■22 Psyche [February 



This past summer, however, the secret of its habitation was dis- 

 covered by Miss Cora H. Clarke of Boston, who made an interesting 

 collection of Juncus galls near Magnolia Village, Mass., on August 

 17, which she shared with the writer. At this date the galls con- 

 tained only unknown nymphs of a Psyllid but they were about 

 ready to wing and the adults began to emerge in large numbers on 

 August 20-21. These proved to be Livia maculi/pennis Fitch. 



The accompanying photograph gives the enlarged abnormal 

 growth of the galled-specimen in contrast to the normal rush, and 

 makes a description unnecessary. 



Did Fitch, nearly sixty years ago, pick a stem of rush with its 

 monstrous tassel deserted by its colony and wonder "What did 

 that.'*" while the little "spotted wings" were flitting about the 

 marsh or resting perchance upon sweet-flag near by? 



THE COCCID.E OF NEW JERSEY GREENHOUSES. 



By Harry B. Weiss, 

 New Brunswick, New Jersey. 



While greenhouse coccids are not strictly a part of the New 

 Jersey fauna, yet many of them are more or less permanently 

 established and are a constant source of annoyance and expense to 

 various growers. Except for the "mealy bugs" and a few species 

 of "soft" and "armored scales," many of them are diflicult to 

 control and most of the insecticides recommended for greenhouse 

 use are ineffective. Many of them will kill larvae but here their 

 usefulness ends. Many have been recommended by hearsay, on 

 the basis of too little investigation, or after experimentation of a 

 meager kind which neglected to include atmospheric conditions 

 and other factors of a more or less variable nature which have an 

 important bearing on the success or failure of the material. 



As a result, the most effective work in combating scale insects 

 in greenhouses is done when the plants are overhauled and repotted. 

 At this time badly infested plants are destroyed, infested leaves 

 pulled off, and men and girls are placed at work scrubbing the 

 leaves with tooth brushes, erasers and soft cloths or using pointed 

 sticks to dislodge the scales in cracks and crevices. In other words, 



