Camponotus spissinodis

Every Ant Tells a Story - And Their Stories Are Here
Jump to navigation Jump to search
Camponotus spissinodis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Camponotus
Species: C. spissinodis
Binomial name
Camponotus spissinodis
Forel, 1909

Camponotus spissinodis casent0910433 p 1 high.jpg

Camponotus spissinodis casent0910433 d 1 high.jpg

Specimen Labels




Distribution based on Regional Taxon Lists

Palaearctic Region: Algeria (type locality).

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.

  • crassinodis. Camponotus lateralis var. crassinodis Forel, 1894d: 3 (w.) ALGERIA. [Junior primary homonym of crassinodis, above.] Replacement name: spissinodis Forel, 1909e: 374.
  • spissinodis. Camponotus lateralis r. spissinodis Forel, 1909e: 374. Replacement name for crassinodis Forel, 1894d: 3. [Junior primary homonym of crassinodis Forel, 1892j: 230.] Karavaiev, 1912a: 20 (m.); Santschi, 1929e: 164 (q.). Combination in C. (Orthonotomyrmex): Forel, 1916: 458; in C. (Myrmentoma): Emery, 1925a: 63. Subspecies of lateralis: Cagniant, 1964: 109; of piceus: Emery, 1925a: 63; Santschi, 1929e: 164; Baroni Urbani, 1971c: 195. Raised to species: Cagniant, 1996b: 92.

Taxonomic Notes

Seifert (2019): This taxon has been described by Forel as Camponotus lateralis r. spissinodis from Lambessa / Tunisia. Two minor worker syntypes from Musee d'Histoire Naturelle Genève labeled ‘C.lateralis Ol. ☿ r. spissinodis Forel type Lambessa’, ‘ANTWEB CASENT09110434 bottom w.’ and 3 major worker syntypes on another pin equally labeled ‘ANTWEB CASENT09110433 bottom w.’ were examined. The investigation showed that C. spissinodis is an African species related to those Eurocaucasian species of the C. lateralis group having a completely blackish dorsum of head. Among other characters, the C. spissinodis types differ from Camponotus piceus, Camponotus heidrunvogtae by the absent or very weak scape base extension (mean SCI1.25 of four syntypes 1.062) and the clearest differences to Camponotus atricolor is the much larger MGr/CS1.25 (mean 0.077), the larger SL/CS1.25 (mean 1.007) and smaller PrL/CS1.25 (mean 0.397). The relation to Camponotus candiotes appears controversial. There is no single NUMOBAT character which is clearly outside the range of C. candiotes (Tab. 3). Running a PCA of C. atricolor, C. candiotes and the syntypes of C. spissinodis, considering 12 RAVcorrected characters and cephalic size, the C. spissinodis types are placed by the first five principal components within the C. candiotes cluster. NC-part.kmeans and NC-part.hclust allocates the C. spissinodis types to the C. candiotes cluster but they appear with the latter algorithm as single-sample outlier of the C. candiotes cluster. NC-NMDS clustering places the centroid of the type series as outlier in 5 out of 15 bivariate plots of the first six stress vectors. C. spissinodis is not proposed to be synonymous with C. candiotes because of outlier placements in two exploratory data analyses and differences in two characters clearly confirmed by ANOVA tests: SL/CS1.25 (F1,42=14.23, p<0.001) and PrL/CS1.25 (F1,42=17.94, p<0.0005). Furthermore, the types of C. spissinodis show a stronger sculpture and more convex profile of dorsal propodeum and absolute size of the largest major worker exceeds the range known for C. candiotes.



  • Baroni Urbani, C. 1971c. Catalogo delle specie di Formicidae d'Italia (Studi sulla mirmecofauna d'Italia X). Mem. Soc. Entomol. Ital. 50: 5-287 (page 195, Subspecies of piceus)
  • Cagniant, H. 1964 [1962]. Étude de quelques fourmis marocaines. Statistique provisoire des Formicidae du Maroc. Bull. Soc. Hist. Nat. Afr. Nord 53: 83-118 (page 109, Subspecies of lateralis)
  • Cagniant, H. 1996b. Les Camponotus du Maroc (Hymenoptera: Formicidae): clé et catalogue des espèces. Ann. Soc. Entomol. Fr. (N.S.) 32: 87-100 (page 92, Raised to species)
  • Emery, C. 1925e. I Camponotus (Myrmentoma) paleartici del gruppo lateralis. Rend. Sess. R. Accad. Sci. Ist. Bologna Cl. Sci. Fis. (n.s.) 29: 62-72 (page 63, Combination in C. (Myrmentoma))
  • Emery, C. 1925e. I Camponotus (Myrmentoma) paleartici del gruppo lateralis. Rend. Sess. R. Accad. Sci. Ist. Bologna Cl. Sci. Fis. (n.s.) 29: 62-72 (page 63, Subspecies of piceus)
  • Forel, A. 1894d. Les Formicides de la Province d'Oran (Algérie). Bull. Soc. Vaudoise Sci. Nat. 30: 1-45 (page 3, [Junior primary homonym of crassinodis Forel, 1892j: 230.] )
  • Forel, A. 1909k. Études myrmécologiques en 1909. Fourmis de Barbarie et de Ceylan. Nidification des Polyrhachis. Bull. Soc. Vaudoise Sci. Nat. 45: 369-407 (page 374, Replacement name for crassinodis)
  • Forel, A. 1916. Fourmis du Congo et d'autres provenances récoltées par MM. Hermann Kohl, Luja, Mayné, etc. Rev. Suisse Zool. 24: 397-460 (page 458, Combination in C. (Orthonotomyrmex))
  • Karavaiev, V. 1912a. Ameisen aus Tunesien und Algerien, nebst einigen unterwegs in Italien gesammelten Arten. Rus. Entomol. Obozr. 12: 1-22 (page 20, male described)
  • Santschi, F. 1929e. Fourmis du Maroc, d'Algérie et de Tunisie. Bull. Ann. Soc. Entomol. Belg. 69: 138-165 (page 164, queen described)
  • Santschi, F. 1929e. Fourmis du Maroc, d'Algérie et de Tunisie. Bull. Ann. Soc. Entomol. Belg. 69: 138-165 (page 164, Subspecies of piceus)
  • Seifert, B. 2019. A taxonomic revision of the members of the Camponotus lateralis species group (Hymenoptera: Formicidae) from Europe, Asia Minor and Caucasia. Soil Organisms 91: 7-32 (DOI 10.25674/so-91-1-02).