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Psyche 
[December 
give a general idea of the female of cerberulus but it lacks 
the finer points which are necessary for the work that 
Wheeler attempted. 
In 1920 Wheeler had in his collection a number of males 
and females of Colobopsis taken in southern Arizona. 
These specimens came from Texas Pass in the Dragoon 
Mountains, Sabino Basin in the Santa Catalina Moun- 
tains and Black Dike Prospect in the Sierrita Mountains. 
The specimens from Texas Pass had been taken by Whfeeler 
at light. No field data accompanied the other specimens. 
Soon after Emery published his description of cerberulus, 
Wheeler identified the above specimens as that species. 
But no reference was made to them until 1934. In that 
year Wheeler published a paper (3) in which he attributed 
the Arizona material to cerberulus . He also described as 
cerberulus three major workers which Dr. Elizabeth Skwar- 
ra had collected near the city of Vera Cruz, Mexico. These 
specimens were taken in a hollow spine of Acacia sphaero- 
cephala. Wheeler’s association of the Arizona females with 
the Michoacan type was made on the basis of Emery’s des- 
cription. This could be defended, since the same caste was 
involved in each case, but the association of the Vera Cruz 
majors with cerberulus was a different matter. It was based 
on a comparison of the Vera Cruz majors with the Arizona 
females and on Wheeler’s unsupported belief that the 
former represented the unknown major caste of cerberulus. 
I was forced to deal with this extraordinary double asso- 
ciation when I was preparing the Colobopsis section of The 
Ants of North America (4). Since I could see no possibility 
of validating Wheeler’s treatment of the Vera Cruz majors, 
cerberulus was omitted from the key. I commented on 
certain geographical discrepancies, which made Wheeler’s 
association seem unlikely, but pointed out that there was 
little hope for bettering the matter until someone secured 
a nest of this ant in which both major worker and female 
were present. 
It was, therefore, very gratifying to find such a colony 
in Garden Canyon, Huachuca Mountains, in July 1950. 
This colony was a fragment of a larger one, to judge from 
those subsequently taken, for it contained only eight in- 
