138 
Psyche 
[December 
a single transverse median row of straight longer setae. 
First and second segments each with a single median 
transverse row of long straight setae, slightly thicker and 
larger than those on the third segment. 
Clothing of head straight, sturdy setae of three sizes: 
the smallest size is subequal to the clothing setae of the 
fourth antennal segment, but much stouter and more spini- 
form. These are scattered sparsely and irregularly over 
anterio-dorsal area between antennal bases and over pos- 
terior half of the head. Slightly longer setae are scattered 
irregularly and sparsely over the dorsal and lateral sur- 
faces of the head. The longest setae are approximately 
four times as long as the shortest and are arranged as 
follows: a band of seven setae on each side covering the 
cheek areas of the head ; three other setae, two in a straight 
line between the middle of the antenna base and the rear 
of the head, and the third about midway between these two 
and displaced laterally. 
Body with sparsely scattered setae of varying lengths 
which tend to form interrupted tranverse bands. Fifth 
abdominal segment with four setae definitely longer than 
any anterior body setae arranged along the posterior edge. 
Sixth segment with eight similar setae, with four somewhat 
shorter setae located between them. 
Furcula, anal horns, unguiculus, and tenent hairs lack- 
ing. Claw large, with a single large protruding basal 
tooth. 
Mandibles without molar area equipped with five large 
teeth, the basal two being larger. Maxillae with galea 
possessing three teeth and an expanded basal area. Lamel- 
la one and three pointed arcuate, with serrate single edges. 
Lamella two projecting beyond the rest of the maxilla and 
possessing a multiple pectinate edge for the projecting 
part. 
Male genital plate circular, slightly raised, with twenty 
short, fairly uniform smooth setae, arranged as follows: 
eight forming a circlet about the genital aperture, and the 
remaining twelve filling a roughly lunate area anterior 
to this group. 
