No. 64] DIPTERA OF CONNECTICUT : TAXONOMY 239 



T. {Tr'/chotijnila) unifasciata (Lw.) 



1863. Pachyrrhhia unifasciata Loew; Berlin. Ent. Zeitschr., 7:294. 

 lOlU. Tijnila unifmciata Alexander; Cornell Univ. A^'. Expt. Sta. 



Mem. 25 : 939. 943. 



Figs.— Alexander, Ihid.. p. 862 (ven.), pi. 44, fisi. 206 (wing), pi. 49, fig. 262 

 (hyp.); 1919. 



Antennal fiasfellum uniformly darkened. Wing-s with a band at 

 cord, tog:ether with outer radial cells, darkened ; basal section of M^ 

 erect. Abdomen yellow, the segments banded with black. Male 

 hypopygium with dorsal portion of sternite produced caudad into a 

 conspicuous yellow lobe. Ovipositor Avith elongate valves. c5 . L. 

 11-12 mm.; w. 10.5-11.5 mm. 9. L. 15-17 mm.: av. 11.5-13 mm. 



(Aug.-Oct.) Ont., Mass., N. Y., N. J., Pa., westw. to Ind., 111., Mich., la. and 

 Kan., southw. to S. C, Ga. and n. Fla. 



T. {Triehotipula) unimaculata (Lw.) 



1864. Pachyrrhhia unimaculata Loew; Berlin. Ent. Zeitschr., 8:64. 

 1919. Tipula unimaculata Alexander; Cornell Univ. Agr. Expt. Sta. 



Mem. 25 : 939. 943. 



Figs.— Alexander, Ibid., pi. 43, fig. 196 (wing), pi. 49, fig. 259 (hyp.) ; 1919. 



Characters much as in algonciuin. Wings yellowish ; stigma dark 

 brown, conspicuous. Abdominal segments not conspicuously ringed 

 with dark brown. (^ . L. 9 - 9 . 5 mm. ; w. 9 . 5 - 11 mm. ; antenna, 6-6.5 

 mm. 9. L. 12-13 mm.; w. 8.5-10.5 mm. 



(Aug.-Oct.) Ont., Que., Me.. Vt., Mass., N. Y., Pa., westw. to Mich, and 111., 



southw. to Md. and N. C. 



Connecticut.— Kent Falls, Aug. 19, 1931 (C. P. A.): Norfolk, Sept. 5-6, 1928 

 (G. C. C), Sept. 12, 1928 (C.P. A.); Twin Lakes, Sept. 12, 1928 (C. P. A.). 



Subgenus Nobilotipula subgen.n. 

 (type nohilis IjW.) 



General coloration polished yellow and black, almost as in Ncph- 

 rotoma^ the praescutal stripes and pleura slightly more i)ruinose in 

 collaris. Macrotrichia of veins very sparse, quite lacking on M and 

 its branches. Squama and sternopleurite naked. Tibial spur formida 

 1-1-2. Ovipositor with very short fleshy valves. 



Key to Sf'ccics 



1. Praescutal stripes opaque, dull black or grayish black: pleura pruinose with 

 gray, especially on ventral anepisternum and sternopleurite ; basal abdominal 



tergite gray pruinose collaris 



Praescutal stripes polished black; pleura light yellow, not or scarcely prui- 

 nose ; basal abdominal tergite not pruinose nobilis 



Tipula {NohilotipuJa) collaris Say 



1823. Tiqmla collaris Say; Journ. Acad. Xat. Sci. Philadelphia, 3:25. 



Fig.— Alexander, Cfls. X. Y.. 1, pi. 44, fig. 207 (wing) ; 1919. 



