New Mexico Butterflies: Checklist, Distribution and Conservation
Journal31(1-2):57-82, of Research 1992 on the Lepidoptera 31(1-2):57-82, 1992 57 New Mexico butterflies: checklist, distribution and conservation Steven J. Cary 4 Encantado Court, Santa Fe, New Mexico 87505 Richard Holland 1625 Roma NE, Albuquerque, New Mexico 87106 Abstract. This systematic list is intended to include every butterfly taxon observed in New Mexico. New Mexico has one of the most diverse butterfly faunas in the United States, with about 300 species. Taxon distribution in New Mexico is provided at the county level. Conservation status and concerns in New Mexico are also presented. The validity of questionable reports from this state are discussed and resolved where possible. ABOUT NEW MEXICO New Mexico (NM) is the fifth largest state in the United States. Because of its location, NM supports elements of several regional butterfly faunas, including Great Plains, southern Rocky Mountains, Great Basin and Colo- rado Plateau, Sonoran and Chihuahuan Deserts, and Sierra Madre. Land surface elevations range from 914 m to 4012 m above sea level, supporting life zones from lower Sonoran to Arctic. Annual precipitation varies, primarily with latitude, from less than 25 cm to more than 110 cm. Number of frost free days varies locally from less than 80 to more than 220. The Continental Divide crosses the state from north to south and provides headwaters for major drainage basins such as the Colorado River, Rio Grande, Pecos River, and Arkansas River. Proximity to Mexico allows frequent summer influxes of subtropical species. NM has always been a rural state with few resident lepidopterists.
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