Oribatei 



417 



Liacaridae Willmann, 1931 



Figures 349, 350 



Diagnosis: Lateral and posterior margins of the hysterosoma are not 

 bent ventrally. Legs in and iv are located ventrally, usually far re- 

 moved from th^ lateral margins. 



Figure 349 Cultroribula divergens 

 Jacot. Dorsum of female. 



Genera: 



Figure 350 Liacarus coracinus (Koch). 

 Venter of female showing coxal at- 

 tachments. 



1. Liacarus Michael, 1898 (= Leiosoma Nicolet, 1855, nom. praeocc.) 

 Type. Oribata nitens Gervais, 1844 



2. Adoristes Hull, 1916 



Type. Oribates ovatus Koch, 1840 



3. AstegistesYhiW, 1916 (= Cultrozetes Sellnick, 1922) 



Type. Acarus muscorum Scopoli, 1763 (= Zetes pilosus Koch, 1840) 



4. Cultroribula Berlese, 1908 



Type. Notaspis juncta Michael, 1885 



Discussion: Three species belonging to this family are known to be 

 vectors of various tapeworms. Liacarus coracinus (Koch) is the inter- 

 mediate host of Cittotaenia ctenoides and C. denticulata in Germany; 

 Adoristes ovatus (Koch) is the intermediate host of a Moniezia sp. in 

 Russia; and a Liacarus sp. is the intermediate host of Anoplocephala 

 perfoliata in Russia. 



