86 Psyche [June 
Crematogaster (Acrocoelia) creightoni sp. nov. 
Female. Length 5 - 5.2 mm. ; fore wing 4 mm. 
Closely resembling kennedyi Wheeler in form but aver- 
aging smaller; the head narrower in proportion to its 
length, with somewhat more rounded sides ; antennal scapes 
slightly longer. Thorax shorter ; mesonotum decidely 
shorter, scarcely longer than broad ; epinotal spines longer, 
more slender, less swollen at their bases. Petiole more con- 
cave above, with more sharply marginate sides ; postpetiole 
distinctly shorter in proportion to its width and with less 
pronounced posterior emargination. Gaster of the same 
shape as in kennedyi. 
Head more shining, especially behind; fine piligerous 
punctures of mesonotum and scutellum more numerous. 
Pilosity on all parts of the body, including the wing- 
membranes, longer, much more abundant and of more un- 
even length. 
Brownish red; front and middle of occiput, mesonotum, 
scutellum and gaster black; scapes, upper surface of post- 
petiole and middle portions of femora and tibiae dark brown ; 
pleurae spotted with brown. Wings, as in kennedyi, white 
with white veins and white, or in some specimens, slightly 
brownish pterostigma. 
Described from six specimens from Roanoke, Virginia, 
Sept. 10, 1932 (W. S. Creighton). 
C. creightoni might, perhaps, be regarded as a sub- 
species of kennedyi. In color and pilosity the female of the 
former is certainly more closely related to its host, but the 
color of the wings is quite different, being like that of 
kennedyi and the typical lineolata. Dr. Creighton has sent 
me the following note: “Unfortunately, I cannot give you 
any startling facts about the colony since it appeared to be 
perfectly normal in every respect. As I recall, it was un- 
der a limestone slab not far from a small stream. There 
were many sexual forms in the nest, and of these I should 
say that the normal ones exceeded the parasitic males and 
females by perhaps two to one. Certainly there was no 
excessive proportion of the latter.” 
