48 
Psyche 
[June-Sept. 
their posterior borders. Thorax with a conspicuous small 
black spot on each side at the tegular insertions as in the 
immature female and also as in the male sumichrasti. 
Crematogaster (Orthocrema) sumichrasti maya subsp. nov. 
Worker. Length 3-8.3 mm. 
Very similar to the typical sumichrasti but differing as 
follows: Clypeal carinse more pronounced, antennal scapes 
extending only 1/5 their length beyond the posterior border 
of the head (in sumichrasti 1/4) ; lateral marginations 
of mesonotum and denticles at its posterior end more pro- 
nounced as in the subsp. surdior; epinotal spines longer 
and more distinctly recurved ; petiole more narrowed ante- 
riorly. 
Sculpture as in sumichrasti but the mandibles more 
coarsely striated and more opaque and the pronotum longi- 
tudinally rugulose. 
Pilosity yellow as in sumichrasti and very long, especially 
on the thorax and gaster. 
Black or brown black, much darker than the subsp. sur- 
dior; mandibles, club of antennse, trochanters and tarsi 
brownish yellow. 
Literature Cited 
1897. Emery, C. Glanures Myrmecologiques. Bull. Soc. Ent. France, 
pp. 13, 14, fig. 
1884. Forel, A. Etudes Myrmecologiques en 1884. Bull. Soc. Vaud. 
Sc. Nat. 20, p. 60. 
SmmEorel, A. Fourmis de Costa Rica recoltees par M. Paul Biolley. 
Bull. Soc. Vaud. Sc. Nat. (5) 44, p. 46. 
1934. Skwarra, E. Oekologische Studien fiber Ameisen und Ameisen- 
pflanzen in Mexico. R. Leopold, Konigsberg, p. 120. 
1910. Wheeler, W. M. Ants, their Structure, Development and 
Behavior. Columbia Univ. Press, pp. 448, 449. 
1919. Wheeler, W. M. The Parasitic Aculeata, a Study in Evolution. 
Proc. Amer. Philos. Soc. 58, pp. 1-40. 
1930. Wheeler, W. M. A New Parasitic Crematogaster from Indiana. 
Psyche 37, pp. 55-60. 
1933. Wheeler, W. M. A Second Parasitic Crematogaster. Psyche 
40, pp. 83-86. 
