June 19, 19 16 Aleyrodidae 463 



hind tibiae 0.36 mm., hind tarsus, proximal 0.112 mm., distal 0.72 mm. Claws normal, 

 with a hairy central paronychium; genital segment dark brown, 0.112 mm., broad at 

 the insertion of the claspers. These latter are dark-brown, becoming lighter at their 

 distal tips. They are 0.128 mm. long and each about 0.03 mm. at the shoulder near 

 the base. They are acute at the tips, curved inward, and armed on the inner margin 

 with a number of prominent spines (fig. x, G). A few small hairs are scattered here 

 and there, situated on small tubercles. The penis is as long as the claspers, somewhat 

 bulbous at the base, greenish yellow, and slightly curved upward. 



Adult FEm.'U.e. — Unknown. 



Described from adult males in balsam mounts and numerous pupa cases in balsam 

 mounts and dry upon the foliage. 



Type. — Cat. No. 19099, U. S. National Museum. 



Aleurocanthus woglumi Ashby.' 



AleuTocanlhus woglumi Quain., Ashby, 1915, in Ann. Rpt. Dept. Agr. Jamaica, 1914/15, p. 31. 

 Aleurocanthus woglumi Quain., Ashby, 1915, in Bui. Dept. Agr. Jamaica, n. s. v. 2, no. 8, p. 322. 



Specimens of this species (fig. 2; PI. LXIV, LXV), w^hich may be 

 called the "spiny Citrus white fly," were first received by the Bureau of 

 Entomology on June 16, 1 910, from Dr. E. W. Berger, the material coming 

 from India from H. Maxwell-Lefroy. Specimens were also received in 

 1910 from Mr. George Compere, who had collected the insect in the Philip- 

 pine Islands. During 1910 and 191 1 Mr. R. S. Woglum, in the course 

 of his search for parasites of the orange white fly (Dialeurodes citri 

 Ashm.), found this insect common and widely distributed on orange in 

 India and Ceylon, and it has subsequently been received from that 

 region from Mr. A. Rutherford. 



Our first knowledge of its presence in the Western Hemisphere came 

 with the receipt of specimens from Col. C. Kitchener, Half Way (King- 

 ston), Jamaica, on November 27, 191 3. Additional material was 

 received during 1914 from Jamaica from Col. Kitchener and from Prof. 

 S. F. Ashby, Microbiologist of the Jamaica Department of Agriculture. 

 Under date of February 5, 1916, specimens were submitted by Mr. P. 

 Cardin, Entomologist of the Cuba Agricultural Experiment Station, 

 for verification of determination made by Prof. Ashby. On February 7, 

 1 91 6, a large lot of orange leaves infested with A. woglumi was received 

 from Mr. L. J. K. Brace, Nassau, New Province, Bahamas, who states: 



Certain orchards in this island at least have been very much affected with this 

 insect, all of the leaves being so much infested on their undersurfaces that they present 

 a black appearance, not only killing the trees but causing some persons to attempt to 

 stop the mischief by cuttiTig down the trees, though the yoimig shoots become again 

 covered * * *. I have no doubt that the planters' exchange have introduced 

 this pest from the East. Plants have been for some time obtained by individuals 

 here from the Jamaican establishment and also from Florida. 



Prof. Ashby thinks the insect was introduced into Jamaica on the 

 mango during the last 20 years. In that island it has become very 



1 Aleurccani'.itis woglumi, the writers' mJiauscript name for this species, vvus furnished to Prof. Ashby. 

 According to the International Code, his descriptive remarks, as cited, make him the author of the 

 species. 



