Pheidole dentigula

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Pheidole dentigula
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. dentigula
Binomial name
Pheidole dentigula
Smith, M.R., 1927

Pheidole dentigula casent0104393 profile 1.jpg

Pheidole dentigula casent0104393 dorsal 1.jpg

Specimen Label

According to Marion R. Smith (1944d), dentigula occurs in forests, where it nests in the soil and in rotten stumps. Stefan Cover (personal communication) adds that P. dentigula is definitely a forest ant. In moist or mesic forest types it is common in soil and rotten wood. In xeric types, like longleaf pine-turkey oak sandhill forest, it is found in moisture-retentive microhabitats like large rotten stumps, or under deep litter in small depressions.” W. L. Brown and I found winged reproductives in a colony near Ravenel, South Carolina, on 9 June 1957. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Tennessee and North Carolina south to the Florida Keys and west to eastern Texas, mostly on the coastal plain. (Wilson 2003)

Distribution based on Regional Taxon Lists

Nearctic Region: United States (type locality).
Neotropical Region: Mexico.


Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Major

Queen

Nomenclature

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

  • dentigula. Pheidole dentigula Smith, M.R. 1927: 310 (s.w.) U.S.A. Smith, M.R. 1928b: 245 (q.); Wheeler, G.C. & Wheeler, J. 1960b: 12 (l.); Crozier, 1970: 117 (k.). See also: Wilson, 2003: 407.

Type Material

MISSISSIPPI: State University, near Starkville, Oktibbeha Co., col. M. R. Smith (Wilson 2003). National Museum of Natural History and Museum of Comparative Zoology - as reported in Wilson (2003) Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

From Wilson (2003): Similar to Pheidole ceibana, Pheidole lignicola and Pheidole metallescens, differing as follows.

Major: frontal lobes and vertex carinulate; all of rest of dorsal head surface from eyes to occiput rugoreticulate; occipital cleft deep, its nadir angulate; inner teeth of hypostoma unusually prominent (projecting well forward of anterior head margin in side view); propodeal spines large, robust, equilaterally triangular; postpetiole from above very broad, elliptical.

Minor: space between eye and antennal fossa on each side rugulose, and most of rest of head, including occiput, carinulate; the carinulae are quite variably developed, and often weak even though still present (the figure represents one extreme); all of head and mesosoma except for midclypeus foveolate; anterior and lateral margins of pronotal dorsum rugulose; propodeal spines large, thick at base.

MEASUREMENTS (mm) Paratype major: HW 0.84, HL 0.94, SL 0.40, EL 0.10, PW 0.44. Paratype minor: HW 0.46, HL 0.52, SL 0.42, EL 0.06, PW 0.30.

COLOR Major: body and mandibles concolorous reddish brown; appendages dark yellow.

Minor: head, mandibles, and mesosoma light reddish brown; waist, gaster, and other appendages dark yellow.


Pheidole dentigula Wilson 2003.jpg

Figure. Upper: paratype, major. Lower: paratype, minor. Scale bars = 1 mm.

Karyotype

  • n = 10, 2n = 20 (USA) (Crozier, 1970b).

Etymology

L dentigula, toothed throat (gula), referring to the strong teeth of the hypostoma in the type majors. (Wilson 2003)

References

  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 407, fig. major, minor described)
  • Alatorre-Bracamontes, C.E., Vásquez-Bolaños, M. 2010. Lista comentada de las hormigas (Hymenoptera: Formicidae) del norte de México. Dugesiana 17(1): 9-36.
  • Crozier, R. H. 1970a. Karyotypes of twenty-one ant species (Hymenoptera: Formicidae), with reviews of the known ant karyotypes. Can. J. Genet. Cytol. 12: 109-128 (page 117, karyotype described)
  • Smith, M. R. 1927b. An additional annotated list of ants of Mississippi, with a description of a new species of Pheidole (Hym.: Formicidae). Entomol. News 38: 308-314 (page 310, soldier, worker described)
  • Smith, M. R. 1928b. An additional annotated list of the ants of Mississippi. With a description of a new species of Aphaenogaster (Hym.: Formicidae). Entomol. News 39: 242-246 (page 245, queen described)
  • Smith, M. R. 1944. Additional ants recorded from Florida, with descriptions of two new subspecies. Fla. Entomol. 27: 14–17.
  • Wheeler, G. C.; Wheeler, J. 1960b. Supplementary studies on the larvae of the Myrmicinae (Hymenoptera: Formicidae). Proc. Entomol. Soc. Wash. 62: 1-32 (page 12, larva described)

References based on Global Ant Biodiversity Informatics

  • Annotated Ant Species List Ordway-Swisher Biological Station. Downloaded at http://ordway-swisher.ufl.edu/species/os-hymenoptera.htm on 5th Oct 2010.
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  • Coovert, G.A. 2005. The Ants of Ohio (Hymenoptera: Formicidae) Ohio Biological Survey Bulletin New Series Volume 15(2):1-196
  • Dash S. T. and L. M. Hooper-Bui. 2008. Species diversity of ants (Hymenoptera: Formicidae) in Louisiana. Conservation Biology and Biodiversity. 101: 1056-1066
  • Del Toro, I. 2010. PERSONAL COMMUNICATION. MUSEUM RECORDS COLLATED BY ISRAEL DEL TORO
  • Deyrup M. 2016. Ants of Florida: identification and natural history. CRC Press, 423 pages.
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  • Deyrup, M. and J. Trager. 1986. Ants of the Archbold Biological Station, Highlands County, Florida (Hymenoptera: Formicidae). Florida Entomologist 69(1):206-228
  • Deyrup, Mark A., Carlin, Norman, Trager, James and Umphrey, Gary. 1988. A Review of the Ants of the Florida Keys. The Florida Entomologist. 71(2):163-176.
  • Epperson, D.M. and C.R. Allen. 2010. Red Imported Fire Ant Impacts on Upland Arthropods in Southern Mississippi. American Midland Naturalist, 163(1):54-63.
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  • Gregg R. E. 1959. Key to the species of Pheidole (Hymenoptera: Formicidae) in the United States. Journal of the New York Entomological Society 66: 7-48.
  • Guénard B., K. A. Mccaffrey, A. Lucky, and R. R. Dunn. 2012. Ants of North Carolina: an updated list (Hymenoptera: Formicidae). Zootaxa 3552: 1-36.
  • Hill, J.G. 2006. Ants collected at Okatibbee Lake, Lauderdale County, Mississippi
  • Ipser R. M. 2004. Native and exotic ants (Hymenoptera: Formicidae) of Georgia: Ecological Relationships with implications for development of biologically-based management strategies. Doctor of Philosophy thesis, University of Georgia. 165 pages.
  • Johnson C. 1986. A north Florida ant fauna (Hymenoptera: Formicidae). Insecta Mundi 1: 243-246
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  • MacGown J. A., J. G. Hill, and M. Deyrup. 2009. Ants (Hymenoptera: Formicidae) of the Little Ohoopee River Dunes, Emanuel County, Georgia. J. Entomol. Sci. 44(3): 193-197.
  • MacGown J. A., J. G. Hill, and R. L. Brown. 2010. Native and exotic ant in Mississippi state parks. Proceedings: Imported Fire Ant Conference, Charleston, South Carolina, March 24-26, 2008: 74-80.
  • MacGown J. A., and R. L. Brown. 2006. Survey of the ants (Hymenoptera: Formicidae) of the Tombigbee National Forest in Mississippi. Journal of the Kansas Entomological Society 79(4):325-340.
  • MacGown, J.A and J.A. Forster. 2005. A preliminary list of the ants (Hymenoptera: Formicidae) of Alabama, U.S.A. Entomological News 116(2):61-74
  • MacGown, J.A. and JV.G. Hill. Ants of the Great Smoky Mountains National Park (Tennessee and North Carolina).
  • MacGown, J.A. and R.L. Brown. 2006. Survey of the ants (Hymenoptera: Formicidae) of the Tombigbee National Forest in Mississippi. Journal of the Kansas Entomological Society 79(4):325-340.
  • MacGown, J.A., J.G. Hill, R.L. Brown and T.L. 2009. Ant Diversity at Noxubee National Wildlife Refuge in Oktibbeha, Noxubee, and Winston Counties, Mississippi Report #2009-01. Schiefer. 2009.
  • Macgown J. A., S. Y. Wang, J. G. Hill, and R. J. Whitehouse. 2017. A List of Ants (Hymenoptera: Formicidae) Collected During the 2017 William H. Cross Expedition to the Ouachita Mountains of Arkansas with New State Records. Transactions of the American Entomological Society, 143(4): 735-740.
  • Moreau C. S., M. A. Deyrup, and L. R. David Jr. 2014. Ants of the Florida Keys: Species Accounts, Biogeography, and Conservation (Hymenoptera: Formicidae). J. Insect Sci. 14(295): DOI: 10.1093/jisesa/ieu157
  • Van Pelt A. F. 1966. Activity and density of old-field ants of the Savannah River Plant, South Carolina. Journal of the Elisha Mitchell Scientific Society 82: 35-43.
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  • Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
  • Wilson, E.O. 2003. Pheidole in the New World: A Dominant, Hyperdiverse Genus. Harvard University Press