No. 64] ' DIPTERA or CONNECTICUT : TAXONOMY 277 



6. Cells C and Sc strongly infumed, approximately as dark as the stigma ; an- 



tennal flagellum weakly bicolored morrisoni 



Cells C and Sc pale yellow, much lighter than the stigma ; antennal flagellum 

 uniformly dark brown Johnsoniana 



{Supplementary Key : Males) 



1. Hypopygium (Fig. 31, E) with 9th tergite not or scarcely tumid, the slender 



horns directed caudad; 8th sternite long, sheathing the 9th sternite, at apex 



with two horny points on either side parshleyi 



Hypopygium with 9th tergite tumid, with or without horns ; 8th sternite 

 shorter, not sheathing the 9th sternite, unarmed at apex 2 



2. Ninth tergite with four lobes or horns (Fig. 31, C) megaura 



Ninth tergite with two horns or else without horns 3 



3. Tergite of hypopygium without horns (Fig. 12, B) johnsoniana 



Tergite with horns 4 



4. Horns of tergite slender, directed dorsad and caudad (Fig. 31, A) bicorni-s 



Horns of tergite stout, directed caudad and very slightly ventrad (Fig. 31, D) 



morrisoni 



Tipula {Lunatipula) bicornis Forbes. (Figs. 24, H; 31, A). 



1891. Tipula 'bicornis Forbes; State Ent. Illinois, Kept. 16:78. 



Figs. — Snodgrass, Journ. N. Y. Ent. Soc, 11, pi. 10, fig. 1, pi. 11, fig. 16 (ovi- 

 pos.); 1903; Trans. Amer. Ent. Soc, 30, pi. 14, figs. 94-101 (hyp.); 1904. Alex- 

 ander, Cfls. N. Y., 1, pi. 46, fig. 230 (wing), pi. 52, fig. 319, pi. 55, fig. 350 (hyp.) ; 

 1919. Cole, Proc. California Acad. Sci. (4) 16:459, fig. 8 (hyp.) ; 1927. Dickinson, 

 Cfls. Wise, p. 250, fig. 196 (hyp.) ; 1932. 



Ground color of thorax lio:ht gray, praesciitum with four more 

 brownish stripes. Male hypopygium (Fig. 31, A) with dorsal angle 

 of basistyle produced into a spine. S. L, 12-13 mm,; w. 14-15 mm. 



(May-early July) Out., Que., N. B., Me., N. H., Vt., Mass., N. Y., Pa., westw. to 

 Wise, Kan. and Mo., southw. to Va. and Tenn. (Transition). 



Connecticut.— Kent Falls, June 12-13, 1931 (C. P. A.) ; Storrs, 1929. 



T. {Lunatipula) johnsoniana Alex. (Fig. 31, B). 

 1915. Tipula johnsoniana Alexander; Proc, Acad. Nat. Sci. Phila- 

 delphia, 1915 : 505-506. 

 1915. T, ^lylnnemana Alexander: Insec. Inscit. Menst., 3: 136-137. 



Figs.— Alexander, Proc. Acad. Nat. Sci. Philadelphia, 1915, pi. 17, fig. 20 (wing), 

 pi. 18, fig. 40, pi. 19, fig. 58 (hyp.) ; 1915. Alexander, Cfls. N. Y., 1, pi. 52, fig. 318, 

 ' pi. 55, fig. 351 (hyp.) ; 1919. 



Praescutal stripes grayish brown, the median one entire. Male 

 hypopygium (Fig. 31, B), ^ i. L. 17.5-19.5 mm.; w, 19-22.8 mm. 



(June, July) Vt., Mass., southw. to Md. (Transition). 



T. {Lunatipula) megaura Doane. (Fig. 31, C). 



1901. Tipula megaura Doane ; Journ. N. Y. Ent. Soc, 9 : 112-113, 



Figs.— Alexander, Proc. Acad. Nat. Sci. Philadelphia, 1915, pi. 17, fig. 22 (wing), 

 pi. 18, fig. 42, pi. 19, fig. 59 (hvp.) ; 1915. Alexander, Cfls. N. Y., 1, pi. 46, fig. 231 

 (wing), pi. 52, fig. 320, pi. 55, fig. 353 (hyp.) ; 1919. Dickinson, Cfls. Wise, p. 238, 

 fig. 158 (wing), p. 250, fig. 195 (hyp.) ; 1932. 



Antennae relatively short; flagellum very weakly bicolorous. 



