THE SO-CALLED ‘‘ CURLEW BUG.’’ Th 
cotton. Plate VIII shows the area where this dividing line between 
the two crops of the previous year was located and the radical dif- 
ference in attack by Sphenophorus between the two portions of the 
field. This field illustrates conclusively both the fact that the 
beetles winter in the fields where they develop and also that crop 
rotation is effective in preventing serious injury. 
NATURAL ENEMIES. 
Mr. W. L. McAtee, of the Biological Survey, has recorded the 
finding of Sphenophorus callosus in the stomach of the nighthawk 
( Chordeiles acutipennis texensis) at Wallaceville, Tex., August 4, 1907. 
This is the only exact record obtainable of the eating of this species by 
birds. In addition Dr. Chittenden has placed the following notes at 
the disposal of the author: 
Among the larvee of this species in our rearing cages in late-August and early Sep- 
tember some years ago were some which had died, apparently of fungus attack, although 
there is a possibility that the fungus attacked the insect while dying or after death. 
In another instance, during the last week of August, larvee of this same species were 
dying and specimens were referred to Dr. Haven Metcalf, a pathologist in the Bureau 
of Plant Industry, who stated that they were apparently free from fungi, and that 
while there was a possibility of the presence of a bacterial disease such presence could 
not be established at that stage. Examination, however, revealed the fact that the 
bodies of the larve were fairly reeking with nematodes, and it is not impossible that 
these are the cause of the insect’s fatality. 
On September 5 and 6 Mr. Walton found, in cornfields in North 
Carolina where the corn had been destroyed (see Pl. VIII), many 
exit holes of the predaceous maggots of a robber fly, Eraz lateralis, 
between the rows of corn, and it is possible that these may have 
devoured some of the larve of Sphenophorus. Lamphyrid larvee 
were noted, both by the author and by Messrs. King and Walton, 
about the infested hills of corn. Although these are known to be 
predaceous, none of us was able to catch them in the act of devouring 
the larve of the curlew bug. 

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