234 MAINE STATE COLLEGE 



and the novel view that thej^ are placed "near the calyx end, where 

 the fruit may have been already burrowed by the apple worm." 

 It is not certain fiom this statenaent what method of entrance into 

 the fruit by the larvse is advocated, but it may be implied that 

 those from eggs laid in apple worm holes enter that way, and the 

 others when hatched crawl to apple worm holes or bore directly 

 through the peel where they are located. It makes but little dif- 

 ference now, as both are known to be wrong. Prof. Lint- 

 ner evidently did not observe a fly with the ovipositor 

 extended, or he would not have rejected Walsh's statement, and 

 said the "blunt ovipositor could not pierce the peel" of the 

 apple. He corrects the error that Trj^peta is confined to early 

 fruits, and recognizes its wider sphere of action. Prof. Lintner, 

 under the head of "Desiderata in the Life History of Trypeta," 

 mentions several points which need to be determined. The ques- 

 tions asked by him are all considered in this Report. 



The statement made by Walsh, Comstock and Perkins, that 

 Trypeta has not been found in cultivated apples in Illinois needs 

 correction. In Orchard and Garden (October 1889, page 192) 

 Mr. A. B. Cordley records its occurence in Illinois. 



The following statements made by Prof-: Perkins have not 

 been confirmed: "The eggs must be deposited upon the apple. 

 The ovipositor is too soft and blunt to pierce the skin of the 

 apple. The maggots do not eat the apples until well advanced 

 toward maturity. The eggs are not deposited on the fruit 

 until the end of autumn." 



Prof. Perkins expresses doubt about the eggs being locally 

 j)laced on the apple, and implies that the larvie guaw through the 

 skin when hatched, or sometimes enter codling moth holes. He 

 also gives facts disproving Comstock's position that Trypeta is 

 chiefly found in early apple.s. He also adds Vermont localities to 

 our knowledge of its distribution and suggests several important 

 lines of research, which were undertaken by the writer and are 

 considered in this Report. 



Mr. A. B. Cordley, in the article referred to above, records the 

 occurrence of Trypeta in plums and cherries in Northern Michi- 

 gan, and also speaks of Tr^^peta having been found in Illinois. 

 The article seems to have been written to report the above facts, 

 as nothing else is new, and many of the errors of previous 

 writers are reiterated. 



Mr. G. C. Davis in The Ohio Farmer, November 9th, 1889, 



