Ill 



moderately long. Hard to disting-nish from the pink sugar cane 

 mealy bug. The grey color, longer legs, less rounded and swollen 

 body are good characters." A comparison of Prof. Cockerell's 

 measurements of the legs of these two mealy bugs in the paper 

 cited above shows the very opposite, i. e. the middle legs of cal- 

 ceolariae are much the longer. The external characters of our 

 material agree more with those indicated by Maxwell-Lefroy, 

 and the measurements of the middle legs with the reverse of the 

 order given by Prof. Cockerell. ^Moreover, specimens of a 

 Psudococcus on sugar cane from Australia and ISTew Guinea in 

 the Board of Agriculture and Forestry collection substantially 

 agree in every respect with our F. calceolariae. Following are 

 measurements of middle legs as given by Prof. Cockerell and 

 found in material in the Board collection. The proximity of 

 these pointed to the affinities as indicated in the tables. 



Comparison of measurements, in micromillimeters, of middle 

 legs of P. calceolariae and P. sacchari : 



P. CALCEOLARIAE. 



P. SACCHARI. 



The inevitable conclusion from these figures is that the labels 

 on the slides studied bv Prof. Cockerell were reversed. In the 



