CRAWFORD, NOTES ON CALIFORNIA THYSANOPTERA 121 



except distal portion yellow ; tibiae black in the middle, and yellow at both 

 ends. Abdomen is very stout. Color almost black. 



Leptothrips aspersus Hinds 



Several specimens of L. aspersus have been taken by the writer on the 

 foliage of orange trees ; one specimen was taken from a breeding cage in which 

 orange foliage, infested with yellow scale (Chrysomphalus aurantii) had been 

 placed about three weeks before. This species was formerly placed in Cr\pto- 

 thrips Uzel, by Hinds, but was later referred to the genus Phyllothrips Hood, 

 and finally to Leptothrips Hood. 



