20 Psyche [March-June 
Head, pronotum and tergites with a number of scattered 
bristles. 
Head (fig. 3) elongate with somewhat curved or straight 
parallel sides; a thick prominent dark ridge above the base of 
the antenna; a whitish eye spot behind the base of the antenna. 
Postmentum (“gula”) about half or less than half as wide in 
the middle portion as in the anterior region (fig. 5), sides rather 
evenly concave from the widest region to the posterior end. 
Mandibles (figs. 3 and 5) with bases slightly curved on the 
outside edge and tips curved inward; left mandible with three 
marginal teeth, the second and third with sinuate edges together 
making a symmetrical marginal outline; the right mandible 
with two prominent marginal teeth about equal in size. An- 
tennae with ten to eleven articles, the third about twice the 
length of the second and darker than the outer articles. 
Pronotum (fig. 3) proportionately long, sides fairly straight, 
front margin angularly emarginate and edges somewhat turned 
up to fit the back of the head and sometimes flared outward at 
the junction with the sides, hind margin evenly and convexly 
curved. Femora swollen and tibiae rather short and thick, less 
than half as wide as the femora. Tibiae with three terminal 
thick dark spines. 
Measurements in millimeters: — 
Length of head with mandibles 2.21-2.71 
Width of head 0.94-1.12 
Widest width of postmentum 0.41-0.49 
Narrowest width of postmentum 0.16-0.23 
Length of left mandible 0.91-1.06 
Width of pronotum 0.92-1.06 
Length of pronotum in middle 0.56-0.79 
Length of hind tibia 0.71-0.88 
A single paratype soldier of K. bequaerti Snyder from Banos, 
Oriente, Cuba has proportionately wider pronotum and the tips 
of the mandibles are a little straighter. I am not sure that these 
characters will always show specific distinction in a large series. 
The descriptions are based upon eight reproductives and 
about thirty-seven soldiers. Samples from eight colonies were 
collected on the Florida Keys by Dr. E. M. Miller of the Uni- 
versity of Miami, Coral Gables, Florida, and by the author. I 
have recently received samples from three colonies collected in 
Jamaica by Dr. E. A. Chapin of the U. S. National Museum to 
