406 CONNECTICUT GEOL. AND NAT, HIST. SURVEY [BllU. 



6 with a narrow black subterminal ring; hypopygium yellow. Male 

 hypopygiiun (Fig. 45, O) with the outer dististyle bifid at apex, bear- 

 ing an acute lateral spur on outer margin at about three-fourths the 

 length; inner dististyle short and broad, its apex nearly truncate, 

 blackened; outer gonapophyses bearing a dense brush of long yellow 

 setae on disk; inner gonapophyses slender, microscopically toothed 

 before apex. $. L. 4.5-5 nnn. ; w. 5.5-5.8 mm. 9. L. 6.5-7 mm.: w. 

 5.8-6 mm. 



(July) \'t., Mass., N. Y., N. J., southw. to S. C. 



L. {Lhnnophila) hrexif urea O.S. (Fig. 44, D). 

 1,S59. Linmophila hrevijurca Osten Sacken; Proc. Acad. Nat. Sci. 

 Philadelphia, 1859 : 237. 



Figs.— Xeedliam. 23rd Rept. N. Y. St. Ent. for 1907, pi. 14, fig. 6 (ven.) : 1908. 

 Alexander, Cfls. N. Y., 1, pi. 38, fig. 125 (ven.) ; 1919. 



General coloration of mesonotum brownish gray, the praescutal 

 stripes ill-defined : pseudosutural f oveae and tuberculate pits black. 

 Antennae short in both sexes. Legs brownish yellow, the tips of fem- 

 ora and tibiae darkened. Wings with a faint brownish tinge, the 

 stigma a trifle darkened (Fig. 44, D); Rs long; i?2-|-3+4 short, less 

 than m-cu\ R-, about one-third to two-fifths /^i + o- In certain speci- 

 mens cell Ml may be lost in one or even in both wings. Abdomen pale 

 brown, darker laterally, with a dark subterminal ring; hypopygium 

 yellow. Male hypopygium with the basistyles long and slender ; outer 

 dististyle slender, bifid at apex ; interbases terminating in oval heads. 

 c^ . L. 5-6 mm. ; w. 5.5-6.5 mm. 9 . L. about 6-6.5 nnn. ; w. 6.5-7 mm. 



(May, June; rarely in Autumn) Que., N. B., Me., N. H., Vt., Mass., westw. to 

 Mich., southw. to S. C. 



Connecticut.— Hartland. June 9, 1929 (C. P. A.) ; Norfolk, May 21, 1910 (W. L. M.) ; 

 May 16, 1931, Mav 31, 1931, June 9, 1929, June 12, 1931 (C. P. A.) : Kent Falls, Mav 

 31, 1931 (C. P. A.): N. Branford, Mav 12, 1933 (M.P. Z.); Riverton, May 17, 1931. 

 May 30-31, 1931, June 8, 1929 (C. P. A.): W. Granbv, June 8, 1929 (C. P. A.): 

 Winsted, May 16, 1931 (C. P. A.). 



L. {Limnophila) irrorata Johns. (Fig. 45, P). 



1909. Lhnnophila irrorata Johnson; Proc. Boston Soc. Nat. Hist., 



34:127-128. 

 1916. L. Irrorata Alexander: Proc, Acad. Nat. Sci. Philadelphia, 



1916:531-532. 



Figs.— Tohnson, Ibid.. 34. pi. 16, fig. 17 (wing) ; 1909. Alexander, Cfls. N. Y., 

 1, pi. 39, fig. 133 (wing) ; 1919. 



General coloration of mesonotum dark brown, with a sparse yel- 

 low pollen, leaving vague darker streaks. Antennae short in both 

 sexes, black throughout. Halteres brownish yellow, the knobs dark 

 brown. Legs conspicuously hairy: outer tarsal segments blackened. 

 Wings with larger dark areas at origin of Rs^ along cord and at ends 

 of veins i?i + 2 find Ri\ R^ + ^+i short to very short, in most cases about 

 one-half 7n-cu\ Ri + o and Rj subequal; cell 31 1 about equal to its 

 petiole: m.-cu beyond midlength of cell 1st M.>. Abdominal tergites 



