ACARINA FROM THE JUAN FERNANDEZ ISLANDS 



613 



downwards; tarsus with slightly constricted base, very slender and straight, of 

 even width throughout; ambulacres brooken off. 



Legs II (fig. 131); femur large, almost as wide as it is long, with ventral 

 posterior angle projecting as a strong tooth; calcar femoralis powerful, of al- 

 most even width throughout, with short tooth at the anterior edge near the top 

 and a thin triangular blade along the anterior edge; pilus axillaris straight, 

 sharply pointed, genu and tibia without any appendages; tibia ventrally, near 

 the anterior margin with a long, straight bristle; tarsus with two similar bristles 

 near the base, one ventrally, the other exteriorly; at the top there are two very 

 stout bristles and ventrally in front of the middle there is a third bristle. 



Figs. 134—137. Pachylcelaps hamifer n. sp. 



134. Top of maxilla; (hairs missing). 135. Maxillary palp (some hairs missing). 136. Epistome. 



137. Mandible. 



Loc: Juan Fernandez, Masatierra, Puerto Ingles, c. 400 m. a. s. Among 

 dry leaves in dense forest. Aug. 191 7, no. 790. 



23. Cosmolselaps communis n. sp. — Figs. 138 — 144. 



Female. 



Length 620 {t, width 380 |i. 



Colour light brown. 



Dorsal shield (fig. 138) with anterior margin well rounded, the sides in 

 front of the shoulders slightly concave, the sides very slightly convex, almost 

 paralell and the posterior margin obtuse. The cuticle has a rather faint but 

 especially in the posterior half quite distinct scaly or polygonal texture and is 

 generally more or less covered with dirt. There is only one pair of narrow 



