Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 21 - 80
Comments: Known from about thirty-six total sites in California, only twenty-four of which are recently confirmed extant and from fewer than five occurrences in Baja California, Mexico (California Natural Diversity Database, May/1998 report).
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