No. 64] DiPTERA OF conxecticct: taxonomy 349 



inal tergites brown, sternites yellow: terminal segments dark brown. 

 Male hypopygium (Fig. 41. B) having unusually long setae on basi- 

 style. S. L. 13.5-16 mm.: w. 13.5-15 mm. 9.' L. 20 nun.: w. 9.5 

 mm. 



(Late July-Oct.) Ont., Que., N. B., Me., N. H., Vt., Mass., N. Y. and Pa., westw. 

 to Mich.. Wise, and Hudson's Bay. 



P. (Trlci/phona) calcar (O.S.) (Figs. 40, D; 41, C). 

 1859. Anmlopis calcar Osten Sacken; Proc. Acad. Xat. Sci. Philadel- 

 phia, 1859:247. 



Figs. — Osten Sacken, Mon. Dipt. N. .A.mer., 4, pi. 2, fig. 14 (wing") ; 1869. 

 Needham, 23rd Kept. N. Y. St. Ent. for 1907, pi. 25, fig. 2 (ven. ) ; 1908. Williston, 

 Man. N. Amer. Dipt., Ed. 3, : 84, fig. 25, sub 4 (ven.); 1908. Alexander, Proc. 

 Acad. xVat. Sci. Philadelphia, 1916, pi. 28, fig. 48 (wing) ; 1916. Alexander, Cfls. N. 

 Y., 1, pi. 42, fig. 178 (wing) ; 1919. Dickinson, Cfls. Wise, p. 208, fig. 107 (wing) : 

 1932. 



General coloration of thorax pale yellow, the praescutum with 

 four slightly more reddish stripes, the interspaces weakly pruinose. 

 Antennae chiefly pale yellow, outer segments brown. Head gray. 

 Wings (Fig. 40, D) tinged with yellow; cell R^ short-petiolate. Ab- 

 domen brown above, tergites laterally and the sternites yellow; sub- 

 terminal segments dark brown. Male hypopygium (Fig. 41, C). $. 

 L. 10-13 mm. ; w. 11-14 mm. ? . L. 15-18 mm. ; w. 13.5-15 mm. 



(May, June) Ont.. Que.. Me., N. H., Vt., Mass., N. Y., westw. to Wise, southw. 

 to N. C. 



Connecticut.— Cornwall Bridge, May 30, 1931 (C. P.A.), June 12-13. 1931 (C. P. A.) : 

 Hartland, June 9. 1929 (C. P. A.); Norfolk, June 9, 1929 (C. P. A.); Riverton, 

 May 30, 1931 (CP. A.); Storrs, May 1931 (C. S. C.) ; Tyler Lake, May 30. 1931 

 (C.P.A.). 



P. {Tricy phona) mconsi2iY\^ {O.S.) (Figs. 40, C; 41, E). 

 1859. Amalopis Inconstans Osten Sacken; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1859:247. 



Figs.— Osten Sacken, Mon. Dipt. N. Amer., 4, pi. 4, fig. 30 {i hyp.): 18o9. 

 Needham, 23rd Rept. N. Y. St. Ent. for 1907, pi. 25, fig. 1 (ven.) ; 1908. Alexander, 

 Proc, Acad. Nat. Sci. Philadelphia, 1916, pi. 28, fig. 47 (wing) : 1916. Alexander. 

 Cfls. N. Y., 1, pi. 42. fig. 177 (wing) ; 1919. Dickinson. Cfls. Wise, p. 209, fig. lOb 

 (wing) ; 1932. 



General coloration of notuni yellow to yellowish orange, pronotum 

 darkened medially. Antennae yellow, basal segments darker. Head 

 brownish gray. Halteres and legs yellow. Wings (Fig. 40, C) sub- 

 hyaline, costal border broadly and conspicuously inf uscated ; restricted 

 brown dots at origin Rs and on anterior cord. Abdomnial tergites 

 brown, basal sternileb paW. Male hypopygium (Fig. 41, E). $. L. 

 11-14 mm. ; w. 10-12 mm. ? . T^. 13-16 mm. ; w. 11-14 mm 



(May-Sept.) Ont., Que., Nfd., N. B., N. S., Me.. N. H Vt. Mass., R. I.. N. Y., 

 N. J.', Pa., westw. to Wise, Minn, and Mo., southw. to S. L. and Ua. 

 Connecticut.-Danbury, June 15. 1909 (C.W.J.): East R^^er Mv 6 1911 (Ely): 

 Hamden, June 2, 1928 ( R. B. F.) : Kent Falls, Sept. 11 929 A. L\ . . Mamt.c 

 Lake, Tune 8-9, 1929 (C. P. A.); Natchaug State Forest, June 14, 1933 (L.P. A.y, 



