Welcome to the new AntWeb!

We here at AntWeb have been busy working on our newest (and most ambitious) version of the site - and there are lots of great new things! Which means there are lots of changes (don't worry, they're all for the best).

And we've put together a handy little guide to show you all the new features and enhancements - why don't you have a quick look to check out all the new features and enhancements?

No thanks
Current View: Global: All Antweb
Change View
Cite this page

Citing AntWeb


To cite this page, please use the following:

· For print: . Accessed

· For web:

Species: Neivamyrmex opacithorax   (Emery, 1894) 

Download Data

See Also:

Neivamyrmex opacithorax castaneum

Taxonomic History (provided by Barry Bolton, 2015)

Eciton californicum subsp. opacithorax Emery, 1894d PDF: 184 (diagnosis in key) (w.) U.S.A. Nearctic. AntCat AntWiki HOL

Taxonomic history

Wheeler & Long, 1901 PDF: 163, 173 (m.q., respectively); Wheeler & Wheeler, 1984a PDF: 273 (l.).
Combination in Neivamyrmex (Neivamyrmex): Smith, 1942c PDF: 555; in Neivamyrmex: Borgmeier, 1953 PDF: 5.
Raised to species: Emery, 1900e: 186.
Senior synonym of Neivamyrmex castaneum: Borgmeier, 1955 PDF: 502.


collected from the Chiricahua Mtns, Cochise Co.


Habitat: Open, upland forest and woodlands, savannas, prairies, also parks and spacious campuses.

Natural History: Also relatively common and well-known, the habits of N. opacithorax are quite similar to those of N. nigrescens. Males are bicolored, black with a reddish-brown gaster, and may be seen flying on calm, cool, sunny, late summer or early fall days.



Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Neivamyrmex opacithorax   Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: -1, (download) -1 21008
Neivamyrmex opacithorax   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, (download) 486-487 21290

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in road edge in mesophyl forest, 2 times found in 2Âș wet forest, 1 times found in grazed creosote desert, 1 times found in oak pine juniper woodland, 1 times found in pine-oak forest, 2 times found in swamp forest, 1 times found in oak-pine-juniper forest, 1 times found in old sawdust amid slabs, 1 times found in Ponderosa Pine for. 50' tall. Dry creekbed w / shrubby lonicera + Robinia unders, 0 times found in Desert canyon forest, ...

Collected most commonly using these methods or in the following microhabitats: 4 times search, 2 times Baiting, 2 times Berlese, 1 times Search, subterranean raid, 1 times general collecting, 1 times Malaise trap, 0 times under rock

Elevations: collected from 6 - 1960 meters, 1206 meters average

Type specimens: syntype of Eciton californicum opacithorax: casent0903735

(-1 examples)

See something amiss? Send us an email.
Enlarge Map