No. 64] DIPTERA OF COXXECTICUT : TAXONOMY 393 



(jeneral coloration Ulack, dusted with f^ray. Praescutum yellow- 

 ish ^ray. with scarcely indicated more shiny strii)es. Leo;s obscure 

 yelloAv, the femoral tips broadly brownish black, most extensive on the 

 fore letjs; tibiae narrowly tipped with black. Wino:s yellowish ^rray, 

 more yellow basally; stijrma dark brown; cord, outer end of cell 1st 

 3/2 and vein Cui seamed with pale brown. Male hypojiy^ium (Fig. 

 45. L) with the pectinations of the outer dististyle vai-ial)io in number 

 and degfree. S. L. 8.5-11 mm.; w. d-VI nun. 9. L. 11-14 mm.: w. 

 11.5-13.5 mm. 



(May, June) Out., Que., NfcL, N. B., Me., N. H., Vt., Mass.. R. I., N. Y.. N. J., 

 Pa., westw. to Wise, southw. to N. C. and S. C. 



One of the largest and most common members of the genus in tlic local fauna. 



Connecticut.— Canaan, June 10. 1928 (R. B.F.); Cornwall Bridge, May 30, 1931 

 (C. P. A.); Danburv, June 15, 1909 (C. W. J.); Eastford, June 12, 1919 (W. E. B.): 

 Hamden, June 21, 1928 (R.B.F.); Kent Falls. May 31. 1931 (C. P. A.); Aleriden. 

 May 2S, 1930 (R.B. P.); Middlebury, Tune 2. 1919 (W.E. B.): Montville. June 12. 

 1929 (R. B. F.) : New Haven, May 31, 1929 (R. B. F.) ; Norfolk, May 31, 1931, June 

 9, 1929. June 12, 1931 (C. P. A.); Riverton, May 30-31. 1931 (C. P. A.): Rowayton. 

 June 16, 1909 (C. W.J.): Salisbury, June 10, 1928 (R. B. F.) ; Storrs, May 14, 1928, 

 June 1. 1933. June 2. 1927 (J. A.M.) ; Tunxis State Park. June 12. 1931 (C. P. A.) : 

 Tyler Lake. May 30. 1931. June 13. 1931 (C.P.A.) ; Westbrook, June 5. 1929 (B. H. 

 W.): W. Granby. June 8. 1929 (C. P. A.); W. Hartford. June 10, 1929 (R. B. F.). 



L. (Pnonolahis) simplex Alex. (Fig. 45, M). 



1911. Llmnophila {Prhnolabis) simplex Alexander: Psvche. IS: 

 198-199. 



Figs.— Alexander. Ibid., pi. 16. fig. 10 (hyp.); 1911. Alexander, Cfls. N. Y., 1. 

 pi. 40, fig. 143 (wing) ; 1919. 



Generally similar to rufihasis, differing especially in the structure 

 of the male hypopygium (Fig. 45, M). Outer dististyle more irregu- 

 larly pectinate, with one outstanding denticle at near midlength. 

 Wing-base not so conspicuously brightened as in ruf /basis. 6 . L. 10- 

 11 mm.; w, 9.5-11.5 mm. 



(May, June) N. H., N. Y., southw. to N. C, Ga. and Fla. 



L. (Prionolahls) terebrans Alex. 



1916. Llmnophila terehmns Alexander; Journ. X. Y. V.ui. Soc, 24: 

 121-122. 



Figs.— Alexander, Ibid., pi. 8, fig. 5 (wing). Alexander, Cfls. N. Y.. 1. pi. 40. 

 fig. 146 (wing) : 1919. 



Black, the thorax covered with a yellowish gray jjollen. Legs 

 conspicuously hairy, especially in the female where they are notably 

 shorter than*^in male; femora' yellow, tipped with brown, most exten- 

 sive on the fore legs Avhere tlie outer half is included, narrowest on 

 the posterior legs where only the tips are darkened. Male hypop3^g- 

 ium with the outer dististyle lacking the coml)-like (U'uticles of 

 rM./75fw/5 and allies. $. L. about 7.5 mm.; w. 7.7 unn. 9. L. about 

 8 unn. ; w. 8-8.3 mm. 

 (Late Apr., May) N. J., to vicinity of D. C. 



