DIPTERA. 13 



is in the U. S. National Museum, Mr. A. P. Morse has collected 

 at Salem, Danvers, Haggett's Pond, Plum Island and other 

 places. Mr. F. H. Walker has collected at Salem and Marble- 

 head. Mr. A. B. Fuller has collected at Essex and Mr. W. S. 

 Brooks at Beverly Farms. The writer has collected on the 

 Ipswich River above and below North Reading, June 10; at 

 Rockport, July 15, 1904, and August 28, 1913; East Gloucester 

 and Briar Neck (labeled Gloucester), August 30, 1912, August 

 28, 1913, May 22, 1915, July 5 to 8, 1918, and May 30, 1919. 

 A small collection was also made at Coffin's Beach, May 30, 1916. 

 Miss Cora H. Clarke has collected many species of gall insects 

 at Magnolia. 



27. The Boston area. — This comprises Suffolk, the southern 

 portion of Middlesex and the greater part of Norfolk Counties, 

 covering largely the valleys of the Charles and Neponset 

 Rivers. It might be bounded by a line drawn from Stoneham 

 to Concord and from there south to Framingham, through Hol- 

 liston and Sharon to the Plymouth County line. The places 

 where collecting has been done are so numerous that only the 

 more important ones can be mentioned, except in the case of 

 rare species, then the exact locality will be given under the species. 

 Although this has been a collecting ground for entomologists 

 since the days of Harris, no one has really specialized on the 

 Diptera, hence older records are comparatively meager. Boston 

 includes all of Suffolk County; Roxbury, Dorchester, Jamaica 

 Plain and Forest Hills are all within the County. The label, 

 "Brookline," includes also the Chestnut Hill section around 

 Hammond's Pond; Auburndale includes the western part of 

 Newton. A label, "Riverside," was first used for the portion 

 adjacent to the Charles River, but was later discarded because 

 there were found to be three other Riversides in the State. Both 

 Brookline and Auburndale have been favorite collecting grounds 

 for the writer, especially during the years 1903 to 1911. Welles- 

 ley is the home of Mr. A. P. Morse, who has collected there and 

 in the immediate vicinity. At Sherborn, Mr. E. J. Smith has 

 taken a number of species. Framingham is the home of Mr. 

 C. A. Frost. He has collected a number of new and interesting 

 species during the past twenty years. Holliston, where Mr. 

 Nathan Banks has recently moved, is yielding many desirable 

 species. The writer has collected at Dedham, September 4, 

 1908, June 3, 1909, and May 20, 1912; at Purgatory Swamp, 

 near Ellis, May 24, 1912, April 21, 1913, May 11, 1914, and May 

 3, 1918; also at Walpole, May 26, 1908. Sharon has been a 

 favorite collecting ground, and with Dr. Cushman I have spent 

 a number of days there and obtained many new and interesting 

 species. Another place frequently visited by the writer and 

 others is the Blue Hill in Milton. It was at Milton that Harris 

 lived before going to Cambridge and most of the local species in 



