December, '14] RUST: NOTES ON COCCID/E FOUND IN PERU 469 



males are very numerous and their snowy puparia usually so cover the 

 rose twigs as to make the latter appear as if white-washed. 



This office has many notes on the collection of A. rosoe, among which are the fol- 

 lowing: on rose, Lima; on rose, Piura. 



Ceroplastes sp. (near ceriferus) 

 Owing to the small number of specimens of this coccid and to a lack 

 of literature describing the species of this genus, the writer cannot be 

 positive of their, specific determination, but the specimens in the 

 government collection so closely agree with the description of C. 

 ceriferus in "The Coccidae of Ceylon" by E. E. Green, that they may 

 be regarded as belonging to this species until proven something else. 

 Moreover, C. ceriferus has been reported from Chili, Mexico, Antigua 

 and Jamaica, in all of which exist climatic and other conditions very 

 similar to those in the section of Peru where these specimens were 

 found, so it is not surprising to find the aforesaid species present in this 

 country as well. 



Collected only at Huancabamba, on a thorny bush thought to be a species of 

 Mimosa. 



Chrysomphalus n. sp.? (near rossi) 

 Differs from available published descriptions of C. rossi in the pres- 

 ence of paraphyses, in having fewer circumgenital pores and in that 

 the plates are broader, blunter and not so long and slender, and are 

 less serrated. 



On Araucaria excelsa, Lima; Ai-aucaria hidwilli, Lima. 



Coccus hesperidum Linn. 

 C. hesperidum is found attacking a large variety of hosts very gen- 

 erally throughout the Republic, but so thoroughly is it held in check 

 by its numerous microhj^menopterous parasites that it very seldom 

 does appreciable damage and even in such isolated cases destruction 

 by artificial means scarcelj^ seems necessary. 



Collected as follows: on a variety of Dianihus chinensis, Samdn (Department of 

 Piura); Mangifera indica, Coscomba (Department of Piura); Cordyline terminalis, 

 Lima; Datura arborcscens, Saman, (Department of Piura); Ficiis nilida, Matucana; 

 orange, Coscomba (Department of Piura). 



Diaspis hoisduvalii Sign. 



It has often been noted by the writer that this coccid seems to 

 have a decided preference for monocotyledonous plants and is especially 

 troublesome on palms, often killing young plants. It is a very common 

 scale in this country, being widely distributed and thriving out-of- 

 doors in perfect vigor. 



Recorded from this Republic on: Cocas corovata, Lima; Areca nohilis, Piura; 

 Areca nohilis and Pandanus utilis, Lima. 



