COCCIDAE FROM LOWER CALIFORNIA 65 



coccus eriogoni (Ehrh.), and Pseudococcus sequoiae (Coleman), were 

 taken only at Ensenada. The remaining 79 species are from the Cape 

 Region. 



Of these 79 species, ten are cosmopolitan or at least tropicopolitan 

 forms, the occurrence of which in this area is of no particular significance. 

 These are the following: 



Orthezia insignis (Douglas). 

 Pseudococcus filamentosus (Ckll.). 

 Pseudococcus virgatus (Ckll.). 

 Saissetia oleae (Bern.). 

 Saissetia nigra (Nietn.). 

 Chrysomphalus aurantii (Maskell). 

 Chrysomphalus aonidum (L.). 

 Lepidosaphes gloveri (Pack.). 

 Aspidiotus lataniae Sign. 

 Aspidiotus rapax (Comst.). 



One species, Aspidiotus spinosus Comst., has previously been re- 

 corded from greenhouses in eastern United States and in England, but is 

 of unknown origin. It is almost certainly introduced in Lower California 

 also. Three species are neotropical in origin, but are probably introduced 

 in this particular area. These are the following : 



Asterolecanium pustulans (Ckll.). 

 Ceroplastes cirripediformis Comst. 

 Pseudoparlatoria parlatorioides (Comst.). 



Six species, of which three are from oaks, are widely distributed 

 throughout the United States and doubtless northern Mexico as well, 

 these being the following : 



Eriococcus quercus ( Comst. ) . 

 Pseudococcus maritimus (Ehrh.). 

 Chionaspis pinifoliae (Fitch). 

 Chionaspis quercus Comst. 

 Aspidiotus diffinis Newst. 

 Aspidiotus osborni Ckll. and Newell. 



Twenty-four species I am identifying as forms that have previously 

 been recorded from southwestern United States or northern Mexico and 

 that are mere or less characteristic of that region. These are the fol- 

 lowing : 



I eery a rileyi Ckll. 



Steatococcus morrilli (Ckll.). 



