349 



do it." The same person would easily understand that we 

 couldn't send him a hoe that would cultivate without any effort on 

 his part, the trees. A better understanding is sought. We are 

 not an agricultural college, and cannot give a course in economic 

 entomology, but in so far as our investiagtions have progressed, 

 we are ready to give those in need the entire benefit of them. , 



LIST OF INJURIOUS HORTICULTURAL INSFXTS IX HAWAII: 

 CITRUS. 



(Orange, lemon, lime, grape-fruit, etc.) 

 The Japanese Beetle, Adoretus uiiibrosiis Fab. var. tcmiitnacu- 

 latiis Waterh. 



Fuller's Rose Beetle, Aramigtts ftiUeri Horn. 

 The Torpedo-Bug, Siphanta acuta Walker. 

 The Orange Aphis, (undetermined). 

 Scale-Insects (Coccidae) : 



The Purple Scale, Lepidosaphes bcckii Newn. 



The Florida Red-Scale, Chrysomphaliis aoiiiduni Linn. 



The California Red-Scale, Chrysomphaliis aumntii Mask. 



Mealy-Bug, Pseudococcus filamentosns Ckll. 



Pulvinaria psidii Mask. 



The Fluted Scale, Icerya piirchasi Mask. 



Several other scale insects are recorded but are not common. 



AX'OCADO. 



The Avocado Mealy-Bug, Pseudococcus nipae Mask. 

 Fioriuia fioriiiiac Targ. (Scale-insect). 

 Phenacaspis eiigeniae Mask. (Scale-insect). 

 A Bark Beetle, Xylehoriis imuiaturus Blackburn. 



PINEAPPLE. 



The Pineapple Scale, Diaspis bromeliae Kerner. 

 The Pineapple Mealy-Bug, Pseudococcus sp. 



I 



MANGO. 



The Mango Weevil, Cryptorhynchus mangiferae Fabr. 

 The Torpedo-Bug, Siphanta acuta, Walker. 

 Lepidopterous larva, (undetermined). 



