Ponerinae, tribes Platythyreini, Cerapachyini, Cylindromyrmecini, Acanthostichini, and Aenictogitini. Search Agric. (Ithaca N. Y.) 5(1 1: 1-115 (page 57, see also)
  • Delabie, J. H. C.; Vasconcelos, H. L.; Vilhena, J. M. S.; Agosti, D. 2001. First record of the ant genus Probolomyrmex (Hymenoptera: Formicidae) in Brazil. Rev. Biol. Trop. 49: 397-398 (page 397, record in Brazil)
  • Taylor, R. W. 1965d. A monographic revision of the rare tropicopolitan ant genus Probolomyrmex Mayr (Hymenoptera: Formicidae). Trans. R. Entomol. Soc. Lond. 117: 345-365 (page 363, see also)
  • Weber, N. A. 1940c. Rare ponerine genera in Panama and British Guiana (Hym.: Formicidae). Psyche (Camb.) 47: 75-84 (page 76, fig. 1 worker described)