2 I J. NEW YORK STATE ML"SEUM 



This species has received very little attention at the hands of economic 

 entonioloj^Msts, though our experience in this State would appear to show 

 that at times it may become very abundant and correspondingly injurious 

 to the plant. Professor Comstock records this insect as having been foimd 

 in great numbers by Dr Howard on orange trees in Louisiana and he 

 states that he has received it from Havana, from which place he thinks it 

 may possibly have been imported into this country. I'rof. T. I). A. 

 Cockerell has recorded the reception of this species on plants imported 

 from Iai)an, indicating that the insect has an extended distribution. 



A single parasite, Aphelinus fuscipennis How., has been 

 reared at the I'nited .States Department of Agriculture from this insect. 



Remedial measures. Experiments comlucted b)' L)r C. L. IMarlatt 

 against this insc-ct have demonstrated that the )oung coukl be killed with a 

 standard kerosene emulsion diluted with 9 parts of water, and that in order 

 to destroy the adults it was necessary to employ an emulsion of four times 

 that strength, or the standard emulsion diluted with but 2'^ parts of water. 

 He states that owing to the hatching period of this insect extending over a 

 number of weeks and the intermingling of broods later in the season, it is 

 difficult to control. 



Bibliography 



1881 Comstock, J. A. I'. S. Dop'i .\'^r\r. R<|i't iSSo. p. 313-14 



Scurfy scale 

 C/iifl)iasp/s fiir/iira Fitch 



A whitish, scurfy ap])earance on the trunks and limbs of certain trees may be due to 

 the [iresence of large numbers of this scale insect. The female scale is irregular, oval, 

 with a yellowish point and about '-',0 inch in lengih. The male scale is three ridged, 

 snow while, with a yellowish ])oint at one extremity. 



This exceedingly con^mon s]>ecies is of interest in this connection 

 largely on account of its occurring so abundantly on the Japanese quince. 

 It is sometimes ])resent in such large ninnbers that the bark is nearly 

 covered with ilirty white, scurflike j)a*ches and it is from this that the pop- 

 tilar name of the insect has been tlerived. 



