70 À. e. OUDEMANS, NOTES OX ACARI. 



XI. Epidermocoptinae. 



1. 

 2. 



3. 

 4. 



Legs in d* and 2 almost equal in size 2 



This is not the case 4 



Tarsi end claw-like 1 Epidermocoptes Riv. 



Tarsi do not end claw-like . 3 



(T abdomen bilobous 2 Rivoltasia Can. 



cT abdomen not lobed . . 3 Dermatophagoides Bogd. 

 Penis long, filiform ... 4 Microlichits Trt. Neum. 

 Penis short, conical ... 5 Dermatiùm Trt. Neum. 



XII. Psoroptinae. 



iAmbulacral caruncles on long articulate peduncles, with 

 minute claw. 1 Psoroptes Gerv. 

 Caruncle on inarticulate peduncle, without claw . 2 

 $ with ambulacral caruncle on legs I, II and IV 

 2. •! 2 Choriocoptes Gerv. 



' 2 with ambulacral caruncle on legs I and II. . . 3 



d" abdomen bilobous 3 Caparinia Can. 



d" abdomen scarcely excavate ... 4 Otodectes Can. 



XIII. Psoralginae. 



One genus only 1 Psoralges Trt. 



XIV. Heteropsorinae. 



One genus only. ... 1. Heteropsorus Trt. Neum. 



XV. Laminocoptinae. 



One genus only 1 Laminocoptes Mégn. 



XVI. Cytodytinae. 



One genus only 1 Cytodytes Mégn. 



3. 



