Overview

Comprehensive Description

Taxonomic History

Monomorium minutum r. ebeninum Forel, 1891c PDF: 165 (in text) (w.) ANTILLES. AntCat AntWiki

Taxonomic history

Forel, 1893j PDF: 388 (q.); Forel, 1897b PDF: 300 (m.); Wheeler, 1905c PDF: 88 (q.m.).
Raised to species: Forel, 1913m PDF: 218; Hymenoptera: Formicidae). University of Kansas Science Bulletin 53:65-119. [1986-03-24]">DuBois, 1986 PDF: 103.
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Biology

Natural History:

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.

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Monomorium ebeninum Forel HNS

This species is similar to M. compressum HNS and, to a lesser extent, to M. cyaneum HNS . A characteristic that appears to separate it from similar species is the petiolar profile, which in frontal view is flat to weakly concave.

  • 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
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Distribution

Mexico south to Costa Rica, many Caribbean islands. Uncertain whether native in Costa Rica.

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Physical Description

Diagnostic Description

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 length."" class=""lexicon-term"">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 "" class=""lexicon-term"">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).

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Taxonomic Treatment

Fernández, F., 2007:
  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.
 
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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.

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Fernández, F.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Monomorium ebeninum

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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