Strumigenys ornata

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Strumigenys ornata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species group: ornata
Species: S. ornata
Binomial name
Strumigenys ornata
Mayr, 1887

MCZ-ENT 001 Pyramica ornata hal.jpg

MCZ-ENT 001 Pyramica ornata had-.jpg

Specimen Label

Strumigenys ornata is a wide-ranging and common eastern North American species with a western distribution extending into Texas and Oklahoma, United States. Although not previously collected outside the USA, a specimen examined and housed at the MCZ was collected at high-altitude in Cerro Potosi, Nuevo Leon, Mexico, expanding the known range. This species has often been found in forested habitats nesting in litter, crevices, and log debris, but is rarely found in hollowed twigs or nuts on the ground where many other Strumigenys often nest (Brown, 1953; Duffield & Alpert, 2011; Booher et al., 2017; Booher, 2021).

Two workers were found near the kitchen midden of a colony of Aphaenogaster fulva which was nesting under a large stone in a rather moist hillside woods. Another colony was found in an almost identical situation in dense, oak woods. In the latter case a worker was first seen in a frequented gallery of A. fulva under a large stone. The nest was located about 3 cm. to one side of the stone, and consisted of an irregular cavity, perhaps just a crack in the soil, barely beneath the humus. It contained not more than 20 workers. Both localities were in Pike County. (Wesson and Wesson 1939)

Identification

Bolton (2000) - A member of the Strumigenys ornata-group. The remarkable form of the clypeal pilosity renders this species unmistakable. The distribution of specialised clypeal hairs is duplicated in Strumigenys dietrichi but in that species they are not bulbous apically nor strongly recurved, and the clypeus is bluntly pointed anteriorly.

Keys including this Species

Distribution

USA to Mexico; in eastern USA from Florida to Maryland and west to Iowa including Michigan; in eastern USA occurs in Oklahoma and Texas (Booher, 2021).

Latitudinal Distribution Pattern

Latitudinal Range: 44.34° to 26.945°.

   
North
Temperate 		North
Subtropical 		Tropical South
Subtropical 		South
Temperate

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

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.
pChart

Biology

Brown (1953) - Abundant ecological notes furnished by collectors indicate that ornata is most frequently taken in Berlese funnel samples of forest ground cover. Records in connection with large masses of rotten wood are few and indicate that nests of this sort are near or at the soil cover level, e.g., "under rotten stump" or "at base of rotten stump." The Wessons and others have seen nests in crevices in the soil or under stones, and specimens are frequently found in the nests of other, larger species of ants. Series from Berlese funnel batches frequently come mixed with other soil dwelling Strumigenys , indicating that the ants probably congregate in in areas where prey is concentrated

Brown (1964) - Leaf litter or “forest debris”, beech tree-hole mold berlesate, hardwood leaf litter, live oak on sand, under rotten branch, under bark of small pine log in litter (Wilson and Brown leg.).

Castes

Worker

Images from AntWeb

Pyramica ornata casent0104478 head 1.jpgPyramica ornata casent0104478 dorsal 1.jpgPyramica ornata casent0104478 label 1.jpg
Worker. Specimen code casent0104478. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ABS, Lake Placid, FL, USA.

Queen

Images from AntWeb

Pyramica ornata casent0104479 head 1.jpgPyramica ornata casent0104479 profile 1.jpgPyramica ornata casent0104479 dorsal 1.jpgPyramica ornata casent0104479 label 1.jpg
Queen (alate/dealate). Specimen code casent0104479. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ABS, Lake Placid, FL, USA.

Male

Images from AntWeb

Pyramica ornata casent0104480 head 1.jpgPyramica ornata casent0104480 profile 1.jpgPyramica ornata casent0104480 profile 2.jpgPyramica ornata casent0104480 dorsal 1.jpgPyramica ornata casent0104480 label 1.jpg
Worker. Specimen code casent0104480. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ABS, Lake Placid, FL, USA.

Nomenclature

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

  • ornata. Strumigenys ornata Mayr, 1887: 571 (footnote) (w.) U.S.A. Brown, 1953g: 66 (q.). Combination in S. (Cephaloxys): Emery, 1924d: 325; in S. (Trichoscapa): Smith, M.R., 1947f: 587; Creighton, 1950a: 308; in Smithistruma: Smith, M.R., 1951a: 828; Brown, 1953g: 65; in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 125. See also: Bolton, 2000: 113.

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 2.0-2.2, HL 0.54-0.60, HW 0.35-0.38, CI 63-66, ML 0.06-0.08, MI 11-14, SL 0.26-0.30, SI 70-80, PW 0.23-0.26, AL 0.50-0.58 (20 measured).

Fully closed mandibles with a gap between basal tooth and anterior clypeal margin that is equal to or longer than the length of the basal tooth. In full-face view clypeus with a short transverse to feebly convex anterior margin; hair at anterolateral clypeal angle, above mandible, curved strongly away from the midline and bulbous apically. Two stout hairs proj ect from lateral clypeal margin on each side, bulbous apically and shallowly curved posteriorly. In anterior view clypeus with an apicodorsal series of 4-6 stout standing long hairs that radiate from the dorsal apex like the ribs of a fan, these hairs strongly bulbous at their apices and in profile strongly curved posteriorly. In profile clypeal dorsum with a pair of very long wire-like hairs that arise at about the midlength; each of these hairs is inclined posteriorly from just above its base, then curves smoothly upwards so that at least the apical half of the shaft is directed vertically or nearly so. Dorsolateral margin of head with 2 long flagellate hairs, one in apicoscrobal position the other anterior to this, above the eye; distribution of flagellate hairs otherwise as in Strumigenys cloydi.

Type Material

Bolton (2000) - Syntype workers, U.S.A. District of Columbia, Washington (Pergande) (Naturhistorisches Museum Wien, Vienna, The Natural History Museum, National Museum of Natural History) [examined].

References

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.
  • Atchison R. A., J. Hulcr, and A. Lucky. 2018. Managed fire frequency significantly influences the litter arthropod community in longleaf pine flatwoods. Environmental Entomology 20(10): 1-11.
  • Brown W. L. 1964. The ant genus Smithistruma: a first supplement to the world revision (Hymenoptera: Formicidae). Transactions of the American Entomological Society 89: 183-200.
  • Brown W. L., Jr. 1953. Revisionary studies in the ant tribe Dacetini. Am. Midl. Nat. 50: 1-137.
  • Carroll T. M. 2011. The ants of Indiana (Hymenoptera: Formicidae). Master's Thesis Purdue university, 385 pages.
  • Coovert G. A. 2005. The Ants of Ohio (Hymenoptera: Formicidae). Ohio Biological Survey, Inc. 15(2): 1-207.
  • 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
  • Deyrup M., C. Johnson, G. C. Wheeler, J. Wheeler. 1989. A preliminary list of the ants of Florida. Florida Entomologist 72: 91-101
  • Deyrup, M. 2003. An updated list of Florida ants (Hymenoptera: Formicidae). Florida Entomologist 86(1):43-48.
  • Deyrup, M. and S. Cover. 2009. Dacetine Ants in Southeastern North America (Hymenoptera: Formicidae). Southeastern Naturalist 8(2):191-212
  • Dubois, M.B. and W.E. Laberge. 1988. An Annotated list of the ants of Illionois. pages 133-156 in Advances in Myrmecology, J. Trager
  • Forster J.A. 2005. The Ants (hymenoptera: Formicidae) of Alabama. Master of Science, Auburn University. 242 pages.
  • General D. M., and L. C. Thompson. 2011. New Distributional Records of Ants in Arkansas for 2009 and 2010 with Comments on Previous Records. Journal of the Arkansas Academy of Science 65: 166-168.
  • General D., and L. Thompson. 2008. Ants of Arkansas Post National Memorial: How and Where Collected. Journal of the Arkansas Academy of Science 62: 52-60.
  • General D., and L. Thompson. 2008. New distributional records of ants in Arkansas. Journal of the Arkansas Academy of Science 62: 148-150.
  • General D.M. & Thompson L.C. 2008. New Distributional Records of Ants in Arkansas for 2008. Journal of the Arkansas Academy of Science. 63: 182-184
  • 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. & Brown R. L. 2010. The Ant (Hymenoptera: Formicidae) Fauna of Black Belt Prairie Remnants in Alabama and Mississippi. Southeastern Naturalist. 9: 73-84
  • 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.
  • Ivanov, K. 2019. The ants of Ohio (Hymenoptera, Formicidae): an updated checklist. Journal of Hymenoptera Research 70: 65–87.
  • Ivanov K., L. Hightower, S. T. Dash, and J. B. Keiper. 2019. 150 years in the making: first comprehensive list of the ants (Hymenoptera: Formicidae) of Virginia, USA. Zootaxa 4554 (2): 532–560.
  • Johnson C. 1986. A north Florida ant fauna (Hymenoptera: Formicidae). Insecta Mundi 1: 243-246
  • Lynch J. F. 1988. An annotated checklist and key to the species of ants (Hymenoptera: Formicidae) of the Chesapeake Bay region. The Maryland Naturalist 31: 61-106
  • Lynch J. F., and A. K. Johnson. 1988. Spatial and temporal variation in the abundance and diversity of ants (Hymenoptera: Formicidae) in the soild and litter layers of a Maryland forest. American Midland Naturalist 119(1): 31-44.
  • MacGown J. A., J. G. Hill, R. L. Brown, T. L. Schiefer, J. G. Lewis. 2012. Ant diversity at Noxubee National Wildlife Refuge in Oktibbeha, Noxubee, and Winston Counties, Mississippi. Mississippi Agricultural and Forestry Experiment Station Bulletin 1197: 1-30
  • 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. Observations on the High Diversity of Native Ant Species Coexisting with Imported Fire Ants at a Microspatial Scale in Mississippi. Southeastern Naturalist 5(4):573-586
  • 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., R.L. Brown and J.G. Hill. 2005. An Annotated List of the Pyramica (Hymenoptera: Formicidae: Dacetini) of Mississippi. Journal of the Kansas Entomological Societ 78 (3):285-289
  • MacGown. J. 2011. Ants collected during the 25th Annual Cross Expedition at Tims Ford State Park, Franklin County, Tennessee
  • MacKay W. P. and Anderson R. S. 1993. New distributional records for the ant genus Smithistruma (Hymenoptera: Formicidae) in southern United States. The Southwestern Naturalist 38: 388-389
  • 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.
  • Nuhn, T.P. and C.G. Wright. 1979. An Ecological Survey of Ants (Hymenoptera: Formicidae) in a Landscaped Suburban Habitat. American Midland Naturalist 102(2):353-362
  • O'Keefe S. T., J. L. Cook, T. Dudek, D. F. Wunneburger, M. D. Guzman, R. N. Coulson, and S. B. Vinson. 2000. The Distribution of Texas Ants. The Southwestern Entomologist 22: 1-92.
  • O'Neill J.C. and Dowling A.P.G. 2011. A Survey of the Ants (hymenoptera: Formicidae) of Arkansas and the Ozark Mountains. An Undergraduate Honors, University of Arkansas. 18pages.
  • Smith M. R. 1931. A revision of the genus Strumigenys of America, north of Mexico, based on a study of the workers (Hymn.: Formicidae). Annals of the Entomological Society of America 24: 686-710.
  • Smith M. R. 1962. A new species of exotic Ponera from North Carolina (Hymenoptera, Formicidae). Acta Hymenopterologica 1: 377-382.
  • Warren, L.O. and E.P. Rouse. 1969. The Ants of Arkansas. Bulletin of the Agricultural Experiment Station 742:1-67
  • Wesson L. G., and R. G. Wesson. 1939. Notes on Strumigenys from southern Ohio, with descriptions of six new species. Psyche (Cambridge) 46: 91-112.
  • Wheeler G. C., J. N. Wheeler, and P. B. Kannowski. 1994. Checklist of the ants of Michigan (Hymenoptera: Formicidae). The Great Lakes Entomologist 26(4): 297-310
  • Wheeler, G.C. and J. Wheeler. 1985. A checklist of Texas ants. Prairie Naturalist 17:49-64.
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