20 



SCALE INSECTS OF SANTA CRUZ PENINSULA 



bearing a number of small, tubercle-like projections, the dorsum with 

 three spines of the same size and shape as those of the body, and the 

 ventral side with a single slender seta. Anal lobe setae scarcely longer 



Fig. 6. Eriococcus quercus (Comst.) : A, antenna of adult female; B, anal lobes, 

 dorsal aspect left, ventral aspect right ; C, types of spines ; D, wax duct ;' E, 

 tibia and tarsus. From specimen from Quercus agrifolia, on the Santa Cruz 

 Peninsula. 



than the anal ring setae. Antennae (Fig. 6A) rather slender, 7-8-seg- 

 mented. Legs (Fig. 6) quite slender, the tibia always much exceeding 

 the tarsus in length, the claw with a small tooth, the posterior coxse with- 

 out pores. Tubular ducts (Fig. 6D) with a broad and shallow cup. 



Notes : This is a very distinctive species, the form of the spines, the un- 

 usual length of the tibia and the tubercles on the anal lobes separating it at once 

 from the other North American representatives of the genus. I have at hand 

 specimens from several localities and while there is evidently a considerable varia- 

 tion in the size of the dorsal spines, these in some cases being much smaller than 

 those of the margin and in others nearly or quite as large, the other characters 

 are so constant that I consider all to belong to the same species. I have not seen 

 the types of E. howardi Ehrh. but it is in all probability the same. 



The description given above is from specimens from Quercus agrifolia at 

 Palo Alto. 



