Feb., 191 2. Mammals of Illinois and Wisconsin — Cory. 465 



Genus PIPISTRELLUS Kaup. 



Pipistrelliis Kaup, Skizzirte Entwick-Gesch. u. Natiirl. Syst. d. Europ. 



Thierw., I, 1829, p. 98. Type Vespertilio pipistrelliis Schreber. 



Ears tapering; tragus neariy straight; about one-third of inter- 

 femoral membrane sparsely furred, the terminal two-thirds bare; 

 mammae, 2. 



2 — 2 I — I 2 — 2 '\~ '^ 



Denial formula: I. > C. > Pm. > M.^^ — -=-xa. 



Z-i i-i 2-2 3-3 



A single species belonging to this genus occurs within our limits. 



Pipistrellus subflavus (F. Cuvier). 

 Georgian Bat. 



V[espertilio] 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). Rhoads, Journ. Cincin. Soc. 

 Nat. Hist., 1897, p. 60 (Kentucky). 



Pipistrellus subflavus Miller, N. Amer. Fauna, No. 13, 1897, p. 92 (Missouri, 

 Tennessee, etc.). Hahn, Ann. Rept. Dept. Geol. & Nat. Resources Ind., 

 1908 (1909), p. 629 (Indiana). Howell, Proc. Biol. Soc. Wash., XXII, 1909, 

 p. 67 (Tennessee). /&., XXIII, 1910, p. 33 (Missouri, Illinois, Kentucky). Wood, 

 Bull. 111. State Lab. Nat. Hist., VIII, 1910, p. 595 (Illinois). Hollister, 

 Bull. Wis. Nat. Hist. Soc, VIII, 1910, p. 31. 



Scotophilus georgianus Strong, Geol. Wis., vSurv. 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 



^^^^f*'*^'^'*^ (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- 



