INSECTS MISTAKEN FOR CHINCH BUGS. ol 
Forbes and the writer, the species will attack timothy only in cases 
where it is compelled to do so by reason of a lack of other food. In 
addition to the preceding, Doctor Howard gives broom corn, sorghum, 
chicken corn, Bermuda grass (Capriola dactylon), bluegrass (Poa 
pratensis), crab grass (Syntherisma sanguinalis), and bottle grass 
(Ivophorus viridis), and also states that in the rice fields near 
Savannah, Ga., in August, 1881, he observed the winged adults upon 
the heads. Prof. H. A. Morgan wrote that in 1897 it had become.a 
serious enemy to “ Providence ” rice in Louisiana, where for two years 
it had seriously injured corn, and the writer was informed through 
other sources that 1t proved injurious to corn again in 1898. Adults 
have often been found collected in the silk of belated ears of corn in the 
fields in September, when all other parts of the plant had either become 
too old and tough to afford nourishment or else had been killed by the 
frosts of autumn. Prof. Lawrence Bruner has recorded the insect as 
feeding upon so-called wild buckwheat (Polygonum dumetorum or P. 
convolvulus).© The writer has never seen 
chinch bugs attack bluegrass (Poa pra- 
tensis), and has seldom witnessed them in- 
juring oats, but on September 27, 1904, he 
observed larvee, pupx, and adults, the last 
all fully winged, attacking Arrhenatherum 
(oat grass) on the experiment farm of the 
University of Tennessee, at Knoxville. 
Over the western country the major por- F%9- &—Nysius angustatus: b, pupa; 
: s M ¢c, mature bug. (From Riley.) 
tion of the damage done is to fields of 
wheat, barley, rye, and corn, the outbreak generally originating in 
wheat or barley fields and the bugs migrating at harvest to the corn- 
fields. (See fig. 5.) In the eastern part of the country, where the 
timothy meadows are the most seriously infested, this is not the case, 
and here the migrations are as likely to be to the timothy meadows as 
to the fields of corn, where both are equally within reach. Besides, 
everything indicates that a very large proportion of the adults may 
hibernate in these meadows, even making their,way thereto in the 
autumn. 
INSECTS THAT ARE MISTAKEN FOR CHINCH BUGS. 
Messrs. Osborn and Mally” have given a list of twelve species of 
Hemiptera which have been mistaken with more or less frequency for 
the chinch bug, the list being as follows: ; 
Nysius angustatus Uhl., the false chinch bug (fig. 6), is probably 
the most frequently mistaken for the true chinch bug, as it often 
@ Report Commissioner of Agriculture, 1887, pp. 57-58. 
6 Bul. No. 32, Iowa Agr. College Exp. Sta., pp. 363-885. 
