196 
IOWA ACADEMY OP SCIENCES. 
Dr. LeBaron (2d Kept. 111. Insects p. 130) writes as follows: 
“In the Prairie Parmer for July 29th, a brief outline of the 
locust range was published by Mr. Suel Foster, of Muscatine, 
Iowa, but in this outline, as Mr. Poster himself stated, many 
gaps were left undetermined. I have found Mr. Poster’s out- 
line to be, in the main, correct, and have filled, as far as pos- 
sible, the gaps which he left. I will take the same starting 
point with Mr. Poster, namely, the junction of the Iowa River 
with the Mississippi in Louisa county, Iowa. Thence, in a 
northwesterly direction, following the eastern branch known 
as the Cedar River as far north as about opposite the mouth of 
the Wisconsin river. Thence east in about the same line of 
latitude to Lake Michigan, following the Wisconsin river so far 
as it lies in this line, thus leaving out the northernmost counties 
of Iowa and the two lower tiers of counties of Wisconsin.” 
The rest of the description refers only to territory outside of 
Iowa. 
In 1878 at the time of the occurrence of Brood XIII in south- 
ern Iowa, Prof. C. E. Bessey, then of the Iowa Agricultural 
College, collected data for the determination of the boundaries 
of that brood and incidentally collected considerable informa- 
tion concerning the distribution of Brood V in the eastern part 
of the state. 
His report upon this investigation appeared in the American 
Entomologist, Vol. I. N. S., p. 27, As there given the area 
included is considerably greater than that outlined by Dr. 
LeBaron. He does not seem to have noticed the record of 
LeBaron given above. His outline is as follows: 
Starting at nearly the same point in Wapello, Louisa county, 
the line he draws extends more to the westward, including the 
western or low^a branch of the Iowa river as far west as into 
Tama county, and considerable territory to the southward, 
including all of Johnson, more than half of Iowa and a portion 
of Poweshiek counties. Prom Tama county northeastward to 
the extreme northeast corner of the state includiug nearly all of 
Black Hawk, Payette and Allamakee counties, and part of 
Bremer, Chickasaw and Winneshiek, with a possible extension 
westward so as to include all the counties to the north and east 
of Tama, though reference to his notes indicates some of the 
counties included, as Allamakee, Winneshiek, Black Hawk, 
Payette and Bremer to be doubtful. 
