Fes., 1912. Mammats or ILLInois AND WISCONSIN— Cory. 465 
Genus PIPISTRELLUS Kaup. 
Pipistrellus Kaup, Skizzirte Entwick-Gesch. u. Nattirl. Syst. d. Europ. 
Thierw., I, 1829, p. 98. Type Vespertilio pipistrellus Schreber. 
Ears tapering; tragus nearly straight; about one-third of inter- 
femoral membrane sparsely furred, the terminal two-thirds bare; 
mamme, 2. 
Et 2 
=2 373_ 
ar Pm. Pea ne 34. 
Dental formula: I. —, Ci 
A single species belonging to this genus occurs within our limits. 
Pipistrellus subflavus (F. Cuvier): 
GEORGIAN Bat. 
Viespertilio] subflavus F. Cuvier, Nouv. Ann. Mus. d’Hist. Nat. Paris, I, 1832, p. 17. 
Vesperugo georgianus TRUE, Proc. U. S. Nat. Mus., VII, 1884 (1885), p. 602. 
Vesperugo carolinensis EVERMANN & BUTLER, Proc. Ind. Acad. Sci., 1893 (1894), 
p. 135 (Indiana). H. ALLEN, Bull. U. S. Nat. Mus., No. 43, 1893, p. 121 (not 
Vespertilio carolinensis Geoff.) (Cairo, Illinois). Ruoaps, Journ. Cincin. Soc. 
Nat. Hist., 1897, p. 60 (Kentucky). 
Pipistrellus subflavus MILLER, N. Amer. Fauna, No. 13, 1897, p. 92 (Missouri, 
Tennessee, etc.). Hann, Ann. Rept. Dept. Geol. & Nat. Resources Ind., 
1908 (1909), p. 629 (Indiana). Howe LL, Proc. Biol. Soc. Wash., XXII, 1909, 
p. 67 (Tennessee). Jb., XXIII, 1910, p. 33 (Missouri, Illinois, Kentucky). Woop, 
Bull. Ill. State Lab. Nat. Hist., VIII, 1910, p. 595 (Illinois). HoLListTEr, 
Bull. Wis. Nat. Hist. Soc., VIII, 1910, p. 31. 
Scotophilus georgianus STRONG, Geol. Wis., Surv. 1873-79, I, 1883, p. 438 (Wis- 
consin). 
Type locality — Eastern United States—Supposed to be Georgia. 
Distribution — Eastern United States, from southern New York and 
Illinois south to the Gulf states and west to Missouri and eastern 
Texas. 
Description — Size small; basal third of interfemoral 
membrane sparsely covered with fur, the terminal 
two-thirds bare; general color yellowish brown 
(more or less variable), paler on under parts; tragus 
long, narrow and tapering. 
Measurements — Total length, about 3.35 in. (85 mm.); tail, 1.58 in. 
(40 mm.); foot, .30 in. (7.5 mm.). 
This species is common in southern Illinois and probably occurs 
throughout the greater portion of the state, although thus far it has 
not been recorded from the northern part. The Field Museum col- 
