TRACHEARI^. 221 



Atoma, Lat. 



Neither sucker nor palpi visible, the mouth merely consisting of 

 a small orifice on the chest. The body is oval and soft, the legs 

 very short(l). The 



OcYPETE, Leach, 



Belongs to this tribe by the number of legs; but, according to him, 

 these animals are furnished with mandibles(2). 



(1) Acarus parasiticus, De Geer, VII, vii, 7; — Trombidium parasiticum, Her- 

 mann. 



(2) Ocypde rubra. Leach, Lin. Trans., XI, 396. On the Tipulae. 



