228 CONNECTICUT GEOL, AND NAT. HIST. SURVEY [Bull. 



(May, June; Aug., Sept.) Generally distributed in eastern North America, westw. 

 to Alta., Colo, and N. M., southw. to Ga., La. and Tex. 



Connecticut. — Compo Beach, Mav 23, 1916 (I. N.G.); Cromwell, Willow Isl., Aug. 

 9 1924 (Unger) ; East River, Sept. 10 (Elv) ; Granby, May 21, 1917 (M. P. Z.); 

 Hamden, May 24, 1926 (J.L.R.), Aug. 31, 1932 (N.T.); Hartland. June 9, 1929 

 (C. P.A.); Kent Falls, June 12-13, 1931 (C. P.A.); Mansfield, June 25, 1920 

 (J. A. M.) ; Milford, June 12, 1917- (M. P. Z.) ; New Haven, Mav 26, 1910 (A. B. C), 

 June 6, 1916 (B. H.W.), June 23, 1923 (W. E. B.); Prospect, Aug. 15, 1906 

 (W. E. B.) ; Salisburv, Aug. 5, 1928 (G. C. C.) ; Storrs, June 25-28. 1920 (J. A. M.) ; 

 Wallingford, June 17, 1913 (Q. S. L.). 



N. festina (Dtz.) 



1918. Pachyrhina festina Dietz; Trans. Amer. Ent. Soc, 44:120-127 

 (as lapsus, perfida., 1. c, p. 128). 



Fig. — Dietz, Ibid., pi. 5, fig. 12 (wing). 



Close to sodalis. Coloration pale yellow, the praescutal stripes 

 chestnut brown to reddish brown. Antennae very slender; outer 

 flagellar segments uniformly brownish yellow, not excised. Abdomen 

 yellow, tergites with ill-defined pale brown median stripe and lateral 

 series of black dashes. $. L. 12.5 mm.: w. 12.5 mm. 



(July. Aug.) Ont., westw. to Ind., Mich, and Man., southw. to Pa., Md. and N. C. 



Prof. Eogers states that this proves to be a straight synonym of 



gracUicorrds. 



N. gracilicornis (Lw.) 



1864. PaeJujrrh'ma gracUicornis Loew; Berlin. Ent. Zeitschr., 8:66. 



Close to sodalis. Occiput subopaque, immaculate. Antennae 

 slender, of moderate length; flagellar segments beyond first dark 

 brown. PraescutaL stripes brownish ochreous. Stigma brown. Ab- 

 dominal tergites Avith a median brown stripe and lateral black dashes. 

 $ . L. 11-12 mm. ; w. 13 - 14 mm. 9 . L. 15 - 16 mm. ; w. 13 - 14 mm. 



(July, Aug.) N. Y., Md., westw. to Mich. 



N. hirsutula (Dtz.) 



1918. Fgchyrhina hirsutula Dietz; Trans. Amer. Ent. Soc. 44:118- 

 119 (as lapsus, pilosida, 1. c, p. 110). 



Fig. — Dietz, Ibid., pi. 4, fig. 4 (wing). 



Close to macrocera. Cells of wing with sparse macrotrichia. 

 $ . L. 11.5 mm.; w. 12.5 mm. 



(May) Pa. 



This and other species of the genus defined by Dietz as having 

 macrotrichia scattered over the wing-surface may' be based on arti- 

 facts, such as setae broken from the veins and "^merely Iving loose 

 on the wing-surface. Prof, Rogers has confirmed the above obser- 

 vation and found that this name is based on macrocera with detached 

 macrotrichia of the veins lying caught among the microtrichia. 



