10 (uu. A. C. OUDKMANS). 1SOTJ5S ON ACARI VI. 



I Mouth organs distinctly visible 

 IVom the dorsal aspect . .12 

 Ì Mouth organs hidden by a doisal 

 hood 14 



cf Epimera 2 not joined to the 



sternum TrichotarsilS Can. 



cf Epimera 1 and 2 ioined to 



(the sternum and to each 

 other, forming a continuous 

 skeleton 18 



TNo genital suckers in either sex Hericia Can. 

 13. {Genital suckers present in both 



i sexes. ; Carpoglyphus Robin. 



cf genital aperture between 



epimera 3 and 4 . . . . Fusacarus Michael. 



14 <f 



](ƒ genital aperture in Iront ot 



epimera 1 Chortoglyphus Beri. 



S Demarcation between Cephth. 

 and Abd 16 

 No demarcation between Cephth. 

 ( and Abd 17 



S Demarcation on the usual 

 place; hairs on notogaster 

 feathery or leaf-like , . . Glycyborus Oudms. 

 1 Demarcation for forward ; Cepth, 

 I very small ; hairs on noto- 



^ gaster spinous Labidophorus Kram. 



5 Epimera 1 joined together ; 

 copulation-tube conspicuous, 



17. ' marginal Glycyphagus Hering. 



I ? Epimera 1 separate; copulation 

 [ tube inconspicuous^ dorsal . Dermacarus llallei'. 

 Histiostomue . 



Only one genus Anoetus Uuj. 



Lentuugulae. 

 Only one genus ....... Lentungula Michael, 



