No. 64] DIPTERA OF COXNECTICUT : TAXONOMY 315 



pygium with basistyle black, contrasting with the pale tergite and ven- 

 tral dististyle; rostral prolongation very small, with two long straight 

 spines. S. L. about 5-5.5 mm.; w. T.5-7.6 mm. 9. L. about 7-7.5 

 mm. ; w. 7.5-7.7 mm. 



(Aug.) Nfld., westw. and northw. to Alta. and Can. Arctic. (Hudsonian). (N. 

 Eurasia). 



L. {Dicranomyia) distans (O. S.) (Fig. 35, C). 

 1859. Dicranomyia distans Osten Sacken; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1859 : 211. 



Fig.— Alexander, Cfls. Puerto Rico, pi. 44, fig. 7 (hyp.) ; 1932. 



General coloration dark brown; pleura somewhat paler. Knobs 

 of halteres weakly darkened. Wings with a strong brown tinge. 

 Male hypopygium (Fig. 35, C). $. L. 4.5-5 mm.; w. 5.5-6 nnn. 9. 

 L. 5.5-6 mm. ; w. 5.5-6 mm. 



(Nov.-Feb.) Md., Va., S. C, Ala. and Fla., southw. into Tropical America. Re- 

 ported from Pa. by Dietz, presumably in error. 



L. [Dicranomyia) di visa Alex. (Fig. 35, D). 



1859. Dicranomyia diversa Osten Sacken; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1859:212 (preoccupied). 



1929. Limonia {Dicranomyia) divisa Alexander; Philippine Journ. 

 Sci. 40 : 247. 



Fig.— Alexander, Cfls. Puerto Rico, pi. 44, fig. 8 (hyp.) ; 1932. 



Pale ochreous or brownish yellow; mesonotum unmarked. Ros- 

 trum yellow. Antennae with scape and pedicel pale; flagellum dark 

 l)rown or brownish black. Wings with Sci long. Male hypopygium 

 (Fig. 35, D). 5. L. 4-4.5 mm.; w. 4.5-5 mm. ?. L. 5.5-6 mm.; 

 w. 5.5-6 mm. 



(May-June; Oct.) Mass., N. Y., Pa., westw. to Mich., 111., la., and Mo.; southw. 

 to Ga. and Fla.; (also in higher mts. of Greater Antilles). 



L. {Dicranomyi<i) f loridana (O. S.) 



1869. Dicmnomyia floridana, Osten Sacken; Mon. Dipt. N. Amer., 

 4:67. 



Closely allied to hrevivena, differing especially in the brown ros- 

 trum and long vein /Sci ; cell 1st M. open or closed. Male hypopygium 

 almost as in hreviveTia. 

 Md., Va., S. C, Fla. (coastal) ; having a marine larva. 



L. {Dicmnomyia) gibsoni (Alex.) (Fig. 35, E). ^ 



1929. Dicranomyia gibsoni Alexander; Can. P^nt., 61: 17-18. 



Allied and generally similar to haeretica. General coloration dark 

 brown, thorax with a sparse golden-yellow pollen. Male hypopygium 

 (Fig. 35, E) : both this species and haeretica have a small s^tiferous 

 lobule on cephalic mesal angle of ventral dististyle. $ . L. 7-9 mm. : 

 w. 7-8 mm. ? . L. about 7 mm. ; w. about 8 mm. 



