58 THE CALIFORNIA SPECIES OF MEALY BUGS 



Authentication. Specimens from type host and locality, agreeing in 

 general with the original description. 



Notes: I am by no means certain that all the forms referred by me to this 

 species are rightly placed. The extreme forms observed are sufficiently different 

 to arouse doubt, yet there appears to be an almost perfect gradation between these 

 and I can find no real basis upon which to effect a separation. 



Phenacoccus eriogoni n. sp. 



Plate 2, fig. 14. 



In life. Thickly covered with white wax, the lateral tassels short 

 and broad, the caudal tassels somewhat longer. Ovisac not observed. 



Morphological characteristics. All the cerarii with more than two 

 cerarian spines, the anal lobe pair having as many as ten, the remainder 

 three to six, these spines slender, sharply pointed and slightly constricted 

 at the base ; no auxiliary setae. Pores of the cerarii scarcely exceeding 

 the spines in number and not at all concentrated. The anal lobe and 

 penultimate cerarii show more or less of a tendency toward the develop- 

 ment of a chitinized area, which is, however, never well defined. Ventral 

 sides of the anal lobes without chitinized area. Dorsal body setae almost 

 lacking, the few that are present being extremely minute. Triangular 

 pores numerous, mingled with a few large tubular ducts with raised rim 

 about the mouth. Anal lobe setae equal to or a trifle shorter than the 

 anal ring setae. 



Immature female not differing materially from the adult. 



Type host and locality. From crowns and stems of Eriogonum 

 nudum, Stevens Creek, Santa Clara County, Calif. 



Host and distribution. Known only from the above host and local- 

 ity. It is common enough in this vicinity. 



This is quite distinct from any other species seen by me, and I can- 

 not connect it with any described form. 



Phenacoccus kuwanae Coleman. 



1903. Phenacoccus kuwanae Coleman, Jn. N. Y. Ent. Soc. 11:62, pi. 5, figs. 1-2. 



In life. "Length 1.6 mm.; color yellowish-white; body sparsely 

 covered with a yellowish-white powder ; . . ." With ovisac, "length 

 about 2.5 mm.; ovisac yellowish-white, short, oblong, smooth." (Cole- 

 man.) 



Type host and locality. "On a species of lichen growing on the 

 weeping spruce, Picea breweriana, on the east side near the summit of 

 the Salmon Mountains, about ten miles west of Salmon Forks, Siskiyou 

 County, Calif., August 3, 1901." 



Hosts and distribution. Known only as above. 



