368 



cephalothorax, slightly curved, pectinate; tran.slamella a 

 straight cross-bar; pseudostiginata cup-shaped; pseudostig- 

 raatic organ with a small short peduncle and a large pyriforni 

 head; interlaniellar hairs of medium length, straight, and 

 pectinate. 



Abdomen almond-shaped, hairless; anal covers contiguous 

 to the posterior margin of the abdomen; genital covers two 

 thirds as long as the anal covers, and situated aljout three 

 times their length in front of them. 



Hind pair of legs longest, but not reaching to the po.sterior 

 margin of the abdomen; the other pairs subequal. 



Length. 0.42 mm.; breadth. 0.20 mm. 



Collected by the writer at Areola. 111. Many specimens. 



X(i/iispis si)iit/pf)< 15anks. 



l!Kl(i. (ijijild s/iliiljirs, Banks, Prot'. At'ad. Nat. Sd. Phila., Nov., 190(1, p. 4it6, 

 ri. XVII., Fig. 22. 



Chestnut bi-own; surface of integument smooth. 



Cephalotht)rax vei'y long and narrow, almost as long as the 

 abdomen; lamelhe very long, narrow, their blades extending 

 the entire length of the cephalothorax; lamellar cusps prom- 

 inent, pectinate, straight, and short; pseudostigmatic organ 

 long, straight, and pectinate; interlaniellar hairs straight, pec- 

 tinate, pointing almost directly forward; I'ostral hairs small, 

 sim[)le, and curved. 



Abdomen circular, with two pairs of large, straight, pec- 

 tinate spines on the dorsal margin; anal covers about the same 

 size as the genital covers and contiguous to the posterior mar- 

 gin of the abdomen. 



Legs subetjual, with several stout, curved, plumose l)ristles; 

 tactile hairs on the til)ia:' of the Hrst two pairs about twice as 

 long as the segments themselves. 



Length. 0.56 mm.; breadth. 0.34 mm. 



In moss. The author has collected specimens at Areola, 

 111. The determination has been contiruied l)y the original 

 descril)er of the species. 



