Acromyrmex versicolor ( Pergande, 1893 ),

Shattuck, Steve & Cover, Stefan, 2016, Taxonomy of some little-understood North American ants (Hymenoptera: Formicidae), Zootaxa 4175 (1), pp. 10-22: 11

publication ID

http://doi.org/10.11646/zootaxa.4175.1.2

publication LSID

lsid:zoobank.org:pub:011B74BE-40C0-4606-9354-C637F83C3E43

persistent identifier

http://treatment.plazi.org/id/03E5E90B-FF89-2339-FF3C-9E4BFE1E759A

treatment provided by

Plazi

scientific name

Acromyrmex versicolor ( Pergande, 1893 )
status

 

Acromyrmex versicolor ( Pergande, 1893) 

Atta versicolor Pergande, 1893: 31  . Syntype workers, Calamajué (as Calamujuet) [29°38′N 114°25′W], Baja California, Mexico (National Museum of Natural History) [https://www.antweb.org/specimen/CASTYPE00618].GoogleMaps 

Acromyrmex versicolor chisosensis Wheeler, W.M., 1907: 705  . Syntype workers, Chisos Mountains [29°16′N 103°18′W]GoogleMaps  , Texas (O.W. Williams); Terlingua [29°19′N 103°37′W]GoogleMaps  , Texas (W.M. Wheeler) (Museum of Comparative Zoology) [http://mczbase.mcz.harvard.edu/guid/ MCZ:Ent:21162]. New synonym. 

Wheeler (1907) established A. versicolor chisosensis  from a number of workers taken by Judge O. W. Williams in the Chisos Mountains of southwestern Texas, and a few workers taken by himself at Terlingua, also in southwestern Texas. His new subspecies was differentiated from typical versicolor  as being distinctly lighter and more yellowish in color, with much less pronounced sculpture and in having only a few (about 12) pointed tubercles on each side of the median gastral depression. Creighton (1950) pointed out that the number of gastral tubercles varies with the size of the worker in A. versicolor  and small workers of both taxa have a similar number of tubercles. Fowler (1988) was of a similar view. Although additional collections from western Texas would be helpful, an examination of current holdings of A. versicolor  has failed to convince us that Wheeler’s characters represent meaningful differences. The type material of A. chisosensis  seems to represent little more than pale (likely faded) and lightly sculptured individuals of A. versicolor  . Pending the discovery of evidence to the contrary, A. chisosensis  is best regarded as a synonym of A. versicolor  .

Acromyrmex versicolor  is known from northern Mexico (including Baja California) and the United States (Arizona, California, Texas)  .

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Acromyrmex

Loc

Acromyrmex versicolor ( Pergande, 1893 )

Shattuck, Steve & Cover, Stefan 2016
2016
Loc

Atta versicolor

Pergande 1893: 31
Loc

Acromyrmex versicolor chisosensis

Wheeler 1907: 705