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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 12 



Tubular ducts apparently few, all small and without a raised rim about the mouth, 

 not at all concentrated near the lateral margins of the abdominal segments. Legs 

 and antenna} presenting no distinctive characters. Anal lobe and anal ring setae 

 approximately equal, two or three times as long as the diameter of the anal ring. 



Material Examined. Specimens from the type material; from 

 pine, Kiushiu, Japan; from Pinus thunbergii, Yokohama, Japan; from 

 pine in a Japanese nursery at Oakland, California. 



Notes. This species very closely resembles another that I take 

 to be P. azalecc (Tins.), of which I have specimens from numerous 

 hosts in Japan. The two differ chiefly in the fact that in the latter 

 species the tubular ducts are very numerous and are concentrated 

 near the lateral margins of the abdominal segments and also in the 

 fact that in this species the derm of the adult tends to be of a bluish 

 color and the body contents black. 



Pseudococcus hromelia; (Bouche) 



Fig. 16. Pseudococcus hromelim (Bouche): left, penultimate and anal lobe cer- 

 arii; right, ventral side of anal lobe; above a disproportionately enlarged dorsal spine. 



Habit. The existing descriptions of the species are not especially 

 definite in regard to the appearance of the species in life and I can 

 add but little. The marginal tassels are quite long, the caudal pair 

 being but little longer than the others. Apparently the species does 

 not form an ovisac. 



Morphological Characteristics. With seventeen pairs of cerarii, all with 

 auxiliary setae, with numerous pores and in part with three or more cerarian spines. 

 There is some variation in regard to the number of cerarian spines but in general the 

 arrangement is as follows. Anal lobe pair always with but two; four or five pairs 

 anterior to these and the first three on the head normally with three or four spines; 

 remainder normally with but two. The spines of the anal lobe pair are largest. No 

 chitinized areas about any of the cerarii, except sometimes a faintly indicated area 



