-230- 
WHEAT MIDGE ( Contarinia tritici Kby.) 
Ohio. T. H. Parks (August 1): We have received a sample of wheat from Fairfield 
County with so many of these larvae in it that the owner feared to store the 
grain. From the numbers of the larvae present the insects must have damaged 
the milky kernels and reduced the yield. No general outbreak of the wheat 
midge occurred in Ohio. 
BLACK GRAIN STEM SATO.Y ( Trachelus tabidus Fab.) 
Virginia. J. S. Pinckney (June): Slight infestations of this sawfly were found 
in the Counties of Louisa (2 per cent), Spotsylvania (1 per cent), Essex (1 
per cent), King George (1 per cent), Richmond (1 per cent), Westmoreland (1 
per cent), and Fairfax (l per cent). Other counties in the principal wheat- 
growing areas showed no infestation. Injury to v/heat from this source was 
obviously negligible. The survey was based on the examination of 5 widely 
distributed samples of wheat stems from each County. 
Maryland. J. S. Pinckney and E. J. Udine (July): Infestations of the black grain- 
stem sawfly were found in the Counties of Ealtimore (11 per cent), Carroll (4 
per cent), Frederick (5 per cent), Earford (2 per cent), Howard (2 per cent), 
Montgomery (6 per cent), and Washington (2 per cent). Injury to the wheat 
crop from this source was negligible. Five widely distributed samples of 50 
wheat stems each from each county formed the basis of this survey. This is 
a noticeable increase in infestation over last year, when no sawflies were 
found in the course of a similar survey. 
Pennsylvania. C. C. Hill, J. S. Pinckney, and E. J. Udine (June - July): Infes- 
tations in wheat were found in all sections of the State surveyed for this 
pest. In many fields the grain was conspicuously knocked over from this 
cause, with the accompanying loss of wheat usually experienced "by lodging. 
Each sample examined consisted of 50 stems. The infestations by counties 
are as follows: 
County 
Number of 
&arap-l»e6 
examined 
5 • v?QS 
(per c 
of 
tr.tior. 
ent) 
Number of 
samples 
County examined 
Rate of 
Safe station 
(uer cent) 
Adams 5 
Cumberland 7 
Dauphin 5 
Franklin 5 
Fulton 5 
3 
14 
1 
7 
8 
Juniata 5 
Lebanon 5 
Perry 5 
Westmoreland 5 
York 5 
2 
1 
5 
2 
3 
Average 5 per cent 
WHEAT STEM SAWFLY (Cephus cinctus Nort.) 
North Dakota. J. A. Munro (August 21): The wheat stem sawfly is reported as 
prevalent in the eastern part of Oliver County. 
SAY'S STINK BUG ( Chlorochroa sayi Stal) 
Montana. A. L. Strand (August 19): The ^rain bug or Say's plant bug has been 
exceptionally abundant in grain fields of north-central Montana. This is 
believed to be the first important outbreak of this insect in the State. 
