315 



of $1.0()0to$l,r)00 per year had at tliattiiiie not a single tree Avliicli bore 

 frnit. The lower leaves die first and fall oft", the flowers fall, or the nuts, 

 if they have been formed, dwindle away and do not arrive at mata- 

 rity. intimately budding- leaves are attacked and the crown drops off, 

 leaving tlie withered trunk. This Avork, however, was not to be attrib- 

 uted entirely to the Aleyrodid, since a bark-louse occurred also ui)on 

 the leaves. Curtis described the former insect as AJeijrodcH cocoh^ and 

 accompanied his description by a fairly recognizable figure of tlie larva 

 and adult male and of the abdomen of the female. 



In the Entomolo(jufs Montlily Maf/azlne 

 for February, 1892, Mr. J. W. Douglas, in 

 connection with an article by Mr. A. 0. F. 

 Morgan, erected for this and one other 

 species, the genus Aleurodicus, the prin- 

 cipal character separating it from Aley- // 



rodes being the bifurcation of the median ' -.//.^^ .. ., 



' ( ■ i -J '■ '■ '■' Vi 

 nervure of the wings. The locality given i'\ . \^ ':><?! I 



is Demerara. 



Up to the i:>resent time this insect has f^L 



been found only ux^on cocoanut palm, but ' ; 



we have to record its recent appearance 

 upon Guava in the Island of Trinidad. 

 The cocoanut injury alone would have 

 been sufficient to warrant the presenta- 

 tion of some account of this species in \ ' i . ' , 

 this journal, since the growth of the cocoa- ) 

 nut palm as a fruit crop in south Florida ^^^ '^ ■ 

 is fast reaching considerable importance; - 

 but the fact that the species attacks 



Guava also adds to the insects importance. - 



Several species of the genus Psidium, in- ^ 



eluding a number of varieties of Guava 



of economic imi^ortance, are now grown .:. 



in Florida and the industry is increasing. v. 



Up to the i)resent time, as we notice from ■ 



Mr. H. E. Van Deman's report on the con- ^lo. As^.-A.Uurodxcm coeds Curt.: a, 

 dition of tropical and semi-tropical fruits luu-grown larvai skin from below; 



i-i TT 'J. 1 otj. J. - ^ • o ^- same from above — enhirued (orig- 



in the United States, no insect enemies ot j,,.^,^ 



the plant have been known in Florida. 



The injury which this new insect is doing in the West Indies 

 seems to be considerable, and its imi)ortation into Florida is probably 

 only a question of time, if not already brought about. The Guava is 

 even less fitted to withstand the attacks of a rapidly spreading species 

 like this than is the cocoanut-palm ; and there is, therefore, every reason 

 to forewarn Guava growers of the appearance and habits of the insect. 



The Trinidad specimens which we have received (through the kind- 



L 



