2IO NEW YORK STATE MLSEUM 



sharply defined, the caudal extremity is notched, and from the tips of the 

 last segment there extends a pair of delicate Idaments. The \'oung have a 

 general resemblance to tiny trilobites. 



Life history. No signs of eggs were to be G2en, though Professor 

 Cook describes them as small, yellow and oval. On examining the adults, 

 a number of young were found underneath. Apparently the species^ is 

 viviparous in this latitude, as recorded of it farther south by Dr Riley. In 

 Florida all stages have been observed during the winter, ami it hibernates 

 as larvae at Washington I"). C, according to Dr Riley. The numerous 

 young on the branches and those still issuing would indicate that the larvae 

 must hibernate in New York. The only observed difference in October 

 between those which had issued some time before and those emerging, was 

 in the color. The older ones still retained the larval form, but they had 

 turned black, were closely applied to the bark and attached by a slender 

 thread. In this condition they were apparently ready for hibernation, since 

 on being disturbed there was no effort to move off, as in the case of 

 younger individuals. 



There is probably but one annual generation in this latitude, as there 

 is little chance that young would be produced earlier here than in .Mich- 

 igan, where they appear late in August as stated by Professor Cook. 



This insect produces a large amount of honeydew, which has a nau- 

 seating odor. A parasite, Coccophagus f la vosc u t e 1 1 u m Ashm., 

 has been reared from this scale insect, as recorded by Dr Howard. 



Remedies. In case of a bad infestation, it would be well to scrape all 

 the old insects from the branches in the autumn, and then treat the infested 

 limbs with either whale oil soap or kerosene emulsion. This, if undertaken 

 before many young have emerged, should nearly free the affected trees. 



Bibliography 

 1898 Felt, E. P. X. Y. St.ite Ent. i4tli Rep't. N. V. State Mus. Bui. 23, p. 213-16 



