Fig. 7. Habitats at collecting sites in the northern transect, Animas Valley, north of Lordsburg (table 2; figs. 3, 4; appendix 1), 22 August 1990. Top. Site 3, midpoint of the northern hybrid zone, looking E from NM Hwy 464. Bottom. Site 4, looking NW from NM Hwy 464; mesquite grassland.