Figures 10-11, Simopelta oculata n.sp., heads in dorsal view. Fig. 10, 
worker. Fig. 11, Queen. Drawn to same scale. 
lively longer than in williamsi; pronotum with a feeble median im- 
pression on its dorsal face; propodeum with a feeble impression about 
midway on its dorsal face as seen in profile from the side. 
5. Petiolar node longer, scarcely higher than long; as seen from 
above trapezoidal, slightly wider behind than long. 
6. Transversely costulate elements of sculpture looser and less 
extensive than in williamsi especially on head, where they are only 
weakly indicated on the extreme occiput, and then only in certain 
lights. Head otherwise densely reticulate-punctulate, opaque. An- 
terior face of pronotum with fine indistinct striation continuing onto 
lateral faces; disc and lateral faces of pronotum also with numerous 
shallow punctures; dorsum of alitrunk indistinctly roughened, al- 
most smooth in places, weakly shining; anterior propodeum with 
some loose transverse rugulae extending up from sides; posterior sides 
of alitrunk with loose oblique to longitudinal rugulation, also a few 
oblique rugules on sides of petiolar node; petiolar summit loosely 
rugulose, weakly shining. Gaster smooth and shining, with very fine, 
superficial reticulation on dorsum, as in williamsi. 
7. Color dark brown, head brownish-black; mandibles, antennae, 
legs, sides of pronotum, lower petiolar node, and gaster prevailingly 
castaneous. 
