DIPTERA. 29 



L. ultima Osten Sacken. 



Me. — Easton, Aug. 26 (Alexander). N. H. — Franconia (Mrs. 



Slosson) . 

 Mass. — Amherst, May 7, 1924 (Alexander). 



Subgenus Ephelia Schiner. 



L. aprilina Osten Sacken. 



N. H. — Franconia. Vt. — Brattleboro, July 15; Dummerston, 



July 14. 

 Mass. — North Adams, June 20; Whately Glen and Mt. Toby, 



May 23, July 10 (Alexander). R. I. — Buttonwoods, June 25, 



1912. 



L. johnsoni Alexander, 14-591. 



N. R.—Bretton Woods, June 23, 1913. 



Subgenus Dicranophragma Osten Sacken. 



L. fuscovaria Osten Sacken. 



Me.— 4, 6, 7, 8, 9. N. H.— 11, 14, 15. Vt.— 16, 17, 18, 21. 



June 6- July 29. 



Mass.— 24, 27. R. I.— 33. Conn.— 35. May 29-Aug. 9. 



Subgenus Prionolabis Osten Sacken. 



L. munda Osten Sacken. 



Me. — Mt. Desert, July 12. N. H. — Franconia (Mrs. Slosson); 

 Mt. Washington, 2000-4000 ft., July 6; Bretton Woods, June 



28. 



L. rufibasis Osten Sacken. 



Me.— 4, 6, 7, 8. N. H.— 11, 14. Vt.— 16, 21. June 4-July 16. 

 Mass.— 23, 24, 26, 27. R. I.— 33. Conn.— 35. Apr. 6-June 

 15. 



L. poetica Osten Sacken. 



Mass.— Milton, May 18; Brookline, May 23; Beverly, May 23 



(Burgess) . 



L. unica Osten Sacken. 



Me. — Waterville, June 20; Orono, larva. May 4 (Alexander). 



N. H.— White Mts. 

 Mass. — Conway, May 27 (Alexander-). 



L. novaeangliae Alexander, 14-594. 



Me. — Ellsworth, July 9- Aug. 10 (Stanwood). 



L. osborni Alexander, 14-596. 



Me. — Phair, Aug. 26; Bangor Bog, near Orono, Aug. 30. 



L. montana Osten Sacken. 



Me.— 7, 8. N. H.— 11, 14. Vt.— 17. June 12-July 15. 



Mass.— 24, 27, 28. Conn.— 35. May 3-29. 



L. consimilis Dietz, 21-255. 



Conn. — East River, June, 1911 (Ely). 



