1907] 
EWIXG — XEW ORIHA TIDAE 
113 
The abdomen is about three-fifths as broad as long; the pteromoq)hae are 
attached to the anterior half of the lateral line; they are tnincate in front and extend 
a little beyond the anterior margin of abdomen. The abdomen is hairless. 
The legs are of moderate size, the femur being the large.st segment. Unguis 
tridactyle. 
I^ength, O.GO mm.; breadth, 0.42 mm. 
In moss. Collected by myself at River Fore.st, Illinois. few specimens. 
Oribafa ciirva n. sp. 
Figs. 5, 6. 
Dark brown; integument thick and resi.stant. 
Lamellae small and situated laterally; pseudostigmatic organ veri- long, almo.st 
twice as long as the tibia of leg I; recuned, with a long, narrow peduncle and a very- 
large, subglobose head. 
Cephalothorax with a pair of lateral hairs about half as long as the cephalo- 
thorax itself, curs'ed, and extending slightly beyond the tip of the ro.stnim. 
Abdomen subglobose with a few small hairs; pteromoqihae very large, almost 
as long as the abdomen, extending nearly to the tip of the ro.stnim and rounded in 
front. Anal covers slightly larger than the genital covers and situated about their 
length behind the latter. Ovipositor large, its proximal segment about as long as leg 
I. The ovipositor when extended is as long as the mite; the three subecpial di.stal 
forks are each about as long as the segment stalk from which they exteiul. 
I^gs rather small; tarsus of leg I longer than the tibia; tibia with an apical 
bristle about as long as the segment itself; femur of leg I .subglobo.se. Unguis tri- 
dactyle. 
Ixmgth, 0.40 mm.; breadth, 0.30 mm. 
Under old logs. Collected by myself at Eola .Junction, Illinois. A few speci- 
mens. 
Orihata mullipilom n. sj). 
Fig. 1. 
Light brown; integument of moderate thickness; surface slightly rough. 
Cephalothorax rather long; lamellae prominent, situated laterally, about one-half 
as long as the cephalothorax and ending each in a short cusp; translamclla a mere 
line. A pair of lateral lamellae is pre.sent also, these being very narrow and bearing 
