7764232522_23b253c43e 7764231728_f95d4a4daf_s
Photo © Ken-ichi Ueda, some rights reserved
Briones Regional Park, Contra Costa County, CA, USA (Google, OSM)
37.954302, -122.147389
open

Description

Hope I've got this ID right, I don't know anything about ants, but the giant spines on the thorax seem pretty distinct. Maybe 7 mm tops.

Aug. 12, 2012 20:27:31 +1200
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Comments & Identifications

1-thumb
Messor andrei - Photo (c) California Academy of Sciences, 2000-2010, some rights reserved (CC BY-NC-SA)
kueda's ID: Messor andrei [inactive], a member of Ants (Family Formicidae) (inactive taxon)
Posted by kueda about 2 years ago (Flag)
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This looks like a good ID. With the color, number of antenna parts, spikes, and how the body looks from the side, this looks like M. andrei. It is easily confused with genus Pogonomyrmex, but I don't think so this time.

Were there signs of harvesting of seeds?

Posted by curiousgeorge61 about 2 years ago (Flag)
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Yup, I definitely saw them carrying seeds around. Does Pogonomyrmex not carry seeds?

Posted by kueda about 2 years ago (Flag)
918-thumb

Just wondering: did you notice any interaction between the crickets in the second picture and the ants? I know some ants tolerate crickets in their colonies because the crickets groom the worker ants.

Posted by eagle300 about 2 years ago (Flag)
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They seemed a bit jumpy when they touched each other, but other than that no, didn't see any grooming or feeding or anything like that.

Posted by kueda about 2 years ago (Flag)
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Pogonomyrmex and Messor are both harvesters.

Posted by curiousgeorge61 about 2 years ago (Flag)
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Veromessor andrei - Photo (c) California Academy of Sciences, 2000-2010, some rights reserved (CC BY-NC-SA)
kueda's ID: Veromessor andrei, a member of Ants (Family Formicidae) Added as part of a taxon swap
Posted by kueda about 1 month ago (Flag)
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Veromessor andrei - Photo (c) California Academy of Sciences, 2000-2010, some rights reserved (CC BY-NC-SA)
curiousgeorge61's ID: Veromessor andrei, a member of Ants (Family Formicidae) Added as part of a taxon swap
Posted by curiousgeorge61 about 1 month ago (Flag)
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Identification Summary

Veromessor andrei - Photo (c) California Academy of Sciences, 2000-2010, some rights reserved (CC BY-NC-SA)
kueda's ID: Veromessor andrei, a member of Ants (Family Formicidae) Added as part of a taxon swap
Veromessor andrei - Photo (c) California Academy of Sciences, 2000-2010, some rights reserved (CC BY-NC-SA)
curiousgeorge61's ID: Veromessor andrei, a member of Ants (Family Formicidae) Added as part of a taxon swap
kueda has chosen to retain control over the taxa associated with their observations
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Data Quality Assessment

Community-supported ID? Yes
1 person agrees
0 people disagree
Date? Yes
Georeferenced? Yes
Photos or sounds? Yes
Is the organism wild/naturalized? Unknown
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Does the location seem accurate? Unknown
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Does the date seem accurate? Unknown
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Appropriate? Yes
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Observation © Ken-ichi Ueda
Cc-by_small some rights reserved

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