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increase from last winter, and in others the infestation was light. In 
all cases the insects were "breeding in both volunteer and drill wheat. 
The parasite Lysiphlebus testaceipcs Cress, is present. A second trip 
to the infested section was made on April 10 and the insect had com- 
pletely disappeared from most of the fields. 
Colorado. C. R. Jones (April 23): Reports have been received that the grain 
aphid is prevalent in the wheat fields in Las Animas County, near Moehne. 
A few. fields of winter wheat show a damage of about 25 percent; however, 
considerable numbers of ladybird beetles are now working on the grain 
aphid. 
SAY'S PLANT BUG (C hlorochroa sayi Stal) 
California. C. S. Morley (April 2): Say's plant bugs were fcund in heads of 
barley in Kern County at the rate of one to five bugs per five sweeps of 
the net. They were most numerous at the edges of fields planted to 
cotton last year. 
SAT7FLIES (Tenthredinidae) 
Pennsylvania. E. J. Udine: As the wheat stem sawfly ( Qephus pygmaeus L. ) 
has spread into eastern Pennsylvania, it has gradually driven out the 
black grain stem sawfly, Trachelus tabidus P. , which has been estab- 
lished for many years in that part of the country. The history of its 
spread shows that in 1919 it was confined to New York State, while T. 
tabidus occurred abundantly in Pennsylvania. By 1925 & mixture of the 
two species was found in certain sections of Pennsylvania along the 
Susquehanna Valley, with a preponderance of T. tabidus in evidence. By 
1927 parts of the Susquehanna Valley in Pennsylvania showed an' even 
abundance cf both species, and by 193 1 ? most of the eastern Pennsylvania 
and parts of the Susquehanna Valley regionwsre infested preponderantly 
by C. pygmaeus , with the other species rarely showing up. T. tabidus , 
on the other hand, has been steadily advancing to the south and west, 
where nc wheat sawflies originally occurred, and was fcund last year for 
the first time in Pittsylvania County in southern Virginia. 
Kansas. K. R. Bryson (April 22): R. H. Painter and R. C. Smith found saw- 
fly larvae plentiful on wheat. Larvae are leaf feeders but were doing 
apparent injury to wheat. 
FALSE WIRIWORMS (Eleodes spp. ) 
Nebraska. M. H. Swenk (April 22): Reports of severe damage to winter wheat 
by the plains false wireworm (E. opac a Say) were received in April from 
Saline, Sherman, Kearney, and Furnas Counties. One report from eastern 
Furnas County stated that in some fields <$0 percent of the wheat plants 
had been killed during the winter and spring. Another report from the 
southern part of the county indicated that in some fields 7^ percent of 
the v/heat had been killed. The Saline County correspondent wrote that 
these false wireworms were very numerous about the roots of winter wheat 
in two fields. In Sherman County the pest was abundant during the fall, 
winter, and spring in cornfields around Ansley. 
