Crematogaster cedrosensis

Crematogaster cedrosensis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Crematogastrini
Genus:	Crematogaster
Species:	C. cedrosensis
Binomial name
Crematogaster cedrosensis Wheeler, W.M., 1934

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Mexico (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.

Nomenclature

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

• cedrosensis. Crematogaster lineolata subsp. cedrosensis Wheeler, W.M. 1934f: 136 (w.) MEXICO (Baja California).
  • Type-material: lectotype worker (by designation of Ward & Blaimer, 2022: 911), 7 paralectotype workers.
  • [Note: Ward & Blaimer, 2022: 911, cite 4w CASC, 2w LACM, 1w MCZC syntypes.]
  • Type-locality: lectotype Mexico: Baja California, Cedros I., 5.vi.1925 (H.H. Keifer); paralectotypes with same data.
  • Type-depositories: CASC (lectotype); CASC, LACM, MCZC (paralectotypes).
  • Subspecies of lineolata: Wheeler, W.M. 1935g: 22.
  • Subspecies of opaca: Enzmann, J. 1946c: 94; Bolton, 1995b: 150.
  • Junior synonym of laeviuscula: Morgan & Mackay, 2017: 197.
  • Status as species: Ward & Blaimer, 2022: 911.
  • Distribution: Mexico.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Length 3-3.5 mm.

Related to Crematogaster laeviuscula, but differing as follows: Smaller and less robust, with smaller head and narrower thorax, the mesoepinotal constriction less pronounced both dorsally and laterally; the carina on the mesonotum shorter, very prominent and often tooth-like in profile; epinotal spines much shorter, not longer than the base of the epinotum, very thin and acute, straight and much less diverging posteriorly; petiole narrower, trapezoidal, less cordate anteriorly. Smoother and more shining than laeviuscula, but cheeks and clypeus more sharply longitudinally rugulose, petiole subopaque and finely punctate. Pubescence on scapes and legs less abundant, finer and appressed. Color much darker, being castaneous brown, with darker head; antennal clubs and gaster, except at the base, black; legs slightly paler brown than the thorax.

Type Material

Eight specimens from Cedros Island (VI.5.'95).

References

• Enzmann, J. 1946c. Crematogaster lineolata cerasi, the cherry ant of Asa Fitsch; (with a survey of the American forms of Crematogaster, subgenus Acrocoelia). J. N. Y. Entomol. Soc. 54: 89-97 (page 94, Subspecies of opaca)
• Ward, P.S., Blaimer, B.B. 2022. Taxonomy in the phylogenomic era: species boundaries and phylogenetic relationships among North American ants of the Crematogaster scutellaris group (Formicidae: Hymenoptera), Zoological Journal of the Linnean Society 194(3): 893–937 (doi:10.1093/zoolinnean/zlab047).
• Wheeler, W. M. 1934f. Ants from the islands off the west coast of Lower California and Mexico. Pan-Pac. Entomol. 10: 132-144 (page 136, worker described)