Xo. 64] DIPTERA OF CONXECTICUT : TAXONOMY 409 



Unta^ much resembles a species of Pilarm or Lvninophila {Phijlidorea) 

 but is equally out of place in either <rroup. The antennae have ver- 

 ticils of normal size and number. The chief tendencies of venation 

 are in the short i?.s, with So endin<>: shortly before its fork; position 

 of R-:. near the fork of the long straight 7?2+3+4 wliich is in direct 

 alignment with Rs\ cell M^ lacking (Fig. 44, F). The adult flies oc- 

 cur on vegetation in open shaded situations, usually near Avater. The 

 early stages are unknown. 



Shannonomyia lenta (O. S.) (Fig. 44, F). 



1859. Limnopli'ila lenta Osten Sacken; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1859 : 241. 



Figs. — Alexander, Psvche, 18, pi. 16, fig-. 1 (vcn.) ; 1911. .Alexander, Cfls. 

 N. Y., 1, pi. 40, fig. 152 (ven.) ; 1919. 



General coloration of thorax pale brownish yellow to ochreous, 

 without markings; pleura with a vague pruino.sity. Antennae {$) 

 relatively long, if bent backward extending about to root of halteres; 

 basal segments yellowish, the flagellum chiefly brown. Head gray, 

 more silver}^ in front. Halteres and legs yellow. Wings (Fig. 44, F) 

 with a grayish yellow tinge, the base and costal region clearer yel- 

 low : stigma and vague clouds along cord and outer end of cell 1st Mo 

 pale brown; veins pale. Abdomen obscure yellow, with a narrow 

 darkened subterminal ring. $. L. 5-5.5 mm.; w. 5.5-6.5 mm. 9. 

 L. 7-8 mm. ; w. 7-7.5 mm. 



(May-Sept.) Out., Que., N. B., Me., N. H., Vt., Mass., N. Y., Pa., wcstw. to Mich, 

 and 111., southw. to Ga. and Tenn. 



Connecticut.— East River, July 6, 1910 (Ely); Granby, June 8, 1929 (C. P. A.); 

 Hamden. July 13, 1932 (P.G.): Kent Falls, June 12-13. 1931, Aug. 19, 1931 (C. P. 

 A.); Norfolk. Sept. 6, 1928 (G. C. C.) ; Riverton. Julv 23, 1931 (C. P. A.): Sap- 

 tree Run State Park, June 14, 1933 (C. P. A.); Sharon, Sept. 5, 1928 (G. C. C.) ; 

 Tunxis State Park, July 23, 1931 (C. P. A.) : Twin Lakes, Sept. 12, 1928 (C. P. A.) ; 

 Tyler Lake, Tune 13, 1931 (C. P. A.); Westford, June 14. 1933 (C P. A.) ; W. 

 Granby, Sept. 11. 1928 (CP. A.). 



A second form of the species is described herewith. 

 Shannonomyia lenta gaspeana subsp. nov. 



General coloration of body darker brown, more or less pruinose; 

 median region of praescutum "with a darker brown stripe. Antennal 

 flagellum dark broAvn. Knobs of halteres infuscated. Tips of tibiae 

 narrowlv darkened. Wings with the veins darker: veins /?» and Ri 

 more divergent, cell R^ wide at margin. Abdomen, including hy- 

 popvgium, dark brown. 



'HoJotype, $, Ruisseau Castor, N. Gaspe, Que., June 2(, 1931 

 {C. P. Alexander) : in author's collection. 



It is probable that additional material will show that this fly de- 

 serves full specific rank. 



The status of .S'. congenita (Dtz.) (Trans. Amer. hnt hoc, 4< : 

 257; 1921) is still uncertain but seems to represent a dark lorm o± 

 l&nta. The antennae are described as being darker brown than in the 

 typical form and the median region of the ninth tergite ol the male 



