352 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bllll. 



N. Branford. July 4, 1924 (R. B. F.) ; Norfolk, June 9. 1929 (C. P. A.): Pulnam, 

 June 15. 1933 (C. P. A.); Riverton, May 30, June 12, 1931 (C. P.A.); Salisburv. 

 Sept. 5, 1928 (G. C C.) ; Sept. 12, 1928 (C. P. A.) ; Stafford Springs, June 14. 1933 

 (C. P. A); Tunxis State Park, June 12-13, Julv 22>, 1931 (C. P. A.): Tyler Lake, 

 May 30. 1931 (C. P. A.); Union, Aug. 17. 1928 (C. S. C.) ; Westbrook, June 5, 

 1929 (R. B. F.) ; W. Granby, Sept. 11, 1928 (G. C. C), June 8, 1929 (C. P. A.). 



P. (7'W(?y/>Ac»^«) johnsoni Alex. (Fig. 41, D). 



1930. Tricyphona johnsoni Alexander; Occas. Pap. Boston Soc, Nat. 

 Hist., 5 : 277. 



Figs. — Osten Sacken. Mon. Dipt. N. Amer., 4, pi. 2, fig. 15 (wing) ; 1869. (as 

 inconstans). Johnson. Psyche, 34:217, figs. 1-4 (wings); 1927, (as inconstans). 



Generally similar to inco^isfans. Jittering as follows: wings nar- 

 rower, the coloration darker, including the somewhat broader costal 

 border; cell B4 with from one to seven supernumerary crossveins. 

 Male hypopygium with the tergite (Fig. 41, D). 



(June) Mass. (Nantucket Is.), soutiiw. to flatwoods areas of S. C, Ga. and Fla. 

 (coastal). 



P. {Trlcyphona) katahdin Alex. 



1914. Tricyphonu katahdin Alexander; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1914: 598-599. 



Figs. — Alexander, Ibid.. 1914, pi. 25, fig. 7 (wing). Alexander, Ibid., 1916. pi. 

 28, fig. 51 (wing) ; 1916. Alexander, Cfls. N. Y., 1, pi. 42, fig. 183 (wing) ; 1919. 



Mesonotum light fawn-brown, praescutal stripes very ill-defined, 

 the pleura light yellow. Antennae with basal segment yellow, re- 

 mainder dark brown. Knobs of halteres weakly darkened. Femora 

 yellow basally, passing into brown. Wings light yellow, with a few 

 small brown spots, chiefly along anterior half ; venation variable, m.-ca 

 at or before fork of J/, cell Mz subsessile to long-petiolate. Abdominal 

 tergites weakly bicolorous, brown, the apices broadly pale; sternites 

 brow^nish yellow; margined laterally with brown. jVIale hypopygium 

 almost as in paludicola. $ . L. 6-7.5 mm.; w. 6-7 nmi. 9. L. 8.8-9.5 

 mm. ; w. 7.5-9 mm. 



(Aug.) Me., Vt., westw. to Mich. 



P. {Trlcyphona) macateei Alex. 



1919. Tricyphona macateei Alexander; Can. Ent., 51: 166. 



Mesonotum yellowish gray, the praescutum with four brown 

 stripes, intermediate pair only narrowly separated. Antennae brown- 

 ish black throughout. Head dark gray. Femora brownish yellow, 

 tips broadl}^ dark brown. Wings nearly hyaline, with a heavy dark 

 brown pattern. Cell M^ sessile; m-cv. at or before fork of M. Ab- 

 dominal tergites brownish gray, the caudal margins more yellowish 

 gray. Male hypopygium almost as in ^aZ^/<;?^co?«. $. L. 8-8.5 mm.; 

 w. 8-9 mm. 9. L." 9-10 mm.; w. 10-11 mm. 



(Early May; Sept., Oct.) Mass., N. Y., southw. to Md. and N. C. 

 Connecticut.— -W. Granby, Sept. 11, 1928 (G. C.C.). 



