112 
PSYCHE 
[December 
Orihaia clai'ilanceolala n. sp. 
Figs. 9, 10, 11. 
Light brown; integument thin and Irrittle, slightly pitted around the margin of 
the abdomen. 
Cephalothorax about one-half as long as the abdomen; lamellae long and nar- 
row, three-fourths as long as the cephalothorax; no translamellae; a pair of small 
lateral lamellae extend two-thirds the distance to the tip of the rostrum, each 
lamella ending in a long curved bristk* pscudostigmatic organ with a long, recurved 
jreduncle and an enlarged head, which tapers to a fine point ; interlamellar hairs erect ; 
palpi prominent. 
Abdomen about two-thirds as broad as long; pteromorphae truncate, not extend- 
ing beyond the anterior margin of the abdomen, but e.xtcnding backward to about 
the middle of the abdomen. Abdomen hairless; anal covers large and situated about 
one-half their length from the po.sterior margin of the abdomen; genital covers about 
one-half as long as the anal covers, and situated about twice their length in front of 
the same. 
Anterior pair of legs almost as long as the abdomen, the femur being the largest 
segment ; tibia of leg I slightly longer than the tarsus. The legs bear a few, large, 
curved, dentate bristles. Unguis tridactylc. 
Length, 0.70 mm.; breadth, 0.35 mm. 
Under stones. Collected by myself at Batavia, Illinois. Many specimens. 
Oribala davipcciinaia n. sp. 
Fig. 14. 
Brown; integument of medium thickness, surface somewhat rough. 
Cephalothorax about one-half as long as the abdomen; lamellae without cusps 
and two-thirds as long as the cephalothorax and of about the same width throughout 
their length; no tran.slamellae; lamellar hairs slightly pectinate and as long as the 
lamellae themselves; interlamellar hairs two-thirds as long as the lamellar hairs and 
directed away from the median plane; lateral lamellae small, narrow, each bearing 
a long, curved bri.stle, as long as the lamellae themselves. The p.seudostigmatic 
organ is about as long as the lamellae, is recairved and has a moderately long peduncle 
and a long, clavate, pectinate head. 
