ENTOMOLOGICAL NEWS. 



[Jan., 'c6 



Standards of the Number of Eggs Laid by Insects IV. 



Being averages obtained by actual count of the combined 

 e gg s from twenty (20) depositions or masses. 



BY A. ARSENE GIRATJLT. 



5. ARILUS CRISTATUS Linnaeus. 



The egg-masses were collected at Annapolis, Md., in a small 

 peach orchard, where they have been unusually abundant for 

 the past three or four years. In other orchards, in the imme- 

 diate vicinity, none could be found, nor on trees other than 

 fruit trees, except rarely. The insect apparently shows quite 

 a preference for peach, as a place of deposit for eggs, and it 

 seems to have a tendency to exist in isolated colonies. 



Most of the estimates of the number of eggs deposited by 

 this insect fall below the average obtained. 



* For the first three of this series see ENT. NEWS, 1901, p. 305; 1904, pp. 2-3, and 1905, 

 p. 167. 



M. WITTE says the peace of Portsmouth was signed in order to get rid 

 of the mosquitoes. 



