Mesostigmata 



121 



Genera and subgenera: 



1. Urodinychiis Berlese, 1903 



a. Urodinychus s. str. 



Type. Uropoda corinato Berlese, 1888 



b. Leiodinychus Berlese, 1917 



Type. Uropoda krameri G. and R. Canestrini, 1882 



c. Macrodinychus Berlese, 1917 



Type. Urodinychus parallelepipedus Berlese, 1916 



2. Calurodiscus Radford, 1950 (= Urodiscus Berlese, 1916, nom. prae- 



occ.) 

 Type. Urodiscus obesus Berlese, 1916 



'<^>r 



Figure 91 Urodinychus polyphemus Vitzthum, 1935. Dorsal (left) and ventral 

 (right) views of male. (After Vitzthum 1935) 



Discussion: This family is of no known economic or medical impor- 

 tance. 



Reference: 



Tragardh, L 1944. Zur Systematik der Uropodiden. Ent. Tidsk. 65:173- 

 186. 



Uropodidae Berlese, 1917 



Figure 92 



Diagnosis: The tritosternum is covered by coxae i. Grooves for the 

 legs are well developed. The marginal plate is fused anteriorly to the 

 dorsal plate, but the inner surface of the marginal plate is not scal- 

 loped. The plates appear to be mirror-smooth even when they are 

 more or less finely punctated. 



