Notes on some of the Scale Insects inimical to 

 Vegetation, found in the Botanical Gardens, 

 Georgetown, British Guiana. 



By S. J. Mclntire, F.R.M.S. 



ROM time to time since last autumn, Mr. 

 Robert Ward, of the above Gardens, has 

 sent me, by the instructions of G. S. JENMAN, 

 Esq., F.L.S , the Superintendent, consignments of leaves 

 of plants, shrubs, and trees, on which were scale insects 

 and other vermin, with a view to my getting them iden- 

 tified by the leading entomologists in this country. 



In this matter I was fortunate in obtaining the cordial 

 co-operation of J. W. DOUGLAS, F.E.S., he being a most 

 accomplished specialist in this branch of entomology ; 

 and another gentleman, Mr. Albert Morgan, of 

 Oporto, eagerly lent his valuable assistance from his 

 stores of entomological erudition. 



The results of their united researches, up to the pre- 

 sent time, are briefly stated in the following notes. 



The palm-scale, a pretty, though very destructive in- 

 sect, was identified as Cerataphis lataniae, an aphis, 

 common on palms in all countries, and often very 

 troublesome in hot-houses in England, upon orchids and 

 other plants. It is well figured in Buckton's "British 

 Aphides," Vol. IV., Plate 134. It is remarkable on 

 account of the waxen fringe which surrounds its margin. 



Another very remarkable insect, was Orthezia insignia 

 (Plate I., Fig. 1), upon some leaves and flowers of a 

 plant belonging to the Compositye. This insect first be- 



