A. C. OUÜEMANS, NOTRS OX ACARI. 67 



V. Falculigerinae. 



d' legs III thick; legs IV small; ^ epigynium horse-shoe 



shaped 1. Bdellorrhynchus Trt. 



cT legs III and IV equal in size and shape ... 2 

 d* legs III and IV slender; ç without epigynium . 3 

 cT legs III and IV thick ; 9 with crescent-shaped epigynium 



2. Protolichus Trt. 

 Heteromorpbous cT with 2-jointed palps 3. Falculiger Raill. 

 Heteromorphous d" with 1-jointed palps 4. Chiloceras Trt. 



VI Syringobiinae. 



Legs III and IV marginal 2 



Legs III and IV subraedial 8 



d* legs III not enormously developed 3 



d" legs III enormously developed . 7 Pteronijssus Rob. 

 Ambulacral caruncles round; d" legs I normal . . 4 

 Arabulacral caruncles bilobous; d* legs I enormously 



developed 6. Oustahtia Trt. 



cT legs III thick ; ç with median conical prolongation 



1. Columellaia Oudms. 

 1 d" legs III normal or thick; 9 without median conical 



prolongation 5 



I d* legs III and IV almost equal in size and shape . 6 

 d" legs IV longer and thicker than legs III 



5 Syringobia Trt. Mégn. 



' AU the legs slender 7 



I All the legs short; their joints as long as wide 

 I 4 Sammonica Oudms. 



I d* abdomen with deep median incision 2 Thecarthra Trt. 

 j cT abdomen almost rounded ... 3 Plutarchia Oudms. 



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