The Mexican Big-Eared Bat in Arizona

Roosts of Allen's Lappet‐Browed Bat in Northern Arizona

“…However, Allen's lappet-browed bat is not limited to ponderosa pine forests and is known to inhabit lower elevation deserts and woodlands (Barbour andDavis 1969, Hoffmeister 1986). Maternity colonies have been observed in boulder piles (Commissaris 1961), in cliff faces (C. L. Chambers, Northern Arizona University, unpublished data; M. Siders, Bureau of Land Management, unpublished data), and in abandoned mines (Cockrum and Musgrove 1964) at lower elevations in Arizona. Females form maternity colonies in early summer; young are born in mid-to late June and become volant by late July (Barbour andDavis 1969, Hoffmeister 1986).…”

Geographic Variation in the Lappet-Eared Bat, Idionycteris phyllotis, with Descriptions of Subspecies

“…Hoffmeister (1986: 106) noted that specimens taken near Portal (Cochise Co.), Arizona, below elevations supporting woodlands "may represent areas where drinking water was available rather than being preferred habitat." Commissaris (1961) rather accurately predicted probable Arizona distribution (of the central population as defined herein) based on forest habitat type, and Jones (1965) noted that >90% of specimens were collected in evergreen forests, almost 10% in evergreendeciduous woodland, but none in xericshrub grassland. Thus, habitat in the lower Sonoran biotic zone in Mohave Co., Arizona, was considered at the time to be atypical for I. phyllotis (Cockrum and Musgrove, 1964), but lower Sonoran habitat also was noted in the Grand Canyon region (Ruffner and Carothers, 1975).…”

“…or pine-oak (Quercus sp.) woodlands (Commissaris, 1961;Findley et aI., 1975;Jones, 1965). Hoffmeister (1986: 106) noted that specimens taken near Portal (Cochise Co.), Arizona, below elevations supporting woodlands "may represent areas where drinking water was available rather than being preferred habitat."…”

“…forest and oak (Quercus sp.) woodland (Commissaris, 1961;Jones, 1965), to southeastern Arizona and westcentral New Mexico, probably through Chihuahua, Mexico, then northern Durango south to Jalisco and Distrito Federal in the Sierra Madre Oriental, Sierra Madre Occidental, and transverse volcanic belt of Mexico (Fig.3 ).…”

“…Only three specimens had been collected when Cockrum (1956) reported the first record of the species from the United States, a specimen from Cochise Co., Arizona. Commissaris (1961) reported distribution and forest-habitat associations of 32 additional specimens from southeastern Arizona and predicted occurrence of this bat as far north as flagstaff, Arizona, a prediction borne out by Hayward and Johnson (1961) and Findley and Jones (1961). Jones (1961) also reported the species from forest habitats at four locations in Catron Co., New Mexico.…”