294 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol, 12" 



tropical species appears to have been recorded but once from the 

 United States, from "cactus and other plants" at Brownsville, Texas. 

 From Mr. J. Chaffin and Mr. C. J. Drake I have received specimens 

 taken from Magnolia and mulberry at Gainesville, Oleander at Key 

 West and "undetermined weed " at Winter Haven, Florida. I append 

 a redescription of this species also. 



6. Pseudococcus comstocki (Kuwana), a dangerous mealy-bug. 

 Pseudococcus comstocki (Kuwana) was originally described from speci- 

 mens taken from mulberry and maple in Japan, In a sending of 

 mealy-bugs recently received from Mr. Kuwana there were included 

 specimens of this species from a long series of hosts, including the 

 following: Castanea, cherry, citrus, Eleagnus, Euonymus, Kraunhia, 

 melon, persimmon and peach. What is unmistakably the same 

 species occurs in the eastern part of the United States, Professor Doane 

 having taken specimens from apple, horsechestnut, Hydrangea, maple, 

 mulberry, wild cherry and some other hosts on Staten Island, New 

 York. Professor Doane informs me that in this locality the species 

 is a serious pest and that some of the mulberry trees have been much 

 injured by it. I have received the same species from various hosts 

 in Maryland, also. 



From the facts recited above it is obvious that this species is a 

 worthy candidate for admission to that select fraternity which includes 

 Pseudococcus citri, gahani, longispinus and maritimus. Its introduc- 

 tion into California is certainly to be feared. 



There occurs on the Monterey pines on the Campus of Stanford 

 University a mealy-bug that I have not been able to separate from P. 

 comstocki. However, the behavior of these local representatives is 

 beyond reproach. They appear to be confined to the pines; they are 

 relatively few ; they are heavily parasitized ; there are apparently but 

 one or two generations per year. It is probable that this represents 

 a monophagous strain or race of this species and that its spread to 

 other hosts is not to be feared. 



I have described this species in an earlier paper dealing with the 

 California species of mealy-bugs and shall not consider it further here. 



The Mealy-Bug at Ojai 



From Mr. H. S. Smith and from Mr. E. O. Essig I have received 

 specimens of a mealy-bug taken from citrus at Ojai. In regard to the 

 identity of this species there is unquestionably room for argument. 

 Basing my opinion entirely upon shde mounts I have said that while 

 the species is undoubtedly very close to P. citri it is apparently distinct 

 and that of the species known to me it most closely approaches P. 

 kraunhice (Kuwana) from Japan. Extreme examples are easily 



