. Breviora. 24 BRFVIORA No. 466. 108 106 104 102 100 Figure 7. Distribution of the species in the mexicana group. State boundaries are shown as a dotted line, national borders as a broken line, and the extent of the Chihuahuan Desert (after Morafka, 1977) as a solid line. The Anticline of Arteaga is the band of mountains extending into the desert across southern Coahuila at about latitude 25°N. North of that is the Mapimian portion of the desert, and south of the Anticline is the Saladan portion of the desert (Morafka, 1977). Symbols denote only localities and not numbers of Please

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. Breviora. 24 BRFVIORA No. 466. 108 106 104 102 100 Figure 7. Distribution of the species in the mexicana group. State boundaries are shown as a dotted line, national borders as a broken line, and the extent of the Chihuahuan Desert (after Morafka, 1977) as a solid line. The Anticline of Arteaga is the band of mountains extending into the desert across southern Coahuila at about latitude 25°N. North of that is the Mapimian portion of the desert, and south of the Anticline is the Saladan portion of the desert (Morafka, 1977). Symbols denote only localities and not numbers of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University

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