Coenaletes caribaeus: male antennal clasping organ.
Lower = second antennal segment: inner side with 2 spine-like truncate setae; Upper left = third antennal segment: inner side with 2 spine-like truncate setae; note distally the third antennal segment sense organ. Upper right = fourth antennal segment;
SEM by Palacios-Vargas, J. © 2006.