68 REPORT UPON A COLLECTION OF 



digging about the roots of those that may not. Practically all of the 

 soft scales are attended by ants of the genus Crematogaster and are pro- 

 tected by shelters of a papery consistency built by the ants across the 

 cracks in which the scales are hidden or even over individuals that may 

 otherwise be freely exposed upon the twigs. It is frequently only by the 

 presence of the ants that any indication is given of the presence of the 

 scales. 



TYPES 



In the case of all the new species a holotype has been designated, and 

 these types are deposited in the Stanford Collection of Coccidae. Para- 

 types of all the new species, except Steatococcus tabernicolus, will be de- 

 posited in the National Collection of Coccidae. 



ACKNOWLEDGMENTS 



To the authorities of the California Academy of Sciences, to Dr. 

 W. K. Fisher and Professor R. W. Doane of Stanford University, and to 

 Dr. L. O. Howard of the United States Bureau of Entomology, are due 

 acknowledgments for assistance in obtaining the financial support that 

 made possible this report. To Mr. Harold Morrison of the Bureau of 

 Entomology I am indebted for the comparison of certain species with 

 types in the National Collection of Coccidae. I am also indebted to my 

 wife, Roxana S. Ferris, for much valuable assistance in the identification 

 of various plants. 



