74 BULLETIN" 128, UNITED STATES NATIONAL MUSEUM. 



Genus LASIONYCTERIS Peters.^' 



1866. Lasionycteris Peters, Monatsber. k. preuss. Akad. Wis- 

 sensch. Berlin (1865), p. 648. Type, Vespertilio noctivagans 

 LeConte. 



*Lasionycteris noctivagans (LeConte), (Silver-haired Bat.) 



1831. V[espertilio] Jioctivagans LeConte, McMurtrie's Cuvier, 



Animal Kingdom, vol. 1, p. 431. 

 1885. Vesperugo noctivagans True, Proc. U. S. Nat. Mus., 



vol. 7 (1884), p. 602. 1885. 

 1894. Lasionycteris noctivagans H. Allen, Monogr. Bats N. 



Amer. (1893), p. 105. March 14, 1894. 

 Type Locality. — -Eastern United States. 

 Range. — North America north of Mexico, from the Atlantic 



to the Pacific; probably not breeding south of the transition 



zone. 



Genus PIPISTRELLUS Kaup.^^ 



1829. Pipistrellus KIaup, Skizzirte Entw.-Gesch. u. natiirl. 

 Syst. europ. Thierw., vol. 1, p. 98. Type, Vespertilio pipi- 

 strellus Schreber. 



t*Pipistrellus hesperus hesperus (H. Allen). 



1864. Scotophilus hesperus H. Allen, Monogr. Bats N. Amer., 



p. 43. June, 1864. 

 1885. Vesperugo hesperus True, Proc. U. S. Nat. Mus., vol. 7 



(1884), p. 602. 1885. 

 1897. Pipistrellus hesperus Miller, North Amer. Fauna, No. 13, 



p. 88. October 16, 1897. 

 Type Locality. — Old Fort Yuma, Imperial County, California, 



on right bank of Colorado River, opposite present town of 



Yuma, Arizona. 

 Range. — ^Lower Austral zone in the western United States 



from southern and western Texas to the Pacific coast. Limits 



of range imperfectly known. 



Pipistrellus hesperus apus EUiot. 



1904. Pipistrellus hesperus apus Elliot, Field Columb. Mus., 



publ. 90, zool. ser., vol. 3, p. 269. March 8, 1904. 

 Type Locality. — Providencia Mines, Sonora, Mexico. 



« Revised by Miller, North Amer. Fauna, No. 13, pp. 85-87, Oct. 16, 1897. 

 « Revised by Miller, North Amer. Faima, No. 13, pp. 87-95, Oct. 16, 1897. 



