Wheeler. — Ants of the Genus Opisthopsis. 



PLATE 3. 



Fig. 18. Opisthopsis maurus Wheeler, Worker. 



Fig. 19. Head of same. 



Fig. 20. Opisthopsis diadematus Wheeler. Worker. 



Fig. 21. Head of same. 



Fig. 22. Opisthopsis jocosus Wheeler. Worker major. 



Fig. 23. Head of same. 



Fig. 24. Head of worker minor of same. 



Fig. 25. Opisthopsis manni Wheeler. Worker. 



Fig. 26. Head of same. 



Fig. 27. Opisthopsis pidiis Emery. Thorax of worker. 



Fig. 28. Opisthopsis pictiis var. palliatus Wheeler. Thorax of worker. 



Fig. 29. Opisthopsis haddoni Emery. Proventriculus ("gizzard")- 



