PLATE C. 



Fig. 1. Macroihrix tenuicornis^ la. labrum. 



Fig. 2. do., first foot. 



Fig. 3. do., antennye of young. 



Fig. 4. Macrothrix paui)er. 



Fig. 5. Macrothrix rosea^ antenna of male. 



Fig. 6. do., spines of shell-margins. 



Fig. 7. do., post-abdomen. 



Fig. 8. Macrothrix laticornis^ male. 



Fig. 9. do., semen cells. 



Fig. 10. Pasithea rectirostris, male antenna. 



Fig. 11. Macrothrix rnsea^ post-abdomen. 



Fig. 12. Macrothrix fenuicornis^ '' 



Fig. 13. Macrothrix rosea^ post-abdomen of male. 



Fig. 14. Drepanothrix dentata, antenna. 



Fig. 15. llyocrijptuis sordidiis, marginal spines. 



Fig. 16. do., antenna. 



Fig. 17. do., post-abdomen. 



Fig. 18. IJyocrijptus spinifer, 18a. marginal spines. 



Fig. 19. do., antenna. 



Fig. 20. Macrothrix teniiicornis^ heart and accompanying vessels?, 



Fig. 21. Ilyocryptus spini/er, post-abdomen. 



