350 



luteguiiieut well chitinized; color lirown 5. 



5. Cephalothorax with lamella' 6. 



Ceplialothorax without lamelhe 12. 



6. Body smooth 7. 



Body rough 8. 



7. Last three pairs of legs situated under the body . . Liacarus. 

 Last three pairs of legs situated at the sides of the 



body NoTASPis. 



8. No demarcation l)etween the cephalothorax and ab- 



domen SCUTOVERTEX. 



Cephalothorax and abdomen plainly divided 9. 



9. Ungues monodactyle; femora I and II pedunculate 10. 



Ungues tridactyle 11. 



10. Lamella:' large, blade-like Tegeocranus. 



Lamella? merely low chitinons ridges Carabodes. 



11. Femur I pedunculate Chaunoproctus. 



Femur I not pedunculate .*.... Cei-heus. 



12. Legs slender, longer than body, segments pedunculate. . 13. 

 Legs short and stout 14. 



13. Cephalothorax and abdomen coalescing at the median 



plane Amerus. 



Cephalothorax and abdomen plainly divided Dam^us. 



14. Ungues monodactyle; dorsum of abdomen convex 15. 



Ungues tridactyle 16. 



15. Genital and anal covers separate; situated in the ventral 



plate Hermannia. 



Cenital and anal covers contiguous; no ventral plate pres- 

 ent LOHMANNIA. 



16. Dorsum of abdomen convex 17. 



Dorsum of al)domen Hat or concave 18. 



17. Al)domen with concentric rings on the dorsum; ventral 



plate present Neoliodes. 



Abdomen without concentric rings on the dorsum; ventral 

 plate absent Tumidalvus. 



18. Body elliptical; leg II with tectopedia Cymb^erem^eus. 



Body rectangular; leg 11 without tectopedia Nothrus. 



