644 



Pomona College Journal of Entomology 



shown in tlie small figure. Legs short and of moderate size. Tarsus tapers at 

 the tip. Two specimens, under boards, Claremont, Cal. 



This form differs from O. alata (Herm.) by the longer peduncle of the 

 pseudostigmatic organ. In this respect it is more like 0. dorsalis (Koch) which 

 as Michael suggests may be a variety of 0. alata. 0. dorsalis has not been 

 reported from America and it might be well to consider it and my specimens as 

 varieties of O. alata. My specimens differ sharjjlj' from the figure of O. dorsalis 

 given by Michael in his article on the Oribatidie in "Das Terreich," 1898, by 

 having no line across the dorsum between cephalothorax and abdomen. 



Figure 213. Oribata alata, var. californica 



