PROCEEDINGS OF THE 



ENTOMOLOGICAL SOCIETY OF WASHINGTON 



VOL. 22 MAY, 1920 No. 5 



A NEW SPECIES OF ALEYRODIDAE FOUND ON AZALEA. (HOM.i 

 BY A. C. BAKER AND M. I,. MOLES, Bureau of Entomology. 



During the past ten years, plant quarantine inspectors have 

 frequently found this species of Aleyrodes on foreign shipments 

 of azalea. Plants from Belgium and Holland have been the only 

 ones affected up until last year, but in November, 1919, the same 

 species was found on plants shipped in from Japan. Though the 

 species appears to be common in these countries it apparently 

 has been left undescribed, and because of its frequency on im- 

 ported plants it was thought best to describe and figure it here. 

 The insect is not abundant on the host, only four or five pupa 

 cases being found to a leaf, nor does it seem to be injurious at 

 this time. 



The species was first intercepted in this country by Inspector 

 Francis \Vendle in Philadelphia, October 15, 1910, and in Novem- 

 ber of the same year it was found on imported plants in Wash- 

 ington, D. C. In the year 1913, it was found on foreign ship- 

 ments by B. H. Walden near New Haven, Conn., and again at 

 Cromwell, Conn., by Q- S. Lowry, and in October, 1913, it was 

 found by \Y. P. Flint at Beardstown, 111. C. E. Temple found 

 it on foreign stock February, 1915, at Baltimore, Md., and in 

 191() it was found in Gainesville, Florida by E. \V. Berger. The 

 collections for the year 1916 were all from plants which had been 

 inspected by Federal workers here in Washington, and the latest 

 finding of this species on foreign plants was by Dr. S. I. Kuwana 

 at San Francisco. 



Aleyrodes azaleae, n. sp. Baker and Moles. 



The first plants \\hich were infested with this ^peeies were received October 

 1"), I'M!) from Ghent, Belgium; other plants were sent from Boskoop, Holland, 

 Nov. 11'. I'.MO; Ghent, Belgium, Oct. 24 and :;<), 1<U4; Lokeren, Belgium, 

 Feb. 10, l!il.~>: Mellc, Belgium, Nov. 7, 1910, and again from Ghent, Belgium, 

 Dec. 1."), Hilli; Boskoop, Holland, March 15, 1920, and Shiznoke, Japan, 

 Xv. lOlH. The pupa cases are light in color and without wax secretion of 

 any sort. 



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