Psyche, 1967 
Vol. 74, Plate 4 
* 
broad I g attached 
] -jointed petiole 
unconstricted 
g aster— 
reduced 
tripartite 
alltrunk 
extruslble 
sting 
* 
medium -length 
mandibles with 
serial li| arranged 
multiple teeth 
toasp-like 
antenna 
; 
PREVIOUSLY HYPOTHESIZED ANCESTOR 
SPHECOMYRMA 
