212 E. B. WILLIAMSON. 



1 I , Morton, Pa. ; July 17, 1886. Dr. P. P. Calvert. 



2 9 , Sandusky, Ohio ; May 25, 1896. E. B. Williamson. 



7 S , 6 9 , Sandusky, O. ; June 17, July 12, 1899. R. C. Osburn. 



2 S , 4 9, Sandusky, O. ; June 19, July 24, 1899; J. S. Hine, 

 collector. Ohio State University. 



3 $,2 9, Sandusky, O. ; July 9-10, 1896; R. C Osburn, col 

 lector. E. B. Williamson. 



1 % , Sandusky, O. ; ,Tune 28, 1900 ; J. S. Hine, collector. Ohio 

 State University. 



1 1,1 9, Winchester, 111.; July 12, 1894; F. M. McElf'resh, 

 collector. C. C. Adams. 



1 Z , Bloomington, III. ; June 29, 1895 ; M. J. Elrod, collector. 

 C. C. Adams. 



2 S , 1 9 , Havana, 111. ; July 10-17, 1897. C. C. Adams. 



1 I , Straw Plains, Tenn. ; September 30, 1900. C. C. Adams. 



2 % , Cumberland River, Nashville, Tenn. ; September 19 and 

 30, 1900. E. B. Williamson. 



1 % , Maryland ; 1860 ; Uhler, collector. M. C. Z. 



1 % ,1 9 , Maryland ; Hagen. M. C. Z. 



1 S, Marshall Hall, Maryland; June 11, 1899; Wood, collec- 

 tor. U. S. Nat. Mus. 



1 I , Bladensburg, Md. ; September 10, 1897 ; H. Barber, collec- 

 tor. U. S. Nat. Mus. 



1 % , Richmond, Va. ; O. A. Stecker, collector. M. C Z. 



1 S , Washington, D. C. ; September 27, 1896. U. S. Nat. Mus. 



1 % , Florida. C. C. Adams. 



1 I , Florida; Banks. U. S. Nat. Mus. 



1 ^ , 1 9 , Texas. Acad. Nat. Sci. Phila. 



This species is also known from South Carolina. 



SYNONYMIC NOTES. 



Stylurus segregcms Needham, Canadian Entomologist, Vol. xxix, 

 No. 8, p. 185, 1897. A synonym of spiniceps. 



Gomphm jiavlalU Walsh, Proc. Acad. Phila., p. 394, 1862. As 

 determined by Hagen and Selys (Quatr. Add. Syn. Gomph., pp. 60 

 and 61, or 465 and 466), this is a synonym of notat us. As detected 

 by Hagen {l. c), Walsh in describing his fliivialis had one female 

 of p lag iatus. It was from this fenuUe apparently that Walsh de- 

 scribed the vulvar lamina of the species. 



