128 Annals Entomological Society of America [Vol. X, 



Joelia Oudemans, where the very large lamellae are joined 

 together in front at the median plane; however, in the case 

 of Joelia, this junction is not complete so that no roof-like 

 structure is formed. The genus Tegoribates, however, appears 

 to be more closely related to some of the other genera than 

 to Joelia Oudemans. 



Genus Neoribatula-^ n. gen. 



With the characters of the subfamily Oribatinae. Pteromorphae 

 very small, rudimentary, attached to the abdomen only, truncate in 

 front, not extending beyond the anterior margin of abdomen, and not 

 united by a transverse lamella. Cephalothorax not covered by a roof- 

 like projection. Lamellae attached to cephalothorax along most of their 

 inner margins. Translamella present. 



Type species: N. brevisetosa (Ewing). (See Fig. 3). 



Fig. 3. Neoribatula brevisetosa (Ewing). Dorsal view of cephalothorax and 

 anterior part of abdomen. 



This genus is related to Oribatodes Banks and to Oribatiila 

 Berlese^ but differs from both of these genera in having the 

 translamella present and well developed. 



Genus Heterodamaeus-'' n. gen. 



With the characters of the subfamily Damaeinae. Cephalothorax 

 separated from abdomen dorsally by a complete anterior border of 

 the latter. Tarsal claws all tridactyle. Pseudostigmatic organs not 

 foliaceous or flabellate. Dorsal integument smooth. Secojid pair of 

 legs shorter than others. Abdomen almost circular in outline, flat 

 above. 



Type species: Damaeus hicosticus Koch. 



^^From I'fos, new + Oribatiila. 



2SFrom i'repoi, other than usual, different + Damaeus. 



