VI MISCELLANEOUS RESULTS OF WORK OF BUREAU — IX. 



Part VI considers the greenhouse thrips (Heliothrips hsemor- 

 rhoidalis Bouche), a species previously recorded as injurious to 

 a number of hothouse plants. This insect was found injuring mango, 

 crotons, and other plants on beds and in parks at Miami, Fla. The 

 results of a series of experiments for its control are given in this 

 number. 



Part VII is largely supplemental to an article in Bulletin No. 8 

 of the Division of Entomology, giving a note on new food materials 

 for the coffee-bean weevil (Ar secerns fasciculatus DeG.). This 

 insect was discovered working in chinaberries and cornstalks adja- 

 cent to cotton fields during an investigation of cotton insects. 



A new and dangerous species of Aleyrodes attacking citrus fruits 

 is the subject of Part VIII. This species (Aleyrodes liowardi Quaint.), 

 which occurs on several islands of the West Indies, including Cuba 

 and Porto Rico, has recently made its appearance in Florida. Present 

 indications are that this species will be controllable by the same 

 measures used for the citrus white fly, which it much resembles in 

 capacity for damage. 



Part IX gives the results of experiments undertaken for the con- 

 trol of a species of ant (Formica cinereorufibarbis Forel), which fosters 

 the melon aphis in Colorado, protecting it largely from predaceous 

 enemies. The control of this ant may prove of great value as a 

 measure against the melon aphis. 



Part X is a biologic account of a minor pecan pest, the pecan cigar 

 casebearer in the South, and includes suggestions for its control. 



