PLATE II. 



Fig. 1.* IULUS IMMACULATUS. 



2. Iulus Pennsylvanicus. This dgure is scarcely hairy enough, 



and not sufficiently acutely mueronate. 



3. IULUS VENUSTl'S. 



3 a. Head of the Male of same. 

 3 b. Head of the Female. 



4. Iulus Canadensis. 



5. Iulus canaliculars. 



6. Brachycybe Le Contii. 



7. Polydesmus Canadensis. 



8. polydesmus uuanula ! i's. 



9. polydesmus serratus. 



10. polydesmus setiger. 



11. 11 a. Spirostrephon lactarius. 



12. Iulus pilosiscuta. (This figure is not good, the hairs instead of 



being merely indicated should be prominent.) 



13. Iulus virgatus. 



14. Spirostrephon o&sioannulatus. 



15,16. Iulus lacjueatus. (Fig. 15 is the better.) 

 17, 17 a. Oligaspis puncticeps. (Natural size.) 



* All the figures on this plate are magnified. 



