EN. 
ec X 5 
PSYCHE 
A JOURNAL OF ENTOMOLOGY 
Established in 1874 
Vol. 69 June, 1962 No. 2 
CONTENTS 
Defense Mechanisms of Arthropods. X. A Pheromone Promoting 
Aggregation in an Aposematic Distasteful Insect. 
T. Eisner and F. C. Kafatos 53 
The Trinidad Cave Ant Erebomyrma (= Spclaeomyrmex) urichi 
(Wheeler), with a Comment on Cavernicolous Ants in General. 
Edward O. Wilson 62 
A New Ant of the Genus Amblyopone from Panama. 
William L. Brown, Jr. 73 
A New Ant of the Genus Epitritus from South of the Sahara. 
William L. Brown, Jr. 77 
A New Damothus and a Key to the North American Dignathodontid 
Genera (Chilopoda: Geophilomorpha : Digr^thodontidae) 
R. E. Crabill, Jr T.. 81 
cm i?:s. 
U.s. Mi'll, 
