52 ENTOMOLOGICAL NEWS. [February, 



Host plants of Aleurodes pergandei (juaint. 



The present paper will be devoted to the host plants of one 

 the prettiest of these little insects : Aleurodes pergandei Quaint. 

 The pupal form alone will be considered. 



The plants will be considered in the systematic botanic order 

 of Gray. 



RUTACE^E. 



NORTHERN PRICKLY ASH. 



Xanthoxylum americamim. 



Specimens found on under side of leaves, August 23, 1900, 

 about one-half mile east of Urbana and noticed quite often 

 north and east of Urbana until the last of September, when 

 the writer went to Pekin for a month. They were always 

 scarce, never more than three upon one leaf. 



ROSACES. 



CULTIVATED PLUM. 



Primus sp.* 



One specimen was found in Champaign, 111., as early as 

 August 13, 1900, and on September 12, 1900, several speci- 

 mens w r ere taken from two trees at the University grounds. 

 The} r w^ere not abundant. 



CULTIVATED DWARF PLUMS. 



Prunus sp. 



Few collected September 12, 1900, from plant at the Experi- 

 ment Station ground in Urbana. 



FLOWERING ALMOND. 



Primus Amydalus nana. 



On September 20, 1900, after a few 7 minutes' careful search, 

 a few specimens were found in Mt. Hope Cemetery south of 

 Urbana. 



PEACH. 

 Prunus (Amyydalus) persica. 



From the i st of August until the last of September speci- 

 mens could be found upon nearly every peach tree about Cham- 

 paign and Urbana, but apparently only upon the lower and 

 more shaded leaves. They were scarce, never more than 

 twelve being found upon a single tree. 



* See p. 32 of Prof. A. L. Quaintance's paper for additional localities. 



