214 PROCEEDINGS OF THE NA TIONAL M USE UM. VOL. xx. 



spot, the spines black in the apical half, crowded, eleven to sixteen, 

 usually twelve to thirteen, in number in the outer series. Extremity of 

 male abdomen a little clavate, a little recurved, the supraaual plate 

 triangular, acutangulate at tip, with strongly elevated and sharp sub- 

 median ridges on either side of the deep, narrow, and subequal median 

 sulcus, which fades and widens apically; furcula consisting of the 

 slightly tumid attingent portions of the mesially divided last dorsal 

 segment, each produced posteriorly as a triangular tooth projecting 

 over the supraanal plate, the tooth sometimes shorter than, usually as 

 long as, the basal swelling, in southern examples half as long again as 

 it (the length slightly exaggerated in fig. 6); cerci simple, feebly fal- 

 ciform blades about twice as long as their basal breadth, at the 

 rounded apex about half as broad as at base, usually slightly incurved, 

 and generally exteriorly sulcate on the apical half, sometimes to a 

 considerable degree; subgenital plate small, conical, the upper margin 

 acutangulate as seen from above, in one plane, entire. 



Length of body, male, 17 mm., female, 22 mm.; antennae, male and 

 female, 8 mm.; tegmina, male, 5 mm., female, 5.25 mm.; hind femora, 

 male, 10 mm., female, 12.75 mm. 



Seventy-three males, 95 females. Brunswick, Maine, Packard (Mu- 

 seum Comparative Zoology); Springfield, Hampden County, Massa- 

 chusetts, Allen (same); Deep Eiver, Middlesex County, Connecticut, 

 August 24 (A. P. Morse); New Haven, Connecticut, S. I. Smith, A. P. 

 Morse (S. H. Scudder; Museum Comparative Zoology); North Haven, 

 New Haven County, Connecticut, August 23 (A. P. Morse) ; South Kent, 

 Litchfield County, Connecticut, August 19-20 (A. P. Morse) ; Staten 

 Island, New York, September 18, W.T.Davis; Maryland, September 

 15, 19, October 18, 25, P. E. Uhler; Middle States, E. Osten Sacken; 

 Washington, D. C. (L. Bruuer, U.S.N.M.); Virginia ^(U.S.N.M. Eiley 

 collection); Sheuandoah Valley, Virginia, October, Packard (Museum 

 Comparative Zoology); Vigo County, Indiana, W. S. Blatchley (S. H. 

 Scudder; A.P.Morse); Bloomiugton, Monroe County, Indiana, Bollman 

 (U.S.N.M.); Lexington, Fay ette County, Kentucky, August 29, Septem- 

 ber 3, H. Garman; near Mammoth Cave, Kentucky, October, Putnam 

 (Museum Comparative Zoology); Illinois, Uhler (S. H. Scudder; L. 

 Bruner); Northern Illinois, Keunicott; Ogle County, Illinois, J. A. 

 Allen; Chicago, Cook County, Illinois, September (U.S.N.M. Itiley 

 collection); Bock Island, Illinois, Walsh; Moline, Eock Island County, 

 Illinois, McNeill; Southern Illinois, November 1 (U.S.N.M. Eiley col- 

 lection); Saint Clair County, Illinois, October 29 (same); Jackson 

 County, Illinois (same); Dallas County, Iowa, August 8-10, September 

 1-3, J. A. Allen; Jefferson, Greene County, Iowa, July 20-24, Allen; 

 Crawford County, Iowa, July 13-24, Allen; West Point, Cuming County, 

 Nebraska, L. Bruner; Missouri. September 24-25 (U.S.N.M. Riley col- 

 lection); Savannah, Andrew County, Missouri, October 30 (same); Cen- 

 tral Missouri (same) ; Booue County, Missouri, November 1 (same) ; Saint 



