1910.] NATURAL SCIENXES OF PHILADELPHIA. 439 



and southeastern Ontario (Welland), south to North Carolina (Sulphur 

 Springs, Tryon, Raleigh and Wilmington 25 ), and as far as available 

 material is concerned not extending west of the Appalachians, all the 

 specimens examined from west of that range belonging to other forms, 

 while it is quite possible that Caulfield's Welland, Ontario, record 

 belongs to /. borealis. At Raleigh it meets the range of /. uhleriana 

 fulvescens, typical specimens of each and others about intermediate and 

 not easy to place being in the series from that locality. The months 

 represented in the series examined extend from April to July. 



Remarks. — The identity of unicolor with uhleriana has been estab- 

 lished by Scudder, and breeding experiments by Caudell have demon- 

 strated the specific identity of uhleriana and Temnopteryx virginica, 

 which latter was based on the short-winged female. The size variation 

 in the species is moderate, and in color the large series examined is 

 quite uniform, at least in the male sex. Saussure's uhleriana. appears 

 to be limited to the costal plain, Piedmont country and mountain 

 valleys replaced to the southward and in the middle and lower Mis- 

 sissippi Valley region by /. u. fulvescens, which reaches its extreme 

 development in Texas, and with which it apparently intergradates. 



Specimens examined. — -One hundred and twenty-three; one hundred 

 and seventeen males, seven females: 



Lakehurst, N. J. Two males, one female. (Brooklyn Inst. Arts 

 and Sci.) 



New Jersey. One male. (A. N. S. P.) 



Ridley Township, Delaware County, Pa. One male. (A. N. S. P.) 



Delaware. Tnree males. (A. N. S. P.) 



Plummer's Island, Md. One male. (U. S. N. M.) 



Tryon, N. C. Six males. (U. S. N. M.) 



Raleigh, N. C. Seven males, five females. 28 (Hebard Collection.) 



Sulphur Springs, N. C. Ninety-two males. (Hebard Collection.) 



Wilmington, N. C. One female. 28 (Brooklyn Inst. Arts and Sci.) 



North Carolina. Five males (Bruner Collection.) 



Isehnoptera uhleriana fulvescens Saussure and Zehntner. 



1877. Ischtwptera unicolor Scudder (not of Saussure, 1S62), Proc. Boston 



Soc. Nat. Hist., XIX, p. 92. [Fort Reed, Fla.] 

 1893. Isehnoptera uhleriana var. fulvescens Saussure and Zehntner, Biol. 



Cent.-Amer., Orth., I, p. 36, pi. Ill, figs. 2 and 3 (tf). [Georgia; Texas; 



New Mexico. 27 ] 



25 The latter record is a tentative one, as it is based on a female, and /. u. fulves- 

 cens is separated only with great difficulty in that sex. 



28 Females from these localities are only tentatively assigned to typical uhler- 

 iana, as in that sex no valid character for separating u. fulvescens has been found. 



27 The localities given are for the species, no particular locality being cited 

 for the variety. 



