Figures 13 a-b, 44, 59, 72, 86, 1110, 111, 121, 135, 146, 150, 151
Eciton clavicornis Norton HNS , 1868: 46 (w). MEXICO, Vera Cruz, Hacienda Potrero (types lost?).
Eciton mexicanus HNS : Dalla Torre, 1893: 4. Forel, 1899: 27.
Eciton aztecum Forel HNS , 1901: 49 (m). GUATEMALA , San Jose ( MHNG ) .
1982: 197 - 247. Watkins, 1985: 479 - 502. Misidentification
DISTRIBUTION (Map. 2)
UNITED STATES: Arkansas and Mississippi west to southern Arizona; MEXICO: border states south to Chiapas; south to BRAZIL and PARAGUAY.
We have 56 records of this wide-ranging species in the United States.
The male type of Labidus mexicanus HNS , described from Orizaba, Mexico by F. Smith (1859), has been examined. It is a specimen of N. swainsonii (Shuckard) HNS , not a form of N. pilosus HNS . Accordingly, L. mexicanus HNS is removed to the synonymy of that species.
We have examined both males and workers from throughout the extensive range of this species. We have found that the features distinguishing the several recognized subspecies form a continuum from north to south, with no clear demarcation for any of these features. Accordingly, all these are here placed in synonymy.
Watkins (1985) indicated on his map of the distribution of N. pilosus mexicanus HNS that this ant had been collected from California. We have examined the specimens, purportedly collected at Exeter, Tulare County, and concur that they are N. pilosus HNS . However, it is our opinion that these males are probably incorrectly labeled and we have not included California within the distribution of N. pilosus HNS .
- Snelling, G. C., Snelling, R. R. (2007): New synonymy, new species, new keys to Neivamyrmex army ants of the United States. 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, 459-550: 488-489, URL:http://atbi.biosci.ohio-state.edu/HymOnline/reference-full.html?id=21290
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