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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 10 



of America by W. L. McAtee who examined the material sent him by 

 H. H. Knight. Of these four varieties, Paracalocoris hawleyi var. 

 hawleyi and P. hawleyi var. ancora are the common forms on the hop. 

 The former has a pale lateral stripe on the corium (Fig. 34), which 

 is not present on the latter, P. hawleyi var. ancora is much more 

 numerous than the other form (Fig. 35) . 



Fig. 34. Paracalocoris hawleyi, var. 

 hawleyi, about X 7 (original). 



Fig. 35. Paracalocoris hawleyi var. 

 ancora, about X 7 (original). 



Habits 



The nymphs are active and, when disturbed, crawl rapidly among 

 the leaves and vines and into the cracks of the hop poles. At rest, 

 they may usually be found on the under sides of the most tender leaves 

 — often five to ten on a leaf and one hundred or more to a hill. When 

 jarred, they drop straight down to a lower leaf to which they often 

 adhere by everting the end of the alimentary canal. They prefer the 

 tender leaves and vines and are, therefore, in August, more numerous 

 near the tops of the poles. 



The adult, when disturbed, drops a short distance and then flies 

 gradually downward in a zig-zag course. At rest they may be found 

 on the vines, poles, and on the upper and under surfaces of the leaves. 



Seasonal History 



Over-wintering eggs are laid in hop poles from the middle of August 

 till September, as determined by dissected specimens. These hatch 

 the following year from June 1 till nearly the first of July. The 

 nyniphal period lasts about thirty days, adults beginning to appear 

 about the first of Julv. Nearlv all are winged bv the first of August. 



