WESTERN LIMIT OF OCCURRENCE. 
23 
of the curculio was not much in evidence, although both wild and 
cultivated plums showed some injury. Fourteen beetles were reared 
from fruit from Pierre. At Aberdeen, S. Dak., practically all fruit 
had been destroyed and no observations on the curculio could be 
made. 
Conditions were very similar at James town, N. Dak., the point 
next visited. Xo fruit whatever was in evidence and no observa- 
tions were possible. Also at Bismarck, N. Dak., the fruit had been 
completely destroyed. At Fargo, N. Dak, and Moorehead, Minn., 
an adjacent town, there was but little in the way of fruit, although 
wild plum trees were in abundance in the Red River Valley. Four 
curculios, however, were reared from plums sent in. 
In this connection should be mentioned the record of the curculio 
at Aweme, Manitoba, collected by Mr. N. diddle, and published in 
the Annual Report of the Entomological Society of Ontario for 1904, 
page 76. 
While the observations made during 1910 by Mr. Gill are far from 
as complete as desirable, yet it appears clear that the insect has not 
established itself to any extent west of about the one hundredth 
meridian. Sterling, Colo, (longitude 103°), is the most western point 
from which the species has been recorded. Observations are most 
complete for Texas, and according to the data at hand the insect is 
present as far west as Victoria on the south and Wichita Falls on 
the north. Although fruit was present at Quanah, Canadian, and 
Amarillo, Tex., no beetles could be found. The general conclusion 
would appear warranted that the insect is not able to extend its 
range much out of the humid area as defined in Merriam's Life-Zone 
Map. 
In Table I the localities above mentioned, with a few additional 
ones, are shown, with approximate longitude and with indications 
of the source of the record. 
Table I. — Western distribution of the plum curculio. 
Localities. 
TEXAS. 
Victoria 
Garrison 
Morrill 
Arlington 
Sherman 
Denison 
Wichita Falls 
Quanah 
Canadian 
Amarillo 
OKLAHOMA 
El Reno 
Alva 
Longitude 
(approxi- Occurrence. 
mate). 
97 00 
Present. . . 
94 30 
do 
95 30 
do 
97 00 
do 
96 35 
do 
96 30 
do 
'.is 25 
do 
Absent 
KH) 20 
...do 
101 45 
...do 
98 Oil 
Presenl . . . 
99 30 
...do 
Remarks. 
Reared from fruit in 1905. 
Do. 
Specimens received from correspondent 
Reared from fruit in 1910. 
Do. 
Do. 
Do. 
Specimens received from correspondent 
