INSECTS INFESTING THE CONSERVATORY. 



CHAP. 



The Common Mealy-bn<j .^Dftcft/Jopius ado- 

 niduin) 174 



The Destructive Mealy-bug {Dactylopiua 

 dextnictor) 175 



CHAP. 



The Mealy-bug- with Ions threads (Dacljilo- 



pius lonnifilU) 176 



Slugs or Snails 177 



CHAPTER CLXXIV. 



The Common Mealy-bug. (Cal.) 



(Dactt/hipios acloiiidiim. — Liniijieus.) 



Order, Hemiptera ; 

 Sub-order, Homoptera ; 



Family, Coccid.e. 



Fig. 247. 



[Living upon various kinds of green-house plants and orange 

 trees ; a small scale-like insect, more or less covered with a 

 whitish, mealy powder.] 



Fig. 247. — Female Mealy-bug, enlarged — 

 color, yellowish-white. 



This species is commonly termed the 

 mealy bug, as if there was only one spe- 

 cies. It is sometimes very troublesome in 

 hot-houses, conservatories, and also to some 

 kinds of garden plants. I have also received 

 specimens of oranges wliich were infested 

 by this, or a closely allied species. The 

 female (Fig. 247) measures from one line and a quarter to a 

 line and a half in length ; is of a whitish or 3'ellowish color, 

 with a brown band on tlie middle of the l)ack, and is covered 

 with a mealy powder whicli is excreted through pores situ 

 ated on \;irious parts of the l)ody. In addition to this there 



