Perimyotis subflavus (F. Cuvier, 1832)

D, K D., M, M B., M, M L., P, B L., S, J M., E, J W. & A, L K., 2017, N R S S B 13 T C F V S S P, Occasional Papers of the Museum 351, pp. 1-12 : 7-8

Perimyotis subflavus (F. Cuvier, 1832)

American Perimyotis

The American Perimyotis is a year-round resident of Texas that has been documented from all of the vegetative regions with the exception of the far western reaches of the Trans-Pecos ( Schmidly and Bradley 2016). This species is known to hibernate in caves and box culverts throughout the winter within its range ( Sandel et al. 2001). Recent records in Lubbock, Presidio, Brewster, Moore, Potter, and Hutchinson counties suggest that the American Perimyotis may be expanding its range westward in the state ( Yancey et al. 1995; Schmidly 2004; Ammerman 2005; Demere et al. 2012). Perimyotis subflavus is one of seven bat species identified with diagnostic symptoms of WNS (www.whitenosesyndrome.org).

Burnet County.—An adult female P. subflavus (ASNHC 12670, ASK 18113) was collected on 5 March 2017 at Longhorn Caverns State Park (Permit # 2017-R3-04), 14.2 km southwest of Burnet, Texas. This voucher specimen represents a new county record for Burnet County. The P. subflavus population for the cavern system was estimated at 100 individuals.

Cass County.— On 27 January 2017, two American Perimyotis were observed roosting torpid at two locations in Cass County. The first individual was lo- cated in a Hwy 77 culvert (33.19392°N, 94.43376°W) located 7.4 km west of Douglassville , Texas. The second individual was observed roosting under a bridge on State Hwy 59 (33.05429°N, 94.29038°W) over Frazier creek 1.0 km northeast of New Colony , Texas. Although many voucher specimens have been taken from Cass County (Ammerman et al. 2012;www. batsoftexas.com), these observations are noteworthy winter documentations for the county .

Collingsworth County.—An adult male American Perimyotis (ASNHC 18115, ASK 12672) was collected from a gypsum cave located 22.1 km northeast of Wellington, Texas, on 13 January 2017. This individual represents a new county record and is one of the northernmost documentations of P. subflavus in Texas. In total, 30 P. subflavus were observed across four sites in Collingsworth County.

Freestone County.—On 23 January 2017, an adult female P. subflavus (ASNHC 18114, ASK 12671) was collected from a culvert along IH-45 (31.52346°N, 96.11293°W) 8.4 km northwest of Buffalo, Texas. A total of 712 P. subflavus were documented at this location. An additional 969 P. subflavus were documented across other sites in Freestone County. Although American Perimyotis has previously been documented in Freestone County ( Walker et al. 1996), to our knowledge no voucher specimens exist. Thus, this voucher specimen is considered as a new county record for Freestone County. This individual was negative for spores of P. destructans .

Harrison County.—On 26 January 2017, a P. subflavus was observed roosting in an IH-20 culvert (32.48579°N, 94.12468°W) 6.2 km west of Waskom, Texas. This bat was roosting at a height of 2.8 m and was not collected as a voucher due to its location. This observation provides additional support for a previous voucher from Harrison County ( Demere et al. 2012) and is the first locality-specific documentation of P. subflavus in the county.