Fig. 1 . a, Crematog aster ( Orthocrema ) sumichrasti may a subsp. 
nov. Worker in profile; b, head of same, dorsal view; c, C. ( Aptero - 
crema) atitlanica sp. nov. female in profile; d, antenna of same; e, 
male in profile; /, head of same, dorsal view; g, 12,-jointed left and h, 
11-jointed right antenna of same male specimen; i, four basal joints of 
another male specimen more enlarged, showing partial division of 
third joint; j, volsella of male atitlanica, k, volsella of male sumichrasti 
(typical) . 
