371 

 Tegeocranus lamellatus Banks. 



1906. Cepheus lamellatus, Banks, Proc. Acad. Nat. Sci. Phila., 1906, p. 4!)7. 



Very dark brown, almost black; integument .strengthened 

 with an irregular network of chitinous ridges. 



Cephalothorax short, broad. Lamellae very large, each 

 about half as broad as the cephalothorax and extending almost 

 the entire length of the latter; lamellae united in front by a 

 very short, broad translamella. Lamellar hairs stout, curved 

 strongly inward, about two thirds as long as the lamella'; inter- 

 lamellar hairs very short, almost straight, and approximate to 

 the lamellae. Pseudostigmata cup-shaped, projecting; pseudo- 

 stigmatic organ consisting of a stout, straight pedicel with a 

 small, oblong, pectinate head. 



Abdomen almost as broad as long, semicircularly rounded 

 behind. Dorsum with rather stout shoulder bristles and with 

 several other bristles at the posterior end. Genital covers 

 slightly smaller than the anal covers, and situated about half 

 their length from the latter; anal covers situated their length 

 from the posterior margin of the abdomen. 



Anterior pair of legs three fourths as long as the abdomen. 

 Tarsus of leg I one and a half times as long as the tibia. Tarsal 

 claws stout, sharp, and strongly curved. Legs sparsely clothed 

 with long straight bristles. 



Length, 0.76 mm.; breadth, 0.66 mm. 



In moss. Collected by the writer at Areola, 111. One 

 specimen. 



Genus Dam^us C. L. Koch. 



Mandibles chelate; legs slender, much longer than the 

 body, I and II approximate, as also III and IV; legs IV crawl- 

 ing organs; lamella? absent; cephalothorax and abdomen 

 clearly demarcated from each other. 



Two species: 



Pseudostigmatic organ simple, not pectinate sufflems. 



Pseudostigmatic organ pectinate nitens. 



