"Colletes inaequalis is a common vernal bee in the earliest days of spring. Females construct nests in grassy areas such as lawns, cemeteries, and gardens. Nesting aggregations can be huge (with several thousand nests) and dense (with over 100 nests in a square meter). If you are lucky enough to find these bees nesting in your yard, don't try to kill them; they won't sting, and they are probably good for soil aeration. They are also fun to watch!" (New York State Biodiversity Research Institute)
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