^O. 64J DIPTERA OF CONXECTICUT : TAXOXOMY 48:^ 



Wings yellowisli gray, the axillary region more infunied: vein 2m1 A 

 ending some distance before m-cu. Male hypopygium (Fig. .jo. K). 

 (5. L. about 3.8 mm.; w. 3.5 nun.: antenna, about 1.8 mm. 

 (June) Que., N. B. 



M. pubipennis (U.S.) (Fig. 55, L). 



1859. Erioptera puhipennis Osten vSacken ; Proc. Acad. Nat. Sci. 

 Philadelphia, 1859 : 228. 



Figs.— Alexander, Cfls. N. Y., 1, pi. 34. fig. 66 (ven.) ; 1919. Cramiitun. In^ce. 

 Inscit. Menst., 13, pi. 2, fig. 4; pi. 3, fig. 17 (thorax) ; 1925. 



Belongs to the gracilis group, (ieneral coloration pale reddish 

 yellow. Head yellow. Knobs of halteres weakly dark«'ned (6) or 

 clear yellow (9). In female, costal border of wing.s (h'nsdy clothed 

 with golden-yellow trichia ; in male, these trichia more lirownisli y<'l- 

 low to pale brown. Male hypopygium (Fig. 55. L) with the outei- 

 dististyle almost glabrous. 



The female is well-distinguished b\' the golden-yellow costal 

 trichia but the males have not yet been satisfactorily separated. In 

 what appears to represent a single species, a rather remarkable range 

 in the amount and coarseness of the setae of the outer dististyle is 

 found. $. L. about 3.5-4 mm.; w. 4-4.5 mm.; antennae, about 2.25 

 mm. ?. L. 3.5-4 nun.; w. 4-4.5 nun. 



It is doubtful that the male associated with this species belongs 

 here. See note under M. hirtipennis. 



(June-Aug.) Ont., Que., Me., N. H., Vt., Mass., N. Y., westw. to ind. and Mich., 

 southw. to S. C, Ga., Tenn. and Fla. 



Connecticut— Bloomfield, Aug. 6, 1929 (C. P. A.); Cornwall Bridge. June 12-13, 1931 

 (C. P. A.) ; Kent Falls, June 12-13, 1931, July 23-24, 1931, Aug. 19, 1931 (C. P. A.) ; 

 Norfolk, May 31, 1931, June 12, 1931. July 24, 1931 (C. P.A.); Riverton, June 8, 

 1929 (C. P. A.); Saptree Run State Park, Tune 14, 1933 (C. P. A.): Twni Lakes, 

 Sept. 12. 1928 (C. P.A.): Tyler Lake, June 13. 1931, July 23, 1931 (C. P. A.): W . 

 Granby. June 8, 1929 (C. P. A.). 



M. quadrispinosus Alex. (Fig. 55, M). 



1924. Molopliihis quad)'/ spinos lis Alexander: liull. Ui-ooklyn Ent. 

 Soc, 19 : 02. 



Belongs to the plagiatns group. General coloration (huk grayish 

 brown, the humeral region of praescutum more brownish yellow. Hal- 

 teres light yellow. Male hypopygium (Fig. 55. :M). 6. L. iiboiit 

 3,5-4 mm. ; w\ 4.5-5 mm. 



(Late May, June) Que., N. B., \t., Mass., Ct., X. Y., westw. t.. Mich. 

 Connecticut.-Kent Falls, May 30-31, 1931 (C.P.A.); Riverto.i, May 30. 1931 

 (C. P. A.) : W. Granby, June 8, 1929 (C. P. A.). 



M. soror Alex. 



1927. Molophihis soror Alexander: Occas. Pap. Boston >oc. >at. 



Hist., 5 : 230-231. 



Fig.-Alexander, Cfls. N. Y., 1, pi. 34, fig. 69 (ven.) ; 1919 (as comatus Doane). 



Belongs to the gracilis group. General coloration brownish gray. 



Antennae short, brownish black. Halteres pale. Wmgs whitish, the 



