104 Neu) York State College of Forestry 



birch, willow, aspen, maple, and on none of which have the floccu- 

 lent nymphs been seen alive. Those taken on Prunus have the 

 thorax of yellowish white or light greenish with three prominent 

 orange or red spots on the three lobes ; the abdomen is green ; tip of 

 upper genital valve, tarsal spurs, claws and antennae, except at 

 base, are black ; eyes black. The evidence given in brief above 

 seems to warrant the conclusion that P. astigmata, as suspected 

 by Crawford, is only an uncolored form of P. macuJata and as 

 P. maciUata has priority, the former species becomes a synonym. 



It seems also fair to infer from the seasonal history and the 

 habits of related species that eggs are deposited in fall, probably 

 in or around the buds of fire cherry, where they remain till the 

 following summer Avhen they hatch, and develop as the cottony 

 covered nymphs of June and July. 



XOThJ REFERRINd TO FIGURE 42 



Chermes pinifoliae Fitch. This species, illustrated in Fig. 42, page 100, is 

 not discussed in detail, our observations being quite fragmentary, but it may 

 be mentioned that females ovipositing on pine leaves were seen to extrude 

 eggs and, after laying a mass of ,S5 to 40 eggs, to turn around and deposit 

 another mass, proving very definitely that Fitch's conclusion that eggs were 

 not extruded but held within abdominal walls, the dead insect adhering to the 

 leaf, is not the rule for the species. 



