466 Journal of Agricultural Research voi. vi, No. 13 



Aleurolobus marlatti (Quaintance) 



AleuTodes marlatti Quain., 1903, in Canad. Eat., v. 35. no- 3. P- 6r. 



This species (Pi. LXVI, fig. 3) was collected by Mr. C. L. Marlatt 

 on May 17, 1901, at Kumomoto, Japan, on orange; also by Mr. R. S. 

 Woglum on Citrus sp. and Morus sp. at lyahore, India; also collected by 

 Mr. Woglum on Ficus sp. in the Royal Botanic Gardens, Ceylon; on 

 an unknown tree in the Botanic Gardens, Buitenzorg, Java. This 

 insect has also been received by the Bureau of Entomology from Mr. 

 S. I. Kuwana, collected at Fukuoka, Japan. Mr. Kuwana states that 

 this same species has been collected on Rivkin Island. One lot of infested 

 orange leaves is also in the Bureau collection from Tokyo, Japan. 



Aleurothrixus floccosus (Maskell) 



AleuTodes floccosa Mask., 1896, in Trans, and Proc. N. Zeal. Inst., v. 2S (n. s. v. 11). 1895, P- 432- 

 Aleurodes horridus Hempel, 1899, in Psyche, v. 8, no. 280, p. 394. 



This species (fig. 3, //) is based on material from Jamaica on lignum- 

 vitas (Guaiacum officinale?) and was first recorded on orange by Cockerell 

 (1902) ^ from Mexico. The insect has several color phases, ranging from 

 clear yellow, the typical and more abundant form, to individuals with 

 the dorsum striped with dark brown, or with the dorsal disk dark 

 brown and the submarginal area yellow, etc. 



Hempel's A. horridus from Brazil on guava (Psidium guajava) is 

 apparently the same as A. floccosus. This latter differs from A. howardi 

 only in the absence of a comb of teeth on the caudal margin of the 

 vasiform orifice (fig. 3, H). Both A. floccosus and A. howardi are almost 

 always present together on the same leaf and their food plants and 

 distribution are practically identical. A. floccosus is common in the 

 islands of the West Indies and also occurs in Florida, Mexico, British 

 Guiana, Brazil, Argentina, Canal Zone, Chile, and Paraguay. In addi- 

 tion to the orange, lime, grapefruit, etc., A. floccosus has been taken 

 on the sea-grape (Coccoloba uvifera), Plumeria sp., Baccharis genisielloides, 

 guava, a coarse grass, and a climbing vine. 



Aleurothrizus howardi (Quaintance) 



Aleyrodes howardi Quain., 1907, U. S. Dept. Agr. Bur. Ent. [Bui.] 12, pt. s. Tech. Set., p. 91. 



This species (fig. 3, E, J; PI. LXVI I) occurs on the same host plant 

 and has the same distribution as A. floccosus. It was apparently first 

 found in Florida by Prof. P. H. Rolfs at Miami on sea-grape, September 

 25, 1900, and therefore gained a foothold in that State some years pre- 

 vious to its discovery by Dr. E. A. Back. 



Aleurothrizus ported, n. sp. 



This species (fig. 3, A-D, F, G, I, K, L; PI. LXVIII) has been received 

 only from Chile and Brazil. The first collection was sent by Prof. T. D. A. 



* Bibliographic citations in parentheses refer to " Literature dted," pp. 471-472. 



