Monomorium subopacum

Nomenclature

Species: Monomorium subopacum (Smith, 1858)

Usage: valid
Page number: 127

External links

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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 head length. Mandibles triangular. Mesosoma lacking erect hairs; entirely covered with punctate sculpture. Pronotal spines absent. Propodeum lacking spines or teeth. Waist 2-segmented. Petiole with peduncle; lacking large subpetiolar process. Postpetiole not swollen, in dorsal view not distinctly broader than long or distinctly wider than petiole.

Introduced species of the M. salomonis group are distinguished from M. ebeninum, M. floricola and M. liliuokulanii by its brownish yellow color and dull appearance caused by a uniformly punctate sculpture. They are distinguished from M. destructor by its uniformly dull and punctate head (versus smooth and shining), uniform color (versus contrasting dark gaster), and monomorphic worker caste. The M. salomonis group is most easily confused with M. pharaonis, but are distinguished from them by the lack of erect hairs on the mesosoma.

Look alikes

Monomorium subopacum, Monomorium pharaonis

Distribution

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