Making cryptic diversity accessible through morphology

Identification of ants of the Tetramorium caespitum/impurum complex by classificatory discriminant analyis of worker morphometrics

»  T. caespitum (Linnaeus, 1758)
»  T. impurum (Foerster, 1850)
»  T. hungaricum (Röszler, 1935)
»  T. tsushimae (Emery, 1925)
»  T. sp.A ex Schlick-Steiner & al. (2006)
»  T. sp.B ex Schlick-Steiner & al. (2006)
»  T. sp.C ex Schlick-Steiner & al. (2006)
»  T. sp.D ex Schlick-Steiner & al. (2006)
»    T. sp.E ex Schlick-Steiner & al. (2006)



This is a tool to identify single workers of ants of the Tetramorium caespitum/impurum complex:
First, click "Manual" to view the character definitions; second, acquire the morphometric data for your specimen; third, click "data entry" and enter the character values; fourth, click "identify". For interpretation of the returned probability values of species memberships, see "Manual"

For further information on the identified ants see
- Schlick-Steiner & al. (2006):  Molecular Phylogenetics and Evolution 40: 259-273.
- Steiner & al. (2006):  Biological Invasions 8: 117-123.
For comprehensive recommendations for high-precision morphometry see
- Seifert (2002):  Journal of Applied Entomology 126: 1-9.
For detailled information on discriminant analysis see, e.g.,
- Jobson, J.D. (1992): Applied multivariate data analysis. Volume II: Categorical and multivariate methods. - Springer Verlag New York Inc., New York, Berlin, Heidelberg.
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To run the program locally a working java installation is needed (Java download side).
Copyright Florian M. Steiner, Birgit C. Schlick-Steiner, Karl Moder 2006