198 



Journal of Agricultural Research 



Vol. VI. No. s 



mentioning it as a great destroyer of the cottony maple scale {Pul- 

 vinaria vitis Linnaeus) and stating that it feeds upon both the woolly 

 maple-leaf scale (Phenacoccus acericola King) and the tulip scale (Eule- 

 canium tulipiferce Cook). 



These references bring the history of the species down to the date of 

 the present paper, which deals with the life history and habits of the 

 species when feeding upon the terrapin scale. 



DISTRIBUTION 



H. hinotata occurs in most of the territory east of the Mississippi 

 River and extends west of this river in some States to the semi- 

 arid region. It is most abundant in the Atlantic States from Connecticut 

 to Maryland, but is common from New Jersey to Illinois. All localities 

 known to the writer are indicated upon the map (fig. i). 



Fig. I. — ^Map showing the distribution La the United States of Hyperaspis hinotata: 



0=doubtful record. 



HOSTS 



►= definite record; 



H. hinotata feeds upon honeydew, aphides, aphis eggs, and mealy 

 bugs and other soft-bodied scales. The larvse, so far as observed, 

 feed upon scale larvae and young scales. They seem to have preyed 

 originally upon species of Pulvinaria, to the egg masses of which the 

 larvae have a superficial resemblance. The species thrives upon the 

 terrapin scale and seems to be rather more abundant where it preys exclu- 

 sively upon this scale. 



