10 N. H. AGE. EXPERIMENT STATION. [Bulletin 171 



In 1872 Riley (52) identified an infestation called to his at- 

 tention from Keene, N. H., with the observation, however, that 

 the species existed in the east and west, feeding on wild haws, 

 and was but now turning its attention to the cultivated fruit. 

 Maine was added to the printed list in 1876 by Riley (53), who 

 again identified an infestation complained of by a fruit-grower. 



Thus in the first ten years of published accounts the species 

 was of record in seven states, including Maine, New Hampshire, 

 Vermont, Massachusetts, Connecticut, New York and Illinois. 



In 1881 Professor Comstock (8) reared the adults from haws 

 collected in Washington, D. C. The states of Michigan and 

 Wisconsin were added in 1884 by Professor Cook (9), who wrote 

 that the maggot had been known to infest thorn apples in Mich- 

 igan, Wisconsin and Illinois for years, but had not been observed 

 attacking the cultivated apple in Michigan before that year. 

 New Jersey was added in 1889 by E. WilHams (65). In 1891 

 Professor Osborn (43) recorded injury in Iowa and Professor 

 Weed (62) in Ohio. The species was noted from North Carolina 

 in 1894 by Dr. Howard (33). Observations on its work in Rhode 

 Island were printed in 1896 by L. F. Kinney (38). 



In 1896 the maggot was recorded in Ontario by Dr. Fletcher 

 (16). This should not be quoted, however, as the first finding 

 of the species in Canada, but as the first observation of it in 

 cultivated fruit. Dr. Fletcher stated that the maggot occurred 

 abundantly in haws in many localities, and that he had himself 

 bred the fly in 1887, ten years before, from haws collected at 

 London, Hamilton, Toronto, Montreal and Ottawa. In 1904 

 Dr. Fletcher (19) recorded infestation of cultivated fruit in 

 Quebec, and in 1906 (21) in New Brunswick. 



Beginning in 1882 an increasing number of articles concerning 

 the species appeared in print, aside from the records noted above. 

 For the most part these described notable damage wrought, or 

 other similar matters. 



INVESTIGATIONS ELSEWHERE. 



The first serious investigation of the species was conducted 

 in 1888 and 1889 by Professor Harvey (25), then entomologist 

 of the Maine Station. The work of Professor Harvey was that 

 of a pioneer, and many valuable facts were determined. The 



