﻿CRAWFORD, NOTES ON CALIFORNIA THYSANOPTERA 121 



except distal portion yellow ; tibiae black in the niitldle. 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 {Chrysoniphalus aurantii) had been 

 placed about three weeks before. This species was formerly placed in Crypto- 

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

 and finally to Leptothrips Hood. 



