PSYCHE 
A JOURNAL OF ENTOMOLOGY 
Vol. 74 March, 1967 No. 1 
CONTENTS 
The First Mesozoic Ants, with the Description of a New Subfamily. 
E. 0. Wilson , F. M. Carpenter, and W , L. Brown, Jr 1 
Anatea, an Ant-Mimicking Theridiid Spider from New Caledonia 
(Araneae: Theridiidae) . Jonathan Reiskind and Herbert W. Levi 20 
Cave Carabidae (Coleoptera) of Mammoth Cave, Part II. 
Thomas C. Barr, Jr 24 
A New Species of Trachysphyrus from the Andes of Ecuador (Hymen- 
optera, Ichneumonidae) . Charles C. Porter 27 
Studies on Free Colonies of Cryptocerus texanus Santschi (Hymen- 
optera : Formicidae). Wm. S. Creighton 34 
Barriers to Gene Flow in Natural Populations of Grasshoppers. 
1. The Black Canyon of the Gunnison River and Arphia conspersa. 
Robert B. Willey and Ruth L. Willey 42 
Studies on North American Carboniferous Insects. 5. Palaeodictyoptera 
and Megasecoptera from Illinois and Tennessee, with a Discussion 
of the Order Sypharopteroidea. F. M. Carpenter 
58 
