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Article III. — On the Parasites of the Lesser Apple Leaf- 

 Boiler^ Teras minuta (Robs.). By Clarence M. Weed. 



In a paper to be published in the Report of the State Ento- 

 mologist of Illinois for 1886, I have discussed at length the 

 literature and life-history of the Lesser Apple Leaf-Roller, 

 originally described by Robinson as Tortrix minuta^ and since 

 re-described by Le Baron, Riley, Packard, and Zeller under the 

 specific names of malivorajia, Cinderella, vacciniivorana and 

 variolana. I have there shown that the life-history of the 

 species when feeding upon apple is the same as when feeding 

 upon cranberry, Dr. Riley having proved that in the latter 

 case the species is dimorphic, — there being a yellow summer 

 form and a gray winter form. The parasites described below 

 were mostly bred at the Laboratory during 1886, though a few 

 had been obtained during previous seasons. It is a little re- 

 markable that although this leaf-roller has been so often in- 

 jurious both upon apple and cranberry, and has frequently been 

 treated of in entomological literature, there has heretofore been 

 recorded but one species of parasite bred from it, (obtained 

 from cranberry-feeding larvae). Yet from the frequently re- 

 corded fluctuations in the numbers of the larvae upon apple, 

 it seems probable that they have been subject to parasitic 

 attack for many years. 



I desire to acknowledge my great obligations to Professor 

 S. A. Ferbes, to whose liberal-minded policy of allowing his 

 assistants personal credit for much of the work done by them, 

 I am indebted for the opportunity of publishing the present 

 paper; and to Dr. C. V. Riley, who has kindly determined the 

 generic position of the species of Limneria, Cremastics, and 

 Pimpla described below. 



