36 REV. J, E. HULL ON 



each extremity. A little in front of it is another 

 similar but shorter lateral bristle. On the hind 

 margin of the dorsum there are six setae, very 

 short, with a stronger seta very little farther 

 forward on each side. All these setae are straight, 

 rigid, acute, and quite nude. 



The colour is a clear salmon-pink, A few specimens 

 were taken on the leaves of Saiiicula europcea in 

 September (West Allendale). 



67a. Tydaeus olivaceus, K. 67. 



Broad oval, quite smooth ; setas few simple. Greenish 

 with dark markings. 



West Allendale, moss in woods. 



68. Tydieus gra/iosus, Can. 



Lancashire (Southport — Dr. Chaster). 



G. — Sub-family Alichinae. 



Body somewhat quadrate, the dorsum very distinctly 

 divided into two or three parts, of which the anterior 

 is much the narrower and usually bears two pairs 

 of sensilli, the second pair seated in an Oribatoid 

 astheterium. 



Of the few genera I have seen only on^ — AIichns* 



ALICHUS, Koch. 



Mandibles stout with strong chela. Eyes 2. 

 Type : roseiis, Koch. 



69. Alichus roseus, Koch. 67. 



Clear crimson red behind where the dorsum is studded 

 with short plumose setae : in front darker, tinged 

 with purple. 



West Allendale, rare. 



* Since this was written Mr. S. Hirst has recorded (Journ. Zool. 

 Research, Nov., 1917) Nanorchestcs amphibiiis, T. & T., from the Isle of 

 Wight, and a new species N. podiiroides, Hirst (sub Spt'leorchesies, Trag., 

 which seems to me an unnecessary genus) from the Malvern Hills. 

 Nanorchestes differs from Alic/ius in being saltatory and having only one 

 tarsal claw. Alichus is 3-clawed. 



