COCCIDAE FROM LOWER CALIFORNIA 77 



deep and distinctly asymmetrical, the others larger and with the cup 

 broad and shallow. Anal ring with eight setae, these about half as long 

 as the anal lobe setae. 



Notes : The only described species known to me that at all approaches this 

 is E. inermis Green, from grass in England. The two are very similar in the 

 absence of spines but differ in that E. inermis bears stout spines instead of 

 slender setae on the anal lobes. 



Eriococcus palmeri Ckll. 



Two specimens were taken from Ruellia sp. at Todos Santos which 

 Mr. Morrison considers possibly to be nearest E. palmeri Ckll. In view 

 of the scanty material they may be placed with this species for the present. 

 It has previously been recorded from Bourreria sonorae on Carmen 

 Island in the Gulf of California. 



Eriococcus quercus (Comst.). 



1920. Eriococcus quercus (Comst.); Ferris: "Scale Insects' of the Santa Cruz 

 Peninsula," Stanford University Publications, Biological Sciences, 1:1:19, 

 fig. 6. 



Previous records. Widely distributed throughout the United States 

 on various species of Quercus, ranging across the continent. 



Lower California records. From Quercus brandegeei, between La 

 Rivera and Santiago. 



Notes : But a single example of this species was obtained, this agreeing 

 quite closely with examples from Quercus agrifolia in California. 



Eriococcus stanfordianus Ferris. 



1920. Eriococcus stanfordianus, Ferris: "Scale Insects of the Santa Cruz Penin- 

 sula," Stanford University Publications, Biological Sciences, 1 :1 :21, fig. 7. 



Previous records. Known only from the vicinity of Stanford Uni- 

 versity, California, from unknown host. 



Lower California records. From Cassia sp. at Todos Santos ; 

 Mimosa sp. at San Pedro ; feral domestic cotton at San Jose del Cabo. 



Notes : It is only with much hesitation that I refer all these specimens to 

 this species. The specimens from Cassia agree very closely with the type, except 

 for the presence of a very few small spines on the dorsum of the abdomen in 

 addition to the large spines. Those from Mimosa likewise agree quite closely 

 except that the spines are noticeably shorter and stouter than in the type. The 

 specimens from cotton differ most widely, there being many smaller spines on 

 the dorsum which at times approach the larger spines in size. Specimens from 

 this latter lot have been compared by Mr. Morrison with the Eriococcus material 

 in the National Collection and he informs me that he cannot connect these with 

 any species in the collection. It may be noted that these approach E. toutneyi Ckll. 

 (E. quercus var. toumeyi Ckll.) in spine characters. 



