Leptothorax retractus

Leptothorax retractus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Crematogastrini
Genus:	Leptothorax
Species:	L. retractus
Binomial name
Leptothorax retractus Francoeur, 1986 Specimen Label

At a Glance

• Polygynous

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: 68.59655° to 44.348968°.

North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

• Source: AntMaps

Distribution based on Regional Taxon Lists

Nearctic Region: Canada (type locality).

Distribution based on AntMaps

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.

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.

Biology

Life History Traits

• Queen number: polygynous (Frumhoff & Ward, 1992)

Castes

Images from AntWeb

Queen (alate/dealate). Specimen code casent0104799. Photographer April Nobile, uploaded by California Academy of Sciences.	Owned by UCDC, Davis, CA, USA.

Male (alate). Specimen code casent0104800. Photographer April Nobile, uploaded by California Academy of Sciences.	Owned by UCDC, Davis, CA, USA.

Images from AntWeb

Worker. Specimen code casent0104798. Photographer April Nobile, uploaded by California Academy of Sciences.	Owned by UCDC, Davis, CA, USA.

Nomenclature

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

• retractus. Leptothorax retractus Francoeur, 1986a: 1152, figs. 1-17 (w.q.m.) CANADA. See also: Loiselle, Francoeur, et al. 1990: 329.

Description

Karyotype

• See additional details at the Ant Chromosome Database.

 Explore: Show all Karyotype data or Search these data. See also a list of all data tables or learn how data is managed.

• n = 17 (Canada) (Francoeur, 1986; Loiselle et al., 1990).
• n = 18 (Canada) (Francoeur, 1986; Loiselle et al., 1990).

References

• Cantone S. 2018. Winged Ants, The queen. Dichotomous key to genera of winged female ants in the World. The Wings of Ants: morphological and systematic relationships (self-published).
• Francoeur, A. 1986b. Deux nouvelles fourmis néarctiques: Leptothorax retractus et L. sphagnicolus (Formicidae, Hymenoptera). Can. Entomol. 118: 1151-1164. (page 1152, figs. 1-17 worker, queen, male described)
• Loiselle, R.; Francouer, A.; Fischer, K.; Buschinger, A. 1990. Variations and taxonomic significance of the chromosome numbers in the Nearctic species of the genus Leptothorax (s.s.) (Formicidae: Hymenoptera). Caryologia 43: 321-334 (page 329, see also)

References based on Global Ant Biodiversity Informatics

• Foitzik S., and Heinze, J. 1999. Non-random size differences between sympatric species of the ant genus Leptothorax (Hymenoptera: Formicidae). Entomologia Generalis 24: 65-74.
• Francoeur A. 1997. Ants (Hymenoptera: Formicidae) of the Yukon. Biological Survey of Canada Monograph Series 2: 901-910.
• Francoeur, A. 1986. DEUX NOUVELLES FOURMIS NÉARCTIQUES: LEPTOTHORAX RETRACTUS ET L. SPHAGNICOLUS (FORMICIDAE, HYMENOPTERA). Canadian Entomologist 118(11): 1151-1164
• Francoeur, A. 1997. Ants (Hymenoptera: Formicidae) of the Yukon. Pages 901– 910 in H.V. Danks and J.A. Downes (Eds.), Insects of the Yukon. Biological Survey of Canada (Terrestrial Arthropods), Ottawa.
• Heinze, J. 1995. The Origin of Workerless Parasites in Leptothorax (S. Str.) (Hymenoptera: Formicidae). Psyche 102 (3-4) :195-214
• Lubertazi, D. Personal Communication. Specimen Data from Museum of Comparative Zoology at Harvard