
THE CLOUDY-WINGED WHITE FLY: DISTRIBUTION. 89 
injury to grapefruit the authors consider 25 per cent a fair estimate 
of the injury by the cloudy-winged white fly as compared with about 
10 or 15 per cent by the citrus white fly. The total loss in Florida 
due to the cloudy-winged white fly is estimated by the authors at 
between $100,000 and $125,000 per annum at the present time. 
DISTRIBUTION. 
So far as known at the present writing the cloudy-winged white fly 
occurs in 12 counties in Florida. The locality list is given below:' 
Brevard County: Mims, Sharpes, Titusville. 
Dade County: Miami. 
Hillsboro County: Riverview, eS Ybor City, Clearwater, Dunedin, 
Largo, Ozona, Safety Harbor, Saint Petersburg, Sutherland. 
Manatee County: Bradentown, Oneco, Palmetto. 
Monroe County: Key West. 
Orange County: Geneva, Maitland, Ocoee, Orlando, Oviedo, Waco, Winter Park. 
Palm Beach County: Palm Beach, West Palmbeach. 
Polk County: Auburndale, Bartow, Lakeland, Winterhaven. 
St. Lucie County: Fort Pierce. 
Sumter County: Wildwood. 
Volusia County: Haw Creek, Holly Hill, Port Orange, Pierson. 
Outside of the State of Florida the only available records of the 
occurrence of the cloudy-winged white fly are those of the Bureau of 
Entomology in connection with specimens in the collection. Mr. 
A. L. Quaintance has identified as this species specimens from New 
Orleans (1890) and Baton Rouge, La. (1891), Pass Christian, Miss. 
(1889), and Raleigh, N. C. (1889). In a brief examination at Audu- 
bon Park, New Orleans, in August, 1909, the senior author was 
unable to find any evidence of the presence of this species, although 
the citrus white fly was prevalent on citrus trees, privets, and other 
food plants. 
As stated in the footnote on page 27, the species occurring at 
Bakersfield, Cal., in 1907 was the cloudy-winged white-fly. Owing 
to the fact that the insect is, so far as known, confined to citrus as a 
food plant and only a limited number of these in an isolated location 
were infested, the thorough measures adopted by the agents of the 
State commissioner of horticulture met with complete success, and 
there is no record of this species occurring at present in this State. 
Its occurrence in Cuba has already been noted, specimens having 
been received from Santiago de las Vegas in 1905. 
The distribution of the cloudy-winged white fly in Florida, so far 
as now known, is shown in figure 13. The territory included in the 

1The authors have determined as Aleyrodes nubifera specimens from all of the 
localities listed above except the following, which are listed upon the authority of 
Dr. E. W. Berger: Holly Hill, Ybor City, Bartow, Clearwater, and Safety Harbor. 
