MONTANA KXI'HHl.MKNT STATION. 131 



the season and to keep him there until the close of the season, we 

 did not have an opportunity to determine the number of broods of 

 the beetle nor the stage in which most of the insects pass the win- 

 ter. Mr. Jones made the observations on the effects of spraying 

 with, and dippini^- in, arsenate of lead, and very carefidly studied the 

 !iabits of the insects during the three and a half months of his stay 

 at Missoula. 



GEOGRAPHICAL DISTRIBUTION. 



The strawberry crown girdler is an introduced species, having 

 come to this continent in all probability from Europe. It is known 

 to occur in Europe and Siberia. In the United States it has been 

 found from the Atlantic coast west to the state of Washington. 

 The most southerly points at which it has been recorded are Alle- 

 ghany, Pa., and Santa Fe, New Mexico. Both of these points are 

 just within the southern boundary of the transitional life-zone and 

 it is probable that this beetle finds its southern limit at about the 

 line between the transitional and upper austral life-zones. 



From the list of places given below, where the beetle has been 

 recorded, it will be seen that though of foreign origin, this insect has 

 become widely and generally distributed. Being entirely without 

 wings it is dependent upon outside agencies for transportation ex- 

 cept over such short distances as it can cover by walking. More 

 will be said about the means of distribution in a later i)aragraph. 



The following is a list of the records of the distribution of the 

 strawberry crown-girdler. 



Massachusetts, 1852, Henshaw. Cambridge, Mass., 1865, Hen- 

 shaw. Cambridge, ]Mass., 1874, Henshaw. Wyoming, ^lass., 1874, 

 Henshaw. Alleghany, Pa., 1875, ^^'ickham. Detroit, INIich., 1878, 

 Wickham. Hanover, N. H., 1880, Henshaw. Buffalo, N. Y. 1882 (?) 

 Wickham. New York, 1884, Lintncr. "Southern Michigan," ai)OUt 

 1882 or 1883, Weed. Ottawa, Canada, 1884, Harrington. Iowa City, 

 Iowa, "not later than 1886," Wickham. Nova Scotia, 1880. Chica- 

 go, 111., i889Wayne Co., Ohio, 1892. Quebec, Canada, 1892. Indiana, 

 1892. New Jersey. Laramie, Wyoming, 1893, \\'ickham. Santa 

 Fe, New Mexico, 1894, Wickham. Minnesota, 1895, Lug2:er. Mis- 

 soula, 1897, Wilcox. Bozeman, Montana, 1899, Cooley. Helena, 

 jNIontana, 1904, Cooley. Lake Washington, Wash., 1904, Melander 

 (in Lit.) 



