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Square-headed wasp

Entomognathus sp.


About 4-6 millimeters in body length, colored as shown.


Several specimens were gleaning sweet exudates from the buds of common sunflower (Helianthus anuus) on a path of deep, sandy soil adjacent to an arroyo (dry riverbed). The riparian corridor runs through a large area of degraded shortgrass prairie with yucca, prickly-pear cacti, and scattered elm trees.


Identification suggested by Doug Yanega, University of California, Riverside.

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Spotted by

Colorado Springs, Colorado, USA

Spotted on Jul 14, 2013
Submitted on Jan 12, 2014


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