SYSTEMATIC TREATMENT 45 



Pseudococcus ephedrae (Coq.). 



1890. Dactylopius ephedrae Coquillet, West Ame.r. Scientist 7 :43. 



In life. "Adult female elongate-ellipsoidal, from two and a half to 

 three times as long as broad, dark olive, almost black, thinly covered with 

 a snow-white mealy powder not entirely concealing the ground color; 

 cottony appendages confined to posterior end of body, the longest less 

 than half the length of the body. . . ." "The adult female secretes a 

 layer of white cottony matter from the lower part of her body, and this 

 is gradually extended upward until finally the entire insect is enclosed in 

 a cottony sac." (Coquillet.) 



Morphological characteristics. According to Coquillet's description 

 the antennae are 8-segmented and the claw is without a denticle. 



Type host and locality. From Ephedra calif ornica in Los Angeles 

 County. 



Hosts and distribution. Known only from the original description. 



Notes : This species has not been seen since it was originally described, and 

 nothing can be added to the description. It may possibly be an Erium. 



Pseudococcus krauhniae (Kuwana). 

 Plate 1, fig. 8. (Also see plate 1, fig. 7.) 



1902. Dactylopius krauhniae Kuwana, Proc. Calif. Acad. Sci., (3), 3:55, pi. 9, 

 figs. 39-40. 



In life. "Enclosed in a cottony sac of irregular shape," (Kuwana). 



Morphological characteristics. Seventeen pairs of cerarii present, 

 all with but two spines, without auxiliary setae and with but very few 

 pores. The cerarian spines are all practically of the same size and in all 

 the tip is produced into a sort of flagellum. No chitinization associated 

 with any of the cerarii. Ventral side of the anal lobes with a narrow chit- 

 inized bar extending in from the base of the anal lobe setae. Dorsal body 

 setae very numerous, stout at the base, quite long and with the tips more 

 or less flagelliform. Triangular pores numerous, intermingled with many 

 small cylindrical ducts without a raised rim about the mouth. Anal lobe 

 setae perhaps one and a half times as long as the anal ring setae. 



Immature female not seen. 



Authentication. Types examined. 



Type host and locality. From Krauhnia floribunda, Yokohama, 

 Japan. 



Hosts and distribution. Among the material received from Mr. Essig 

 is one slide labeled "From wisteria and persimmon," NordhofT, which is 

 unmistakably this species, the types of which are in the Stanford collec- 

 tion. It has previously been recorded only from Japan and once from 

 quarantine in New Jersey, the latter record needing verification. 



