August, '19] FERRIS: MEALY-BUGS 293 



Suspecting, from the description and figures given by Green, that 

 the two were identical I forwarded specimens to him for comparison. 

 He informs me that the two are undoubtedly the same. This record 

 is a matter of some interest as the species had not before been recorded 

 outside of Cahfornia. Here it is without much doubt an introduced 

 species and as its original home is unknown all records of its occurrence 

 in other lands are of importance as affording possible clues to its origin. 

 However, I am inclined to think that it is an alien in England as well 

 as here, for it seems doubtful that such a species would so long have 

 remained unnoticed. 



The necessity of changing a name as well known as this affords a 

 strong argument against the practice of adopting the scientific name 

 of a species as its common name also. It may as well be recognized 

 that in this group especially stability in nomenclature will certainly 

 not be arrived at for many years to come. This is an unfortunate 

 condition but it may be greatly ameliorated by the adoption of well 

 chosen vernacular names. It is also to be taken as evidence of the 

 necessity of studying the scale insects from collections representing the 

 widest possible geographical range and not from merely local faunas. 



2. Pseudococcus maritimus (Ehrh.) in England and Florida. From 

 Mr. E. E. Green I have received for determination specimens of 

 a mealy-bug which he informs me occurs on various plants in 

 green-houses in England. This is certainly P. maritimus (Ehrh.) 

 ( = P. bakeri Essig), which has not before been recorded from any point 

 outside of the United States. 



From Mr. J. Chaffin of the State Plant Board of Florida I have 

 received this same species, from sweet potato, tomato and avocado on 

 the Dry Tortugas Islands near Key West. It has not before been 

 recorded from this portion of the United States. 



3. Pseudococcus pini (Kuwana) in California. From ]\Ir. H. S. 

 Smith I have received specimens of this species from pine in a Japanese 

 nursery at Oakland. It was originally described from Japan and has 

 not previously been reported from this country, although Mr. Ehrhorn 

 informs me that he has seen what was probably this species on pines 

 in a nursery at San Jose. I append a redescription of the species. 



4. Pseudococcus brorneliae (Bouche) in Florida. This species 

 appears regularly in the "Reports of Pests Intercepted" by the 

 various quarantine offices but, as far as I am aware, has not been 

 recorded as established in the United States. From Mr. Ghaffin 

 I have received specimens from roots of i)anana at Florence \'illa, 

 pineapple at Frost Proof and citrus at Ft. Meyers, Florida. The 

 existing tlescriptions an* (juitc inadctiuate and I append a redescription. 



5. Pseudoccocus inryatus (Ckll.) in Florida. This widely distributed 



