Layout Creek Ranger Station (T. 9 S., R. 28 E., Sec. 2, Carbon 

 Co. MT; elevation: 1300 m) is located in the south district of 

 the Bighorn Canyon NRA approximately 13 km north of the Wyoming 

 border. A one-half acre pond at this site was netted seven times 

 between 30 June and 4 September, and was the only location where 

 Euderma maculatum was captured (Table 5) . An adult female was 

 captured on 26 July and a juvenile female was captured on 16 

 August. The juvenile specimen was collected (University of 

 Montana Zoological Museum # 17504) . 



Table 5. — Bats Captured at Layout Creek Ranger Station, 



Total 



18 



24 



The sewage lagoon (T 58 N. , R. 95 W. Sec. 36, Bighorn Co., WY . 

 Elevation: 1100 m) is a small asphalt-lined pond near the 

 Horseshoe Bend Czunpground in the Bighorn Canyon NRA. This pond 

 is surrounded by sagebrush grassland and red-desert salt shrub, 

 and was netted three times between 29 June and 27 August (Table 

 6) . While no specimens of Euderma maculatum were captured here, 

 they were observed in the area on several occasions (Fig. 2) . 



TABLE 6. — Bats Captured at Horseshoe Bend Campground 

 Species Males Females Total 



Myotis lucifuqus 2 9 



Mvotis ciliolabrum - 1 



Lasiurus cinereus 1 1 



Eptesicus fuscus 3 1 



Lasionycteris noctivaqans 2 1 



Antrozous pallidus 4 



11 

 1 

 2 

 4 

 3 

 4 



Total 



12 



13 



25 



Kruger Pond (T. 8 S., R 28 E., Sec. 8, Carbon Co., MT. 

 Elevation: 2400 m) is located in an opening of subalpine meadow 



14 



