A. C. OUDEMANS, NOTKS ON ACARI. 7)~ 



ally equal in size, yet legs 111 and IV may be thicker, 

 shorter, or longer than legs 1 and 11 ; legs 5-jointed ; leo-s 



I and II often with low or high crests ; atnbulacral caruncle 

 round and flat, almost sessile, or shortly pedunculate. Hypopi 

 subcutaneous, very elongate. Living on birds. Epimera 1 in 

 both sexes free. 



V Falculigerinae. 



Like Derinoahipliinae, but epimera I in d" joined to sternum ; 

 in + free. 



VI Syringobiinae. 



Like Derrnogli/phinae, but epimera I in both sexes united 

 to sternum. 



VII Analginae. 



Acaridae with rather flat and elongate body ; soft parts of 

 skin always wrinkled ; always with anterior dorsal, generallv 

 with other shields ; generally with a pair of vertical hairs ; 

 abdomen of cT often deeply cleft ; mandibles chelate ; maxillae 

 with 2-jointed palpi; legs 1, II and III ahvays marginal, legs 

 IV generally submarginal, especially in the d". Genu I and 



II always with dorsal backward directed ellbow ; tibia I 

 and II always with ventral triangular outgrow ; femur and 

 genu 1 and II generally united to femorogenu ; legs III, or 

 IV, or both ÌD the d longer and stronger and thicker than 

 legs 1 and II ; ambulacral caruncle round and flat, almost 

 sessile ; in the d" those of legs HI and IV much smaller, 

 even minute, rarely absent. Hypopi V Living on birds. 



VIII Eustathiinae. 



Acaridae with elongate body ; soft skin wrinkled ; ahvays 



