Macrothrix teuiiicornis. 



Fig. 



1. Lateral view, 

 la. Labrum. 



2. First foot. 



3. Antennae of young. 



4. Macrothrix pauper. 



Macrothrix rosea. 



5. Antenna of male. 



6. Spines of shell margins. 



7. Post- abdomen. 



Macrothrix laticornis. 



8. Male. 



9. Semen cells. 



10. Pasitliea rectirostris. Male antenna. 



11. Macrothrix rosea. Post-abdomen. 



12. " tenuicoriiis. Post abdomen. 



13. '' rosea. Post-abdomen of male. 

 34. Drepaiiothrix dentata. Antenna. 



Ilyocryptus sordidus. 



15. Marginal spines. 



16. Antenna. 



17. Post-abdomen. 



Ilyocryptus spiuifer. 



18. Lateral view. 

 18a. Marginal spines. 



19. Antenna. 



20. Macrothrix tenuicoruis. Heart and accompanying vessels, 



21. Ilyocryptus spiuifer. Post abdomen. 



