E. T. CRESSON, JR. 71 



Originally described from Europe. On comparing our material 

 with some specimens from Europe, I cannot detect any differ- 

 ential characters of specific or even varietal importance. 



Specittiens Examined. — 58 d^ , 49 9 ■ 



Canada: Aweme, Manitoba, June 24, (E. Criddle), [Criddle]. Rigaud, 

 July 27, [Johnson]. 



Massachusetts: Wellesley, August 15, [B. S. N. H.]. 



Connecticut: Middletown, June 17, (C. W. Johnson); New Haven, 

 October IS, (C. M. Allen), [all B. S. N. H.]. 



Xew York: Clifton Springs, August; Ithaca, June; Woodwardia Bog, 

 Tompkins County; Ellis to Slaterville, June; Slaterville to Caroline, June; 

 Malloryville, Tompkins County, June, [all Cornell]. 



New Jersey: Leonia, May 15, (E. R. Kalmbach), [Biol. Surv.]. River- 

 ton, June 15, [A. N. S. P.]. 



Pennsylv.\nia : Lansdale, May IG; Swarthmore, July 28, (all Cresson), 

 [all A. N. S. P.]. 



Maryland: Beltsville, September 10; Plummer's Island, April 20; Near 

 Plummer's Island, September 29; (all \V. L. McAtee), [all Biol. Surv.]. Chain 

 Bridge, Montgomery County, September 24, (L. O. Jackson; on flowers of 

 Pontederia cordata), [Biol. Surv.]. 



District of Columbia: Eastern Branch near Benning, August 29, W. L. 

 McAtee), [Biol. Surv.]. 



Virginia: Dyke, May 28 to July 16, (W. L. McAtee); Great Falls, Aug- 

 ust 1; Great Falls to Difficult Run, Julj^ 25; Maywood, Alexandria County, 

 June 2; (all W. L. McAtee), [all Biol. Surv.]. 



North Carolina: Hertford, June 9, [Johnson]. 



Georgia: Silver Lake, Fulton County, August 10; St. Simon Island, 

 April 22 to May 12, (J. C. Bradley); Thalman, April 8; [all Cornell]. 



Florida: Miami, February 10, [A. N. S. P.]. St. Petersburg, August 12, 

 (J. C. Bradley), [Cornell]. 



Louisiana: Vinton, 14 miles south, September 7, (E. G. Holt), [Biol. 

 Surv.]. 



Illinois: Northern, [A. N. S. P.]. 



Kansas: (E. W. G.), [A. N. S. P.]. 



Dakota: [A. N. S. P.]. 



Nebraska: Fremont, [Cornell]. 



Colorado: Grant, Geneva Park, 10,000 feet alt., August 19, (E. C. Jack- 

 son), [Biol. Surv.]. 



Washington: Mt. Rainier, October 14, (L. O. Jackson), [Biol. Surv.]. 



Texas: Round Mountain, [A. N. S. P.]. 



Arizona: [A. N. S. P.]. 



California: Berkeley Hills, April 11, (E. T. Cresson), to September 19, 

 (J. C. Bradley), [A. N. S. P. and Cornell]. Pacific Grove, October 7, (J. C. 

 Bradley), [Cornell]. Redwood Canyon, Marin County, May 17, (Cresson), 

 [A. N. S. P.]. 



Mexico: Guadalajara, September 6, (McClendon), [A. N. S. P.]. 



trans, am. ent. soc, xlvi. 



