46 (dr. a. 0. OUDEMANS). NEW LIST OF DUTCH ACARI , II. 



or less witli the three posterior dorsal shields of the nympha prima 

 (heteromorpha). 1 have given in Fig. Ill a sketch of the dorsal 

 side of the larva. Tiie anterior dorsal shield moreover shows beautiful 

 chitinous markings to the riglit and to the left. 



55. Uropoda ovalis Krana, 



My specimens are large, compared with the Italian ; they measure 

 up to 950 i". 



56. Uropoda krameri G. Can. 



The peritrema of this species does not run «ad corporis marginem 

 recte », as Berlese states, but, arrived at the margin, hends toward 

 the base of the Id leg. 



57. Cillibaena cassideus (Herrn.) 



All my specimens are larger than Berlese's. The nymphae difTer 

 from 784 to 833 /t. in length and from 770 to 784 ^i-. in width 

 The adult females are perfectly circulai', measuring 896 ^i. in the 

 two directions. 



58. Cillibaena minor Beri. 



Berlese calls this species : Dlscopoiiia ca-'isideiis var. minor. I don't 

 believe it a variety of Cillibaena cassidem Ì^A.'ìvkx).^ for the following 

 reasons : 



1. The shape of the body is oval, with the top forward, mesuring 

 420 ,w. in length and 329 i". width , consequently a proportion 

 of 60 to 47, whilst cassideus is perfectly circular. 



2 The dorsum is rather hairy , whereas cassideus has an almost 

 hairless skin. 



3, The margin has only hairs on great distances ; WvdA oï cassideus 

 is regularly provided with numerous minute curved hairs. 



