Xo. 64] DIPTERA OF CONXECTICl T: TA.\(.N(..M V 459 



Subgenus Hoplolabis O. S. 



ls6i». Ei'ioptera {HopJolahi^i) Osteii Sacken : ^Moii. Dipt N" Amer 

 4:160. ■' 



The subgenus finds its near alh^ in Ilisi-a. A single local species, 

 with a few others in western North' America and in Japan. 



Erioptera {Hoplolahis) armata U.S. (Figs. 50, G; 52, K). 

 1859. Erioptera armata Osten Sacken; Proc. Acad. Nat. Sci. Phil- 

 adelphia, 1859 : 227. 



Figs.— Osten Sacken, Mon. Dipt. N. Amer., 4, pi. 1, fig. 18 (wing), pi. 4, fig. 

 14 (hyp.) : 1869. Needham, 23rd Rept. N. Y. St. Ent. for 1907, pi. 23. figs. 5, 6 

 (ven.) ; 1908. Alexander, Cfls. N. Y., 1, pi. 35, fig. 83 (wing) ; 1919. Crampton. 

 Insec. Inscit. Menst., 13. pi. 2, fig. 5 (thorax) ; 1925. Dickinson, Cfls. Wise, p. 

 193. fig. 76 (wing) ; 1932. 



General coloration gray, the praescutum with black setigerous 

 punctures on the interspaces. Knobs of halteres darkened. Legs ob- 

 scure yellow. Wings with a heav,v dark brown pattern, arranged 

 chiefly as four or five major costal areas, with smaller spots at ends 

 of other longitudinal veins and on crossveins and deflections: basal sec- 

 tion of vein iI/3 angulated and spurred, the spur extending l)a.'^ad into 

 cell 1st 3/0, .sometimes complete (Fig. 50. G). Abdomen dark brown, 

 the segments ringed caudally with pale. Male hypopygium (Fig. 

 52, K). <J. L. 4.5-5.5 mm.; w. 5-6 mm. $. L. 5-6 mm.: w. 5.5-6.5 

 mm. 



(May-Sept.) Ont., Que.. N. B., N. S., Ale., N. H., Yt., Mass., N. Y., westw. to 

 la., Okla. and Colo., southw. to S. C, Ga. and Tenn. 



Connecticut.— Hamden, Sept. 5, 1932 (N.T.); Hartland, June 9, 1929 (C. P.A.); 

 Kent Falls, Sept. 11, 1929 (A.J.W.); Norfolk, May 31, 1931, June 9, 1929 (C. P. 

 A.); Riverton. June 8, 1929 (C. P.A.): Twin Lakes, Sept. 12, 1928 (G. C. C.) : 

 Tyler Lake, May 30, 1931 (C. P.A.); W. Granby, June 8. 1929 (C. P.A.); W. 

 Hartford, Aug. 29, 1904 (H. L.V.). 



Subgenus Ilisia Rond. 



1856. llkia Eondani ; Prodr. Dipterol. Italicae, 1 : 182. 

 1869. Erioptera {Acyphona) Osten Sacken: Mon. Dipt. ^. Amer., 

 4:151-152. 



The various species have cell 1st M-j unusually long, with the basal 

 section of J/3 nearly straight, not angulated and spurred as m Hoplo- 

 lahis. 



Key to Species 



1. \Yinffs with two broad brown crossbands, the first not attaining the costal 



border, the larger second band at the cord, these bands wider than the 



hourglass-shaped interspace J "," V ^®"" 



Wings with the dark pattern broken into small spots or narrow broken bands ^ 

 that are narrower than the interspace ■ .•••••.■ ;„' Ji,«l„ei= 



2. All femora with a single narrow, dark brown, subtermmal rmg maianensis 



\t least the fore femora with two broader rings •,•■,■■■; ,' ' 



3 Femora with the dark rings nearly black, so broad as to mclude almost the 



entire segment, the usual ground-color reduced to a narrow pale ^"""'^'^^ V j^.^ 

 base of tibia narrowly blackened 3'* ^ 



