28 
Psyche 
[March 
Anteocular teeth developed and normally strong, acute 
or at least rectangular; head averaging broader, Cl 
79-97, only rarely less than 81 8. 
6. Lamellate margin of inner mandibular border narrow 
throughout, not or scarcely expanded near the apical 
teeth (Queensland) . mjobergi Forel 
Lamellate margin of inner mandibular border with 
a distinct, rounded, subapical expansion or flange . . 7. 
7. Size smaller, head length (hl) less than 1.30 mm.; 
pronotal teeth larger and blunter; anterior mesonotal 
tubercles well developed (New Caledonia) 
sarasini Emery 
Size larger, head length (hl) 1.30 or more; pronotal 
teeth smaller and more acute ; anterior mesonotal 
tubercles poorly developed (s. e. Australia; North I., 
N. Z.) antennatus Fr. Smith 
8. Dorsal surface of head smooth and shining, with 
minute punctures or small, spaced foveolae; dorsal 
surface of gaster with a fine but distinct, more or 
less reclinate, pubescence-like pilosity 9. 
Dorsal surface of head covered with coarse, crowded 
and often contiguous foveolae, the integument con- 
sequently subopaque to opaque ; dorsal surface of gaster 
with only an extremely fine and dilute, appressed, 
pubescence-like pilosity (workers more or less poly- 
morphic) 10. 
9. Dorsal surface of head smooth and shining, with only 
the most minute and inconspicuous of punctulae; post- 
petiole at least 1% times as broad as long, much broader 
anteriorly than behind (Figure 4) (s. Queensland) 
phyllobates Brown 
Dorsal surface of head smooth and shining, but sown 
with numerous circular, umbilicate foveolae (Figure 
3) ; postpetiole only slightly broader than long, with 
convex sides, not or scarcely broader in front than 
behind (e. New South Wales) 
(nigriventris Mercovich ms.) 
10. Inner mandibular borders approximately straight 
along basal 2/3; polymorphism of workers extending 
