20 



could not be distinguished. As seen under the microscope the dorsal 

 surface was finely granulate, with numerous transparent spots around 



the anal region and a row 

 of seven or eight spots 

 each side of the median 

 ridge between the two 

 reddish spots. The an- 

 tennae were now seven- 

 jointed and gradually 

 tapered toward the end, 

 the third joint being 

 somewhat the longest, 

 joints 4 and 7 next, and 

 subequal in length, and 

 5 and shortest, nearly 

 of equal length and 

 together being a little 



Fig. 15.— Pulvinaria acericola : a, a full-grown fertilized female, longer than the Seventh, 

 seen from above, in May before the secretion of the egg sac; Taints 4 to 6 each had a 



&, same from side — greatly enlarged (original). ' 



bristle -bearing notch, 

 and the seventh had apparently three such notches on each side. The 

 tarsal digitules were long, slender, and of equal length, while those 

 of the claws were of 

 unequal length ; the 

 shorter one was very 

 stout, curved upward, 

 and the other one was 

 fine, almost straight 

 and capitate, as were 

 those of the tarsus. 

 The hairs around the 

 margin of the body 

 seemed more numer- 

 ous. By October 21 

 most of the larvae had 

 settled on the trunk 

 and branches for hi- 

 bernation. 



In October, 1898, 

 the distinction b e - 

 tween the males and 

 females could be ob- 

 served. The females 

 were more broadly 

 oval than the males, 

 though all were very similar in coloration, possessiug the large reddish 

 spots just described. The antenme of both were 7 -jointed, though rela- 



Fig. 16. — Fulvinaria acericola : a, full-grown female, from above, just 

 beginning to secrete egg sac; &, same from side — greatly enlarged 

 (original). 



