310 COXNECTICUT GEOL. AND NAT. HIST. SUR\T:T [BulL 



Figs. — Osten Sacken, Ibid., 4, pi. 1, fig. 4 (wing). Needham, 23rd Rept. N. Y, 

 St. Ent. for 1907, pi. 28. fig. 1 (ven.) ; 1908. Alexander, Cfls. N. Y.. 1, pi. 32. fig. 

 41 (wing) ; 1919. Dickinson, Cfls. Wise, p. 187, fig. 65 (wing) ; 1932. 



General coloration jjolished 3'ellow or greenish yellow, the prae- 

 scutum with three more or less distinct brown stripes. Antennae 

 black, the apical pedicels of the segments a little paler. Femora with a 

 subterminal black ring, apex clear yellow. Ground-color of wings 

 pale yellow, the pattern pale brown. Male hypopygium (P'ig. 37, A). 

 3. L. 7.5-8.5 mm.; w. 8-10 nmi. 9. L. 8-9 mm.; av. 9-11 mm. 



(June-Sept.) Ont., Que., N. B., N. S., Me., N. H., Vt., Mass., R. I., N. Y., s. 

 to Va. and Tenn., westw. and northwestw. to Neb., Alta. and B. C. (Northern 

 Europe; eastern Asia, s. in mts. to Mindanao and Borneo). 



Connecticut.— E. Hartland, Sept. 11, 1928 (C. P. A.); East River, Aug. 29, Sept. 

 1910 (Ely); Salisbury, Sept. 12, 1928 (C. P. A.); Tunxis State Park. July 23-24. 

 1931 (C P. A.); Twin Lakes. Sept. 12, 1928 (C. P. A.); W. Granby, Sept. 11. 1928 

 (C.P.A.). 



L. {Discohola) nigroclavata sp. nov. 



(jrenerally similar to annulata Linn., in the general coloration; 

 snbapically banded femora and ocellate wings, differing especially in 

 the more abundant tlotted wings and blackish knobs of halteres. 

 Mesonotal praesctitum witli the three usual brown stripes; lateral 

 margins of praescutmn behind the pseudosutural foveae similarly in- 

 fuscated ; scutellum chiefly black, the base medially obscure yellow ; 

 mediotergite chiefly darker, with a yellow spot on either side at base. 

 Pleura pale, conspicuously striped longitudinallj' with brown. Hal- 

 teres with base of apex of stem pale, the central half of stem and the 

 knobs dark brown. Wings with the ocellate brown pattern paler and 

 more delicate than in annulata^ with additional small brown spots in 

 cells M and in outer radial field. Abdominal tergites brown, the cau- 

 dal margins of the segments somewhat darker; basal sternites pale. 

 9 . L. 7-8 mm. ; "w. 7.5-9 mm. 



Holotype. 5, Tuxedo, N. Y., Aug. 1928 (F. W. Edwards) ; type 

 in British Museum. Paratypes^ a broken 9 , Holliston, Mass., Sept. 

 16, 1929 (B. Gerry), Alexander Collection, i . Mount Desert Island. 

 Me., Station F218, September 4, 1936 (Wm. Procter). 



The discovery of a second species of Discohola in northeastern 

 North America was primarily due to Dr. Edwards' intensive collecting 

 while visiting America in 1928. I express my deep thanks to him for 

 the privilege of describing this fly, as well as for innumerable kindly 

 favors in the past. 



Subgenus Dicranomyia Steph. 

 1829. Dicranomyia Stephens; Cat. Brit. Ins., 2:243. 



Key to Species 



1. Wings unusually narrow, approximately five or more times as long as wide 2 

 Wings of normal width, about four times, or a trifle more, as long as wide 4 



2. Wings with cell 1st Mo open; thoracic pleura with a narrow brown longi- 



tudinal stripe; male hypopygium with tergite having a A -shaped median 

 sclerotized rod; dorsal dististyle present (Fig. 36, B) longipennis 



