Neivamyrmex opacithorax (Emery)

Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550 : 486-487

publication ID

21290

DOI

https://doi.org/10.5281/zenodo.6246865

persistent identifier

https://treatment.plazi.org/id/0B973F12-F276-712E-F01E-A609C3A71C40

treatment provided by

Christiana

scientific name

Neivamyrmex opacithorax (Emery)
status

 

Neivamyrmex opacithorax (Emery) View in CoL   HNS

Figures 108, 109, 120, 134, 145

Eciton (Acamatus) californicum subsp. opacithorax Emery   HNS , 1894: 184 (w, in key). U. S. A., Missouri, Doniphan ( MHNG). Emery, 1895 b: 259. Pergande, 1895: 874. Forel, 1899: 28 .

Eciton (Acamatus) opacithorax   HNS : Emery, 1900 a: 524; Emery, 1910: 25. Wheeler & Long, 1901: 163, 173 (w, q). Wheeler, 1908 b: 411 (m). M. R. Smith, 1924: 84. Mallis, 1941: 62.

Eciton (Acamatus) carolinense   HNS : Wheeler, 1921: 314 (q). Misidentification

Eciton (Neivamyrmex) opacithorax   HNS : M. R. Smith, 1932: 555 (w, q, m). M. R. Smith, 1951 [in Muesebeck, et al.]: 781. Buren, 1944: 180. Creighton, 1950: 74.

Eciton (Acamatus) opacithorax var. castaneum Borgmeier   HNS , 1939 a: 416 (w). COSTA RICA, San Jose ( MCSN) .

Eciton (Acamatus) californicum   HNS : Mallis, 1941: 62 (w). Misidentification

Eciton (Neivamyrmex) californicum   HNS : M. R. Smith, 1942: 560 (w). Misidentification

Eciton (Neivamyrmex) opacithorax subsp. castaneum   HNS : Borgmeier, 1948: 191 (w, q m). COSTA RICA, San Jose.

Neivamyrmex opacithorax   HNS : Borgmeier, 1953: 6. Watkins, 1972: 349; Watkins, 1976: 16, 22. Watkins, 1985: 482, 484.

DISTRIBUTION (Map 10)

UNITED STATES: Virginia and Tennessee, south to Florida, west to California; MEXICO (Baja California, Jalisco); GUATEMALA; COSTA RICA. SPECIMENS EXAMINED

We have 51 records from within the United States.

DISCUSSION

Although N. opacithorax   HNS is a widespread species it is not as commonly encountered as other members of the N. nigrescens   HNS group. Within the group it is readily recognized by the distinctively shaped mandible and the shiny head. It is presumably a raider on other ant species. Workers of this species were discovered during the processing of a number twig cuttings which contained a colony of Pseudomyrmex championi (Forel)   HNS in Guatemala. It is unknown if the Neivamyrmex   HNS were actively entering the colony while it was intact or if the raiding began as the twigs were cut and collected for processing (P. S. Ward, pers. comm.).

Automontage images of N. opacithorax   HNS may be viewed at antweb. org.

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

MCSN

Italy, Genova, Museo Civico di Storia Naturale

MCSN

Italy, Genova, Museo Civico di Storia Naturale

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Neivamyrmex

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