100 Psyche [Sept.-Dee. 
EXPLANATION OF PLATES 
Plate II 
Showing the petioles from above of a representative series of Pseudomyrma. 
1. excavata 
2. tenuis 
3. nigropilosa 
4. gracilis 
5. denticollis 
6. sabanica 
7. elegans 
8. championi 
9. dolichopsis 
10. kuenckeli 
11. acanthobia 
12. brunnea var . nigrita 
13. decipiens 
14. filiformis 
15. oculata 
16. sericea 
17. belti bequeerti 
18. canes cens 
19. arboris-sanctce 
20. bradleyi 
21. caroli 
22. crenulata 
Plate III 
Petioles in profile of a representative series of forms of Pseudomyrma. 
1. excavata 
2. tenuis 
3. tenuissima 
4. championi 
5. denticollis 
6. sabanica 
7. spinicola 
8. dolichopsis 
9. sericea acaciorum 
10. wessoni 
11. sericea type 
12. elongata 
13. acanthobia deliculata 
14. nigrocincta 
15. flavidula 
16. weberi 
17. colei 
18. filiformis 
19. latinoda 
20. arboris-sanctce 
21. picta humboldi 
22. canescens 
23. belti 
Plate IV 
Color patterns in Pseudomyrma gracilis (figs. 26-30) ; pedicels in profile 
(figs. 31-35) ; outline drawings of two newly described forms (figs. 24, 25). 
24. acanthobia deliculata var. limai 
25. wessoni var. tuberculata 
26. gracilis subsp. sericata 
27. gracilis subsp. carapuna 
28. gracilis var. peruviana 
29. gracilis subsp. mexicana 
30. gracilis var. dimitiata 
31. gracilis var. peruviana 
32. gracilis var. squamifera 
33. gracilis var. mexicana 
34. gracilis var. maculata 
35. gracilis type 
