428 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 2 



N. 1902=In Neumann's Notes sur les Ixodides I. 



N. 1904=7&*U II. 



N. 1906=Ibid. IV. 



Newell Coll.=In the collection of Prof. Wilmon NeweU. 



Niles 1900=Recorded by Dr. E. P. Niles in Bulletin No. 114 of the 

 Va. Agr'l Exp. Station. 



N. Y. S. M. Coll.=In the collection of the New York State Museum. 



Osb. Coll.=In the collection of Prof. Heibert Osborn. 



Pack. Amer. Nat. 1868=Recorded in American Naturalist, Vol. II. 



Pack. Ann. Rep. 1869=Recorded in First Annual Report of the Pea- 

 body Academy of Science. 



Pack. Amer. Nat. 1869=Recorded in American Naturalist, Vol. III. 



Pack. Guide=Recorded in Packard's Guide to the Study of Insects. 



S. and S. 1901=Recorded in Salmon and Stiles work on Cattle Ticks. 



Say 1821=Recorded by Say in the Journ. Acad. Nat. Sci. of Phila. II. 



Sim. Aub. and Noc. 1909=Recorded in article by Simond, Aubert 

 and Noc in Comp. Rend. Soc. Biol., Paris, Vol. 66. 



Stiles Coll.=In the collection of Dr. C. W. Stiles. 



Washb. Coll.=In the collection received from Prof. F. L. Washburn. 



W. and W. 1909=Reeorded by Drs. W. B. Wherry and D. C. Well- 

 man in Entomological News, Vol. XX, p. 376 (1909). 



THE IDENTITY AND SYNONYMY OF SOME OF OUR 

 SOFT SCALE-INSECTS 



By J. G. Sanders, Bureau of Entomoloyy, Washington, D. C. 



So much confusion and misapprehension concerning the identity 

 and classification of our soft scales has arisen during the past score 

 of years that the average entomologist has been unable to determine 

 the common species with any degree of certainty. This deplorable 

 condition of our knowledge of this group of scale insects has been to 

 a great extent the result of injudicious and hasty conclusions com- 

 bined with scattered, meagre, unillustrated descriptions. 



There has always been a tendency among entomologists, in dealing 

 with insects belonging to the lower groups of Homoptera — Coccidae, 

 Aleyrodidae, Aphididae — to lay too much stress upon the particular 

 host plant involved. The fact that a certain colony of insects, although 

 apparently quite similar to another colony on its normal food plant, 

 is found on a new food plant has influenced many entomologists to 



