ACARINA FROM THE JUAN FERNANDEZ ISLANDS 



615 



teriorly widening to almost twice the width between coxae IV, with rounded 

 posterior margin. One pair of hairs, inserted a little in front of posterior margin 

 of coxae IV, marginally. 



Round the posterior margin there are two pairs of pointed hairs. 



Anal shield pearshaped, with three hairs; round the anterior half of the 

 shield 3 pairs of pointed hairs. Half-way between the posterior pair and the 

 lateral margin there is one pair of leaf-shaped hairs, and on a level with the 

 postanal hair there is another pair of similar shape, all the other ventral hairs 

 being narrow and pointed. 



Legs with fairly distinct scaly texture, at least on femora and tibiae. 



Legs I (fig. 142) with very short femur with two straight, stout ventral 

 bristles on low wart-like projections; genu slightly longer than femur, with one 



Figs. 141 — 144. Cosmolcelaps communis n. sp. 9 



141. Mandible. 142. Leg I. 143. Leg IL 144. Leg IV (Leg I drawn on a larger scale than 



II and IV). • 



similar ventral bristle, and subventrally, on the exterior side, one perpendicular 

 tactile hair; tibia slightly longer than genu, with one ventral, stout bristle a 

 little before the middle and further back one perpendicular tactile hair; tarsus 

 straight, twice as long as femur. 



Legs II (fig. 143) stout, with short femur, genu and tibia; femur ventrally 

 with two stronger bristles, the posterior one pointing obliquely backwards, the 

 anterior one forwards, genu and tibia with one strong ventral bristle. 



Legs IV (fig. 144); femur in the distal half with two dorsal, leafshaped 

 hairs, ventrally with two bristles, genu with one, tibia with two ventral bristles. 



Mouthparts. I have not been able to dissect the epistome, which 

 must be exceedingly hyalin and difficult to see. Mandible (fig. 141) with 

 narrow chela; lower jaw with three teeth of almost equal size; upper jaw shorter 

 than lower one, with three teeth diminishing in size backwards, pilus dentarius 

 between terminal and subterminal tooth. 



The shape of the hypostome I have not been able to see distinctly. 



