No. 64] DIPTERA OF CONNECTICUT : TAXONOMY 205 



(July) N. Y. Still known from the unique type. 



T. ( Oreomi/za) borealis Wk. (Fig. 29, F ) . 



1848. Tipnla horealis Walker; List Dipt. Brit. Mus., 1 : 66. 



1863. T. hehes Loew ; Berlin. Ent. Zeitschr., 7 : 285. 



Figs. — Dietz, Trans. Amer. Ent. Soc, 40, pi. 13, fig. 1 (hyp.) ; 1914. Alexander, 

 Cfls. N. Y., 1, pi. 48, fig. 249 (wing) ; 1919. Dickinson, Cfls. Wise, p. 233, fig. 142 

 (wing), p. 249, fig. 177 (hyp.) ; 1932. 



Antennae ( $ ) elongate, if bent backward extending to beyond 

 base of abdomen. Male hypopygimn with apex of tergite truncate, 

 with four blackened clecurved points, the lateral pair shorter (Fig. 

 29, F). $. L. 13-15 mm.; w. 14-16 mm.; antenna, 6-6.5 mm. ?. L. 

 16-17 mm. ; w. 15-16 mm. 



(June-Sept.) Ont, Que., N. B., N. S., Me., N. H., Vt., Mass., N. Y., N. J., Pa., 

 westw. to Wise, and Kan., southw. to S. C. and Tenn. 



Connecticut— Bloomfield. Aug. 6. 1929 (C. P. A.) ; Branford, Aug. 1905 (H.W.W.) ; 

 E. Haddam, Aug. 25, 1929 (R. B. F.); East River, Aug. 15, 1911 (Ely); Hamdcn, 

 July 31, 1928 (R.B.F.); Middlebury, Aug. 10, 1928 (R. B. F.) ; Stony Creek, Aug. 

 12, 1904 (P. L. B.); Storrs ; Tyler Lake, July 23, 1931 (C. P. A.) ; Connecticut, 

 without more accurate data, Norton, Loevv's type of hebes. 



T. {Oreomyza) gaspensis Alex. 



1929. Tipida gaspensis Alexander; Can. Ent., 61 : 233-234. 



Ventral sternopleurite darkened. Male hypopygium with caudal 

 margin of sternite not conspicuouslj^ emarginate. Abdomen with a 

 conspicuous median brown stripe on both tergites and sternites. 

 $. L. 9-10 mm.; w. 10.5-11.5 mm.; antenna, 4-4.5 mm. 2. L. 13- 

 13.5 mm.; w. 11.5 mm. 



(June-July) Que. 



T. {Oreomyza) gY2ii2i 1jV< . (Fig. 29, G). 



1863. Tipula grata Loew; Berlin. Ent. Zeitschr., 7:281. 



Fig.— Alexander, Cfls. N. Y., 1, pi. 51, fig. 292 (hyp.) ; 1919. 



Two or three dusky areas on dorsal thoracic pleura. Male hy- 

 popygium with eighth sternite conspicuously trilobed, the setae short 

 but dense. Ninth tergite with apex (Fig. 29, G) a flattened plate, the 

 outer lateral angles appearing as curved acute horns. $ . L. 12 mm.; 

 w. 13.5-14 mm. ; antenna, about 4 mm. 5 . L. 14-15 mm. ; w. 14 mm. 



(June- Aug.) Ont., Que., N. B., Me., N. H., Vt., Mass., N. Y., westw. to Ind., 

 Mich., Minn, and Alta. 



Connecticut— Kent Falls, June 12-13, 1931 (M. M.A.). 



T. (6>rec»??iys«) helderbergensis Alex. (Fig. 29, H). 



1918. Tipula helderbergensis Alexander; Can. Ent., 50:64-65. 



Mesonotal praescutum with an elongate dark triangle at cephalic 

 portion of each intermediate stripe. Abdomen chiefly dark brown. 

 Male hypopygium with caudal border of tergite blackened, extended 



