|Subspecies of Monomorium carbonarium: Wheeler, 1905c PDF: 88; Forel, 1912h PDF: 3; Mann, 1922 PDF: 29; Wheeler, 1942 PDF: 198.|
In Costa Rica this is a moderately common species in disturbed areas in the seasonally dry northwest portion of the country. I have collected it in Santa Rosa National Park, where I observed workers recruiting to a dead grasshopper on an asphalt road. I also have records from Curu on the Nicoya Peninsula and La Pita on the road from the PanAmerican highway to Monteverde. I have never found a nest of the species.
- Fernández, F. (2007): Two new South American species of Monomorium Mayr with taxonomic notes on the genus. In: Snelling, R. R., Fisher, B. L., Ward, P. S. (Eds): Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. Memoirs of the American Entomological Institute 80, 128-145: 134-134, URL:http://plazi.org:8080/dspace/handle/10199/15383
Mexico south to Costa Rica, many Caribbean islands. Uncertain whether native in Costa Rica.
Diagnosis of worker among Antkey species. Worker caste monomorphic. Head shape ovoid. Antenna 12-segmented. Antennal club 3-segmented. Antennal scrobe lacking. Antennal insertions at least partly covered by frontal lobes; not surrounded by a raised sharp-edged ridge. Frontal lobes do not obscure face outline between mandible and eye Antennal scapes not conspicuously short; easily extended beyond eye level. Posterolateral corners of head unarmed, without spines. Eyes medium to large (greater than 6 facets); distinctly less than half head length. Mandibles triangular. Mesosoma with erect hairs; shining smooth lacking any areas covered with punctate sculpture. Pronotal spines absent. Propodeum lacking spines or teeth. Waist 2-segmented. Petiole with peduncle; lacking large subpetiolar process. Petiole length greater than petiole height. Postpetiole not swollen, in dorsal view not distinctly broader than long or distinctly wider than petiole. Color shiny dark brown to black.
Among introduced and commonly intercepted Monomorium, M. ebeninum can be distinguished from M. destructor, M. pharaonis and the M. salomonis group by its glassy smooth integument that lacks sculpture even on the mesosoma. Among smooth and shining Monomorium, M. ebeninum is distinguished from M. liliuokalanii by the petiole shape (which is distinctly longer than tall in profile) and from M. floricola by the uniformly dark brown to black color (versus bicolor with dark brown to black head and gaster and paler red or yellow mesosoma, waist and appendages).
This species is similar to M. compressum and, to a lesser extent, to M. cyaneum . A characteristic that appears to separate it from similar species is the petiolar profile, which in frontal view is flat to weakly concave.
Molecular Biology and Genetics
Statistics of barcoding coverage: Monomorium ebeninum
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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