NEW OH LITTLE-KNOWN ACARI. 



377 



Text-fisrure 15. 



Hightey del 



Pygmepliorus americanus, $ . 

 A. Dorsal view. B. Tarsus of first leg much enlarged. 



Pygmephorus spinosus Kramer. 



5 . The first tarsus is very characteristic in this species, being 

 much enlarged, the claw also very large and moving against a 

 strong process or spine. There are four striated sensory hairs 

 (the so-called olfactory hairs), a distal pair of fairly long cylin- 

 drical ones being placed close together (one of them is slightly 

 stouter than the other), and a proximal pair of very short rather 

 club-shaped ones. Second tarsus with a single sensory hair 

 dorsally, which is not very long but fairly stout, situated near 

 the proximal end of the segment. Pseudostigmata rounded at the 

 distal end. Hairs on body long and more distinctly feathered 

 than in P. tarsalis. 



Habitat, Talpa europaza ; England and the Continent, 



