192 MAINE STATE COLLEGE 



in wild haws, (thorn apples or thorn plums, as they are variously 

 called,) five or six years before his description appeared. The 

 flies and maggots were known in the Eastern States several years 

 before 1867, and at that date their ravages upon cultivated apples 

 claimed serious attention in New York, Massachusetts, Connecti- 

 cut and Vermont. To Walsh belongs the credit of showing, that 

 the maggots affecting cultivated apples were the same as 

 those he found in haws ; and that the beautiful fly known in the 

 cabinets of Eastern Entomologists, was an undescribed American 

 species of Trypeta and the perfect form of the Apple Maggot. 



Prof. Cook records its occurence in wild haws in Michigan, 

 Illinois and Wisconsin. Prof. Comstock bred it from a species of 

 haw (Craicegus) growing upon the agricultural grounds at Wash- 

 ington. We find no reference to its having been found elsewhere 

 in haws. We have not found it in haws in Maine. The published 

 statements regarding its universal distribution in haws are not 

 based on observation. There are no positive observations of its 

 feeding upon wild crab apples, (Pyrus). Walsh says it feeds 

 ^'■probably upon our native crabs." Comstock and Lintner write 

 me they did not record its occurrence in crab apples from personal 

 observations. The wild crab apples are hard during the time 

 the flies are on the wing and would not appear to us to be a proper 

 nidus for the maggot. The writer lived twenty years in the 

 Mississippi valley where crab apples are common and did not see 

 Trypeta. Prof. Cook has not found it in crab apples but writes 

 us that Trypeta has been found the past season (1889) in 

 Michigan infesting plums and late cherries. In considering the 

 history and distribution of this insect out^ide of Maine, we can do 

 no better than take extracts from Walsh, Comstock, Lintner and 

 Cook. 



In 1866 Walsh had knowledge of its occurrence in Massachu- 

 setts, Connecticut, New York and probably Veimont. 



In New York it was prevalent at the Oneida community; 

 North Hempstead, L. I. and occurcd generally through the 

 Hudson river country. In Massachusetts at East Falmouth. 

 Its occurrence in Vermont in 1867 is unceitain. In July 1867 

 Walsh bred the files from maggots received from Connecticut, 

 Massachusetts and New York. 



Comstock in 1881 records its occurrence in New Hampshire, 

 where, according to Mr. N. W, Hardy, it had infested the early 

 yarieties in the towns of Hancock and Dublin for the last six 



